Answer:
23
Step-by-step explanation:
3(-2)^2-2(-2)+7
=23
Bottom part, I need a answer quick please help!
Answer: 1/2, -12
Step-by-step explanation:
[tex]y = (2x - 1)(2x + 24)[/tex]
Set both sets of expressions in parenthesis equal to 0
[tex]2x-1=0, 2x+24 = 0[/tex]
solve...
[tex]x=\frac{1}{2}, x=-12[/tex]
Solve and classify the given system of linear equations.
p=5(q+2)
p=q-3
Answer:
q = -3.25
p = -6.25
Step-by-step explanation:
substitute p with ( q-3)
q-3 = 5(q+2)
q-3 = 5q + 10
q-5q = 3+10
-4q = 13
q = -3.25
if q = -3.25 therefore
p= -3.25 -3
= -6.25
Write an explicit formula for an, the nth term of the sequence 4, 20,100. WILL GET BRAINLIEST!!!!!
Answer:
aₙ = 4(5)ⁿ⁻¹
Explanation:
To identify a geometric series: second term = √(first term * third term)
Here given:
1st term: 42nd term: 203rd term: 100check ============
20 = √(100*4)
20 = √400
20 = 20 Hence its a geometric term.
Find common difference (r):
20/4 = 5 or 100/20 = 5
Geometric term formula:
aₙ = a₁(r)ⁿ⁻¹ [where a1 is the 1st term, r is common difference]
insert values found
aₙ = 4(5)ⁿ⁻¹ ......this is the nth term.
4,20,100
First term=a=4Common ratio
r=20/4=5Now
explicit formula
a_n=ar^{n-1}a_n=4(5)^{n-1}A train travels from City A to City B. The table below shows the distance and
the amount of time it takes on the train.
Distance (km)
12
24
42
Time (in minutes)
2 4 7
O The train does not always go the same distance each minute.
O The train appears to go the same distance each minute.
Predicted distance traveled in 9 minutes: km
Based on the information provided in the table, the train appears to go the same distance each minute.
Does the train go the same distance each minute?
In order to determine if the train travels the same distance each minute, the average speed of the train has to be determined. Average speed is the total distance travelled per time.
Average speed = total distance / total time
Average speed when distance is 12km = 12 km /2 = 6km/hrAverage speed when distance is 24km = 24 km /6 = 6km/hrAverage speed when distance is 42km = 42 km /7 = 6km/hrTo learn more about average speed, please check: https://brainly.com/question/21734785
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find the value of sinx if tanx=5/4
Answer:
sinx=5/√41
Step-by-step explanation:
tanx=5/4=p/b
According to Pythagoras's theroem;
h=√p^2+b^2
or, h=√5^2+4^2
or, h=√25+16
:-h=√41
Now,
sinx=p/h
=5/√41
help me pls! giving out brainliest
Answer:
1) 3/2
2) 13/10
3) 1/3
4) 9/7
5) 13/20
Step-by-step explanation:
When building a house, the number of days required to build is inversely proportional to with the number of workers. One house was built in 110 days by 8 workers. How many days would it take to build a similar house with 44 workers?
Answer:
605
Step-by-step explanation:
1. 110:8
2. 110÷8=13.75
3. 13.75×44=605
The length of a rectangle 3yd is less than twice the width, and the area of the rectangle is 14yd^2. Find the dimensions of the rectangle.
Answer: 4 yd x 3.5 yd
Step-by-step explanation:
A = LW
L = 2x - 3
W = x
14 = (2x - 3)(x)
14 = 2x^2 - 3x
2x^2 - 3x - 14 = 0
(x + 2)(2x - 7)
x = - 2, 7/2 or 3.5 (length cannot be negative)
x = 3.5 (width)
Length
2x - 3
2(3.5) - 3
7 - 3 = 4
Mark as brainliest please TT. Thank you :D
Hope it helps!!!
Please help me!!!!!!!!!!!!!!!!!!!!!!!
