1) The normal room temperature is said to be about 20°C
2) 5 day is equivalent to 120 hr
3) 756 m³/s is equivalent 56000 L/s
4) It would take the snail 5 hours to crawl 75 m
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
1) The normal room temperature is said to be about 20°C
2) 1 day = 24 hr
5 day = 5 day * 24 hr per day = 120 hr
3) 1 m³ = 1000 L
756 m³/s = 56 m³/s * 1000 L/m³ = 56000 L/s
4) 1 m = 100 cm
75 m = 7500 cm
Time = 7500 / (25 cm/min) = 300 min = 5 hours
Find out more on equation at: https://brainly.com/question/2972832
#SPJ1
What is the area of this triangle?
Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth.
___ cm^2
Answer: 43.5
Step-by-step explanation:
[tex]A=\frac{1}{2}(8)(12)(\sin 65^{\circ}) \approx \boxed{43.5}[/tex]
Raphael graphed the system of equations shown.
y = – 3
y = x – 0.8
A coordinate grid with 2 lines. The first line passes through the points (0, negative 0.1) and (0.8, 0). The second line is horizontal passes through the point (0, negative 3). The lines intersect at a point with a coordinate of slightly to the left of negative 2 and negative 3.
What is the best approximation for the solution to this system of equations?
(–3.2, –3)
(–2.9, –3)
(–2.2, –3)
(–1.9, –3)
–3x + StartFraction one-half EndFractiony = –3
b =
2
4
6
8
Answer:
C. (-2.2, -3)
Find the next two terms in this
sequence.
1, -3, 9, -27, 81, [?],
-243
Step-by-step explanation:
số dương nhân -3 thì đc số âm, số âm nhân với -3 để đc số dương.
vd: 1. -3 = -3 ; -3 .-3= 9 ;..... 81 . -3= -243
Answer:
all once will product the term by mines 3
so the final will bt -3 *81 = -243
1. Given the points A (2, 14) and B (17, -6).
(a) Find the distance of the line AB.
(b) Find the midpoint of the line AB.
(c) Find the gradient of the line AB.
(d) Find the equation of the line AB.
(e) Find the equation of the line parallel to AB passing through the point (3,5).
(f) Find the equation of the line perpendicular to AB passing through point (4,-2).
(g) Draw the above 3 lines on a graph.
Answer:
Step-by-step explanation:
4 /3 r/ 6 start fraction, 3, divided by, 4, end fraction, equals, start fraction, 6, divided by, r, end fraction r =
The value of r is 6
Given start fraction and end fraction are 4/3,r/6 and 3 divided by 4 end fraction which is equal to start fraction 6 divided by r end fraction
We need to calculate the value of r
Fractions are used to depict the components of a whole or group of items. Two components make up a fraction. The numerator is the number that appears at the top of the line.
It indicates how many equally sized pieces of the entire thing or collection were removed. The denominator is the quantity listed below the line. The total number of identical objects in a collection or the total number of equal sections that the whole is divided into are both displayed
According to the statement the equation formed
4/3*r/6*3/4 = 6/r
Solving the equation by 4/3*3/4 = 1
Hence 1*r/6 = 6/r
Therefore r^2 = 36
r = 6
Hence the value of r is 6
Learn more about fraction here
https://brainly.com/question/78672
#SPJ10
Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! i will give u brainliest
Answer: The answer is x = +/- [tex]\sqrt{y+1}[/tex].
Step-by-step explanation: You can solve this by simply rearranging the equation to make x by itself.
-[tex]x^{2}[/tex] = -y - 1
Then cancel out the -1 by dividing it through to obtain.
[tex]x^{2} =y+1[/tex]
The final step is to square root both sides to get rid of the exponent.
x = [tex]\sqrt{y+1}[/tex]
This should be the answer since square roots have a +/-.
The dot plots below show the ages of students belonging to two groups of painting classes:
A dot plot shows two divisions labeled Group A and Group B. The horizontal axis is labeled as Age of Painting Students in years. Group A shows 1 dot at 9, 7 dots at 10, 8 dots at 15, 8 dots at 17, and 6 dots at 19. Group B shows 6 dots at 10, 5 dots at 14, 6 dots at 18, 5 dots at 25, 4 dots at 28, and 4 dots at 29.
Based on visual inspection, which group most likely has a lower mean age of painting students? Explain your answer using two or three sentences. Make sure to use facts to support your answer.
Answer:
The group that is most likely able to have a lower mean age of painting students is Group A
Step-by-step explanation:
mean = sum of all terms divided by total number of terms
Looking at the graph data you have provided you can see that group A's students are a younger than students in Group B.