Answer:
120(I'm not definitely sure)
Step-by-step explanation:
IQR= Q3- Q1= 170 - 50 = 120
What is the measure of angle 1?
Answer:
27 degrees
Step-by-step explanation:
The easy way is by remembering the formula (a-b)/2=c, where a is the larger angle, and b is the smallest angle. (90-36)/2=27.
The longer, more drawn out answer goes as follows. See the image to understand the notation I use:
AOE + BOD + BOA + DOE = 360AOE + BOD = 90 + 36 = 126BOA + DOE = 360 - AOE - BOD = 234Since the sum of a triangle's angles is 180, ODE = (180 - DOE) / 2Likewise, OBA = (180 - BOA) / 2Since CDE is 180, CDO = 180 - ODE = 180 - (180 - DOE) / 2Likewise, CBA is 180, so CBO = 180 - OBA = 180 - (180 - BOA) / 2The interior angles of the irregular polygon CBOD add up to 360, so CBO + CDO + BOD + BCD = 360.Substituting what we already found, 180 - (180 - BOA)/2 + 180 - (180 - DOE)/2 + 36 + BCD = 360Cleaning it all up, we get 180 + (BOA + DOE)/2 + 36 + BCD = 360As we found in line 3, BOA + DOE = 234, so substituting that in, 180 + 117 + 36 + BCD = 360Finally, solving for BCD (360 - 36 - 117 - 180) we get our answer, 27Note: The long drawn out method shown above is a way to derive the formula for the secant theorem. You do not need to use this method every time. Just remember, large angle minus small angle, all divided by 2. That is it.
anyone knows this?!
Answer:
I would get two news article that have done research on lets say the weather next week, and compare how they used data, and probability citing sources of course i know it sounds complicated
Step-by-step explanation:
i dont know if this helps- but i hope it does Lol
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
It's C
Step-by-step explanation:
Simplify the expression
Answer:
27/4 or 6 3/4
6.75 in decimal form
Step-by-step explanation:
Steven's family traveled 7/10 of the distance to his aunt’s house on Saturday. They traveled 2/3 of the remaining distance on Sunday. What fraction of the total distance to his aunt’s house was traveled on Sunday?
Answer:
Step-by-step explanation:
Answer: 1/5 of the total distance to his grandmothers house was traveled on Sunday
The total distance to to his grandmothers house is assumed to be 1
Marks family traveled 7/10 of the distance to his grandmothers house on Saturday. The remaining distance would
1 - 7/10 = 3 /10
They traveled 2/3 of the remaining distance on Sunday. This means that the distance that they travelled on Sunday is
2/3 × 3/10 = 2/10 = 1/5
mary has 3 blouses (red, black, and white), 2 pairs of pants (black and blue), and 4 pairs of shoes ( red, blue, black, and white). if mary picks each part of her outfit randomly, what is the probability that mary's outfit will be black bouse, black pants, black shoes?
The probability that Mary's outfit will be black blouse, black pants, black shoes is 1/24 if the Mary has 3 blouses, 2 pairs of pants, and 4 pairs of shoes.
What is probability?It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words the probability is the number that shows the happening of the event.
We have:
Mary has 3 blouses (red, black, and white), 2 pairs of pants (black and blue), and 4 pairs of shoes (red, blue, black, and white).
P(black blouse) = 1/3
P(black pants) = 1/2
P(black shoes) = 1/4
Probability that Mary's outfit will be black blouse, black pants, black shoes:
= (1/3)(1/2)(1/4)
= 1/24
Thus, the probability that Mary's outfit will be black blouse, black pants, black shoes is 1/24 if the Mary has 3 blouses, 2 pairs of pants, and 4 pairs of shoes.
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Find the equation of a line that is parallel to 2x + 6y - 7 = 0 and crosses the x - axis at x=3
please help me find area and circumference!!!