Which means when you calculate the mean the group which would give you the lower ratio with the same denominator of K (let there is K number of students in the class) will have lower mean age
here group A students are younger therefore their ratio will be lower
hence lower mean age
more mean based questions at
https://brainly.com/question/26509052
#SPJ10
Julie invests money in an account that pays compound intrestof 5% per annum after 3 years julie has 2778.30 how much did julie initially invest
Answer:
[tex]\huge\boxed{2400}[/tex]
Useful Information:
The formula for compound interest is: [tex]initial.amount*interest.rate^{no.years}[/tex]
Step-by-step explanation:
To work this out, you would first have to convert the percentage into a decimal. You can do this by dividing the percentage of 5% by 100, which gives you 0.05. This is because percentages are out of 100.
The next step is to add 1 to 0.05, this gives you 1.05. This is because you are working out the percentage increase.
The next step is to substitute the values into the formula. This gives you[tex]initial.amount*1.05^{3}=2778.30[/tex]
To work out the initial value, you would divide the final amount of 2778.30 by [tex]1.05^3[/tex], which gives you 2400. This is because you are rearranging the formula to find the initial investment.
1) Divide 5 by 100.
[tex]\frac{5}{100}=0.05[/tex]
2) Add 1 to 0.05.
[tex]1+0.05=1.05[/tex]
3) Substitute the values into the formula.
[tex]initial.amount*1.05^{3}=2778.30[/tex]
4) Divide 2778.30 by [tex]1.05^3[/tex].
[tex]\frac{2778.30}{1.05^3}=2400[/tex]
A hiking club is planning a hike in the mountains. They estimates that it will take 3.5 hours to walk 6km. How long will it takes the group to walk 24km?
Answer:
14
Step-by-step explanation:
First divide 24 and 6 to find how much 6's there are in 24.
24/6=4
Now, we take that number and multiply it by 3.5 to find how long it will take the group to walk 24km.
3.5*4=14.
It will take the group 14 hours to walk 24 km.
Hope this helps!
If not, I am sorry.
What is the difference between -5 and 3?
Answer:
8
Step-by-step explanation:
3 - -5 = 8
filling space here dont mind this
Tomas learned that the product of the polynomials
(a + b)(a ab + bf) was a special pattern that would
result in a sum of cubes, a3 + b3. His teacher
put four
products on the board and asked the class to identify
which product would result in a sum of cubes if a =
2x and b = y
The product that would result in a sum of cubes if a =2x and b = y is: (2x + y)(4x² – 2xy + y²).
Product that would result in a sum of cubesGiven:
Product of polynomials=(a + b)(a²- ab + b²)
Sum of cubes=a³+ b³
Hence,
a³+ b³ = (a + b) (a²-ab + b²)
When:
a=2x
y=b
So,
a³+ b³= (2x + y ) [ (2)² - (2x) (y) + y²)
a³+ b³= (2x + y ) [ 4x² - 2xy + y²]
a³+ b³ = (2x + y)(4x² – 2xy + y²)
Therefore the product that would result in a sum of cubes if a =2x and b = y is: (2x + y)(4x² – 2xy + y²).
Learn more about product that would result in a sum of cubes here:https://brainly.com/question/14305581
#SPJ1
A car travels a distance of 300 miles along a straight road from point A to point B. The car maintains a speed of 30 miles pr
hour (mph) during the first 150 miles and a speed of 50 mph during the remaining 150 miles. What is the average speed of
car for the whole trip?
O20.0 mph
37.5 mph
40.0 mph
O45.0 mph
O80.0 mph
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Answer:
Definition: The average speed over the course of mobion can be calculated using the formula Total Distance Traveled Average Speed = Time of Travel A car fravels a distance of 300 miles along a straight road from point A to point B. The car maintains a speed of 30 miles per hour (mph) during the first 150 miles and a speed of 50 mph during the remaining 150 miles. What is the average speed of the car for the whole trip? 20.0 mph 37.5 mph 40.0 mph 45.0 mph 80.0 mph QUESTION 13 Wriat is the height h, of the equilateral triangle shown below? Aak Sareend Sabmit ro save and submit. Click Save AlAnseers to save all ansuers Save
Average speed of the whole trip is equals to 37.5 mph.
What is average speed?
" Average speed is defined as the ratio of the total distance travelled to the total time taken."