Answer:32.16
Step-by-step explanation:
AREA
A=πr2
π x 3.22≈32.16991
CIRCUMFERENCE
C=2πr
2 x π x 3.2≈20.10619
reflect the point worksheet
Answer:
I don't know the answer I thinkhelp please and show work:)
The height of the triangle will be equal to H=8.66 inches and the area of the triangle will be 43.30 square inches.
What is an area of a triangle?The space covered by the triangle in the two-dimensional plane will be the area of the triangle.
It is given that in the triangle all three sides are 10 inches:-
Height of the triangle=?
Area of the triangle=?
First the height of the triangle will be calculated as:-
[tex]\rm Tan\theta=\dfrac{P}{B} \\\\\\Tan\theta=\dfrac{P}{5}\\\\\\Tan60=\dfrac{P}{5}\\\\\\P=8.66\ inches[/tex]
The area of the triangle will be:-
[tex]\rm Area= \dfrac{1}{2}\times Base\times Height\\\\\\Area=\dfrac{1}{2}\times 5\times 8.66\\\\\\Area = \43.30\ square \ inches[/tex]
Hence the height of the triangle will be equal to H=8.66 inches and the area of the triangle will be 43.30 square inches.
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A quantity y varies inversely with the square of x. If y=8 when x=3, find y when x is 4
A. 3/2
B. 7/3
C. 9/2
D. 5/3
Answer:
look at the explanation
Step-by-step explanation:
In order to solve this, we'll set up a proportion.
Since y is inversely related to the square of x, therefore:
y=4/63 ----->9 (square of x)
y=?
25 (square of x)
According to the inverse relation:
y=4/63------->25
y=? --------
-->9 and y=4/175
Which point is located at -8.65−8.65minus, 8, point, 65?
The question is an illustration of a number line, and the point located at -8.65 is B
How to determine the point?From the complete question, we have the following highlight
Point B is between -8 and -9, and point B is closer to -9 than -8
No other point is between -8 and -9
So, we can conclude that the point located at -8.65 is point B
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Maria is camping when she starts to smell smoke. She turns on her radio and hears
that a forest fire is heading her way. How can Maria's organ systems interact to help
keep her safe? Include at least five organ systems in your response.
Maria's organ systems interact to help keep her safe Nervous system, Respiratory system, Endocrine System, Integumentary System and Muscular System.
What are the organ systems?The organ systems is the system of body which consist of different organs of the body. These organs help to work the body freely.
Maria is camping when she starts to smell smoke. She turns on her radio, to get the news that a forest fire is heading her way. The organs which help her to keep safe from fire are listed below:
Nervous system- It helps to react the body against the hazard.Respiratory system-This organ system help Maria to keep breath with increasing the breathing rate.Integumentary System-This system help to protect her inner body from external environment.Endocrine System- It will help to maintain energy level. Muscular System-This system will help to run and do physical task in the fire.Thus, Maria's organ systems interact to help keep her safe Nervous system, Respiratory system, Endocrine System, Integumentary System and Muscular System.
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10. The Harlem Renaissance of the 1920’s could be described as:
a) a period when African Americans gained political leadership
b) a major urban renewal project providing new houses for African Americans
c) a time of increased recognition of African American athletes
d) a rebirth of African American culture as seen through the experiences of musicians and writers
Answer:
Answer is A.
Step-by-step explanation:
I'm pretty sure lmk if I'm wrong.
3.
In the diagram shown below, AC is tangent to circle o at A and to circle Pat C, OP intersects AC at B, OA
AB = S, and PC = 10.
10
X
B
Р
5
A
What is the length of BC?
A. 6.4
B. 8
C 12.5
D. 16
Answer: 12.5
Step-by-step explanation:
12.5 is the length of BC.