Formula used
Average speed = [tex]\frac{Total distance travelled }{Total time taken}[/tex]
According to the question,
Total distance travelled = 300miles
Speed for first 150 miles = 30 miles per hour
For, 30 miles = 1hour
⇒150 miles = 5 hours
Speed for remaining 150 miles = 50 miles per hour
For, 50 miles = 1hour
⇒150 miles = 3 hours
Substitute the value in the formula to get average speed,
Average speed = [tex]\frac{300miles}{(5 + 3)hours}[/tex]
[tex]=\frac{300}{8}\\ \\= 37.5 miles per hour[/tex]
Hence, average speed of the whole trip is equals to 37.5 mph.
Learn more about average speed here
https://brainly.com/question/12322912
#SPJ2
Which statement is true about the ordered pair (3 , 4)? A. To plot the ordered pair (3 , 4), travel four units to the right on the y-axis and three units up on the x-axis, from the origin. B. To plot the ordered pair (3 , 4), travel four units to the right on the x-axis and three units up on the y-axis, from the origin. C. To plot the ordered pair (3 , 4), travel three units to the right on the x-axis and four units up on the y-axis, from the origin. D. To plot the ordered pair (3 , 4), travel three units to the right on the y-axis and four units up on the x-axis, from the origin.
Answer:
C. To plot the ordered pair (3 , 4), travel three units to the right on the x-axis and four units up on the y-axis, from the origin.
Step-by-step explanation:
Which statement is true about the ordered pair (3, 4)?
A. To plot the ordered pair (3 , 4), travel four units to the right on the y-axis and three units up on the x-axis, from the origin.
The y-axis is the vertical line you can't go left or right, you go up or down
Hence this answer is NOT correct
B. To plot the ordered pair (3 , 4), travel four units to the right on the x-axis and three units up on the y-axis, from the origin.
The coordinates of a point is (x, y) where x = 3 and y = 4 so moving right 4 units is wrong as x = 3
Hence this answer is NOT correct
C. To plot the ordered pair (3 , 4), travel three units to the right on the x-axis and four units up on the y-axis, from the origin.
three units to the right on the x-axis
four units up on the y-axis
Hence this answer is the correct
D. To plot the ordered pair (3 , 4), travel three units to the right on the y-axis and four units up on the x-axis, from the origin.
y does not equal 3 and you cant move right or left on the y-axis
Hence this answer is NOT correct
A solid right pyramid has a regular hexagonal base with an area of 7.4 units2. The pyramid has a height of 6 units.
It should be noted that the volume of the pyramid will be 14.8 unit³.
From the information given, the solid right pyramid has a regular hexagonal base with an area of 7.4 units².
The height of the pyramid is also 6 units.
Therefore, the volume of the pyramid will be
What is the formula for the area of the pyramid?= 1/3 × Area of the base × height
= 1/3 × 7.4 × 6
= 14.8 units³
In conclusion, the volume of the pyramid is 14.8 unit³.
To learn more about the pyramid visit:
brainly.com/question/218706
#SPJ1
A point P is 45km from Q in a bearing of 75⁰ how far is P north of Q
Answer:
11.65
Step-by-step explanation:
45 cos 75 (in degrees not radians) =
11.6468570296
jiskha
raka
Find the accumulated amount of an account if the principal amount was 5000 at 16% interest at the end of 3 years
Answer:
2400
Step-by-step explanation:
Find the accumulated amount of an account if the principal amount was 5000 at 16% interest at the end of 3 years
Solution
The formula for simple interest
S.I = P *R* T/100
Where P = Principal = 5000
R = Rate = 16%
T = Time = 3 years
5000 * 16 * 3/100
50 * 16 * 3
= 2400.
Graph the function.
For the function whose graph is shown below, which is the correct formula for the function?
Answer:
[tex]\displaystyle{y=-3x-1}[/tex]
Step-by-step explanation:
I have two methods: standard-learning which will explain overall mathematically - basically formula, etc. - while the other one trick-tips method will rely on choices rather mathematical calculations but with explanation on why and how.
Standard-LearningFirst, let’s pick two points that are integers since they are easily to be found via graphs. We see that (-1,2) and (0,-1) is a part of the graph so now we finally have picked two points for our calculations.
When we have finally picked two points, we will be using them for slope calculation. This part is crucial for finding an equation of a line because a line has to contain slope in its equation.
To calculate the slope, we use rise over run formula which is:
[tex]\displaystyle{\dfrac{\Delta y}{\Delta x} = \dfrac{y_2-y_1}{x_2-x_1}}[/tex]
Note that [tex]\displaystyle{\Delta}[/tex] is delta - in both mathematic and physics, it means changes in.
So, we will be using those two points that we have picked to substitute in the slope formula. Let’s determine that [tex]\displaystyle{(x_2,y_2)=(-1,2)}[/tex] and [tex]\displaystyle{(x_1,y_1)=(0,-1)}[/tex].
Therefore, our slope will be:
[tex]\displaystyle{m=\dfrac{2-(-1)}{-1-0}}\\\\\displaystyle{m=\dfrac{2+1}{-1}}\\\\\displaystyle{m=-3}[/tex]
Next, find the y-intercept. From the graph, we see that the graph intercepts at (0,-1) which is y-intercept so we will only use y-value. Hence, b = -1.
From the slope-intercept form:
[tex]\displaystyle{y=mx+b}[/tex]
Substitute m (slope) = -3 and b (y-intercept) = -1. Hence, the equation of line is:
[tex]\displaystyle{y=-3x-1}[/tex]
Fast Way (Trick-Tips)Relying on choices and knowledge of graph, notice that there are slopes of 3 and -3.
Keep in mind that if slope is negative, it will decrease down and if slope is positive, it will increase up.
Therefore, cut off all choices with positive slopes which are 1 and 3. We are now left with 2 and 4.
Next, look at the graph and tell its y-intercept. It intercepts y at y = -1 so we take value of -1.
So choice 4 is cut off and now we have choice 2 as the answer.
Learn More:
https://brainly.com/question/27514958 - Find the line equation with given points
What is the equation of the directrix of the parabola given by the equation y2 = -24x?
The equation of the directrix of the parabola given is x = 6, Option D is the correct answer.
What is Directrix of a Parabola ?A parabola is a U shaped curve whose all point are at same distnace from a point called as focus and a line called as Directrix .
The equation of the parabola given is
y² = -24x
When the standard equation of parabola is
(y - k)² = 4p (x - h),
where the focus is (h + p, k) and the directrix is x = h - p.
here h = 0
p = -24/4 = -6
x = 0 - (-6)
x = 6
Therefore Option D is the correct answer.
To know more about Directrix
https://brainly.com/question/17376399
#SPJ1
What is the scale factor of this dilation?
Answers:
A. 1/2
B.3/5
C.1 2/3
D.2
Answer:
3/5
Step-by-step explanation:
scale factor of ab to A'B'
AB:A'B'
5 : 3
in fraction the scale
factor is 3
—
5
heance a reduction.
hope it helps thank me later
#galadohannadivine29
#carry on learning
What is the value of k?
Answer:
The value of K in free space is 9 × 109
Step-by-step explanation:
Find the measure of angle AEC.
Answer:
∠ AEC = 49°
Step-by-step explanation:
the sum of the angles in Δ ACE = 180° , that is
∠ AEC + 90° + 41° = 180°
∠ AEC + 131° = 180° ( subtract 131° from both sides )
∠ AEC = 49°
Answer:
49°
Step-by-step explanation:
<AEC = 180°_(41°+90°)
=180°_131°
<AEC= 49°
**90° (Complementary Angles)**
[And if u add: 41°+90°+49°= 180°]
{180° is the area of all triangles}
Hope I helped :)
the equation of the line in the graph is y = (blank) x+ (blank)
[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]
[tex]\qquad \tt \rightarrow \: y=-x-1[/tex]
____________________________________
[tex] \large \tt Solution \: : [/tex]
Taking two points : (-1 , 0) and (0 , -1)
[tex] \textsf{Calculate slope (m)} [/tex]
[tex]\qquad \tt \rightarrow \: m = \cfrac{rise}{run} [/tex]
[tex]\qquad \tt \rightarrow \: m = \cfrac{y_2 - y_1}{x_2 - x_1} [/tex]
[tex]\qquad \tt \rightarrow \: m = \cfrac{0 - ( - 1)}{ - 1 - 0} [/tex]
[tex]\qquad \tt \rightarrow \: m = \cfrac{0 + 1}{ - 1}[/tex]
[tex]\qquad \tt \rightarrow \: m = - 1[/tex]
[tex] \textsf{Y - intercept (c) of graph = -1 } [/tex]
Equation of line in slope - intercept form :
[tex]\qquad \tt \rightarrow \: y = mx + c[/tex]
[tex]\qquad \tt \rightarrow \: y = - x - 1[/tex]
Answered by : ❝ AǫᴜᴀWɪᴢ ❞
Is 937.5 as the same as 937.50 Answer the question.
Need help urgently please
Answer:
x = -12
y = 3
Step-by-step explanation:
[tex]1/2x + 6(x+15) = 12\\1/2x + 6x + 90 = 12\\6\frac{1}{2} x + 90 = 12\\6\frac{1}{2} x= -78\\x = -12[/tex]
[tex]y = x + 15\\y = -12 + 15\\y = 3[/tex]
(-3, 1)
-5-4-3
(-2,-4)
k
4
4
ob
1
2-
3+
(2/2)
What is the equation, in point-slope form, of the line
that is parallel to the given line and passes through the
point (-3, 1)?
Oy-1= -2(x+3)
Oy-1=-(x+3)
Oy - 1 =
Oy-1 =
(x+3)
(x+3)
Answer:
What is the slope of the line represented by the equation y = y equals StartFraction 4 Over 5 EndFraction x minus 3.x – 3?
Step-by-step explanation:
The equation of line that is parallel to the given line having slope m = -1 and passes through the point ( -3 , 1 ) is y = -x - 2
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation of line be represented as A
Now , the value of A is
Let the first point be P ( -3 , 1 )
Now , the slope of the line is m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Substituting the values in the equation , we get
The slope of the line m = -1
Now , the line is parallel to the line passing through P
So , the slopes of the lines are equal
And , the equation of line is y - y₁ = m ( x - x₁ )
On simplifying , we get
y - 1 = -1 ( x - ( -3 ) )
y - 1 = -1 ( x + 3 )
Adding 1 on both sides , we get
y = -x - 3 + 1
y = -x - 2
Hence , the equation of line is y - 1 = -1 ( x + 3 )
To learn more about equation of line click :
https://brainly.com/question/14200719
#SPJ5
The base of the pyramid is a rectangle that is not a
square. Which statements correctly describe the
symmetry of the pyramid? Check all that apply.
The pyramid has four planes of symmetry.
O The pyramid has two planes of symmetry.
An axis of symmetry passes through the vertex and
is perpendicular to the base.
An axis of symmetry passes through the vertex and
through one of the triangular faces of the pyramid.
An angle that measures 90° is an angle of rotation
for an axis of symmetry for the pyramid.
An angle that measures 45° is an angle of rotation
for an axis of symmetry for the pyramid.
An axis of symmetry passes through the vertex and is perpendicular to the base. Then the correct options are B, C, and E.
What is a rectangular pyramid?Take a rectangle. This is the base. Now take 4 triangles such that each of them are connected to one-one side of the base rectangle and when they're taken together, they form a closed object. That shape is called rectangular pyramid.
The base of the pyramid is a rectangle that is not a square.
The pyramid has two planes of symmetry.
An axis of symmetry passes through the vertex and is perpendicular to the base.
An angle that measures 90° is an angle of rotation for an axis of symmetry for the pyramid.
Then the correct options are B, C, and E.
Learn more about rectangular pyramid here:
https://brainly.com/question/16261758
#SPJ1
What is the solution to –2(8x – 4) < 2x + 5?
x > x is greater than StartFraction 1 Over 6 EndFraction.
x < x is less than StartFraction 1 Over 6 EndFraction.
x > 6
x < 6
The solution to the inequality, -2(8x – 4) < 2x + 5, is: B. x > 1/6.
How to Find the Solution of an Inequality?To find the solution to an inequality, solve the inequality to isolate the variable.
Given the inequality, -2(8x – 4) < 2x + 5, open the bracket:
-16x + 8 < 2x + 5
Combine like terms
-16x - 2x < -8 + 5
-18x < -3
Divide both sides by -18 then reverse < to >
-18x/-18 > -3/-18
x > 1/6
The solution is: B. x > 1/6
Learn more about inequalities on:
https://brainly.com/question/11613554
#SPJ1
Find the solution:
3x + 2y = 12
-2x + 3y = 5
Answer:
x = 3
y = 2
Step-by-step explanation:
3x + 2y = 12
-2x + 3y = 5 to find the solution we will use elimination method and for that, multiply second equation with 3 and the first equation with 2
2 * 3x + 2y = 12
6x + 4y = 24
3 * -2x + 3y = 5
-6x + 9y = 15 now find the sum of both equation:
6x + 4y -6x + 9y = 24 + 15 add like terms
13y = 39 divide both sides by 13
y = 3 now that we found the value of y we can use this to calculate the value of x
3x + 2y = 12 replace y with 3
3x + 2*2 = 12
3x + 4 = 12 subtract 4 from both sides
3x = 9 divide both sides by 3
x = 3
is 1/-1x equivalent
Answer:
[tex]\huge\boxed{\dfrac{1}{-1x}=-\dfrac{1}{1x}=-\dfrac{1}{x}=-x^{-1}}[/tex]
Solve and show your work for each equation.
What is 0.36... (36 repeating) expressed as a fraction in its simplest form?
What is 0.36... (6 repeating) expressed as a fraction in its simplest form?
Answer:
The answer will be 9/25.
Please mark me as the brainliest.