Here, we have,
given that,
In the diagram shown below, AC is tangent to circle o at A and to circle Pat C, OP intersects AC at B, OA = 5, AB = 5, and PC = 10.
now, we know that,
∠OAB and ∠BCP are right angles, because of the tangents.
and, ∠OBA ≅ ∠CBP (vertical angles)
thus, we get,
ΔAOB ≅ ΔCBP, by AA rule.
so, we can set up the proportion:
10/4 = x/5
or, x = 12.5
Hence, 12.5 is the length of BC.
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Please help with this question!!
The value of y is 3 if the value of x is 4 in the linear equation with two variables.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
We have:
Two linear equations in two variables x and y
x + y = 7
x = 4
Plug x = 4 in the equation x + y = 7, we get:
4 + y = 7
y = 7 - 4
y = 3
Thus, the value of y is 3 if the value of x is 4 in the linear equation with two variables.
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Answer:
The value of y is 3 if the value of x is 4 in the linear equation with two variables.
What is a linear equation?
It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
We have:
Two linear equations in two variables x and y
x + y = 7
x = 4
Plug x = 4 in the equation x + y = 7, we get:
4 + y = 7
y = 7 - 4
y = 3
Step-by-step explanation:
Solve this system of linear equations. Separate
the x- and y-values with a comma.
7x = -63 - 11y
Adding both
15x=30x=2Putting in second one
8(2)=93+11y11y=16-9311y=-77y=-7Answer:
2, -7
Step-by-step explanation:
QuestionSolve the system of linear equations:
8x = 93 + 11y7x = -63 - 11y-------------------------------------------------------------------------------------
SolutionAdd the equations together to eliminate y:
8x = 93 + 11y
+ 7x = -63 - 11y
-------------------
15x = 30
⇒ x = 30 ÷ 15
⇒ x = 2
Now substitute the found value of x into one of the equations and solve for y:
⇒ 7x = -63 - 11y
⇒ 7(2) = -63 - 11y
⇒ 14 = -63 - 11y
⇒ 11y = -63 - 14
⇒ 11y = -77
⇒ y = -77 ÷ 11
⇒ y = -7
Therefore, x = 2 and y = -7
Each cube in this figure measures 1 foot on each side.
What is the volume of this figure?
45 ft³
80 ft³
200 ft³
300 ft³
Answer:
Your answer would be:
C.) 200 ft³
Step-by-step explanation:
Have a great rest of your day
#TheWizzer
Answer:
200 ft³
Step-by-step explanation:
It is given that: Each cube in the figure measures 1 foot.-> length of the figure[tex] (l) [/tex]= 5 feetWidth of the figure [tex](w) [/tex]= 5 feetHeight of the figure[tex] (h) [/tex]= 8 feetGiven figure is a cuboid.[tex]V_{figure} = l.b.h[/tex][tex]\implies V_{figure} = 5*5*8[/tex][tex]\implies V_{figure} = 200\: ft^3[/tex]hi i need help on this
Ruth has 12 feet of ribbon.
She uses 7 feet of it for a craft project and gives 28 inches of it to her sister.
How many inches of ribbon does she have left?
Enter your answer in the box.
Answer:
32 inches
Step-by-step explanation:
12 feet = 144 inches
7 feet = 84 inches
144 - 84 - 28 = 32
Answer:
32 inches
Step-by-step explanation:
1 feet= 12 inches
12×12 =144
7 feet- 12×7 =84
so ruth has 12 inches and she gives her sister 28
144-(84+28)
144-112
=32 inchey
ruth has left 32
hope it helps
can you mark me as the brainliest?
what number do i multiply π(pi)^2 by to end up with a number with no decimal
brainly +100 points for first correct response
π^2 x ___ =
Answer:
1/π²
Step-by-step explanation:
On multiplying π² by its inverse value, you get the answer to be 1, which has no decimal points.
π² × 1/π² = 1Answer:
π² × 1/π² = 1
Step-by-step explanation:
Given equation,
→ π² × ___ = ?
Let's keep the missing term as y, and product as 1 (a number with no decimal).
→ π² × y = 1
Then the answer will be,
→ π² × y = 1
→ [ y = 1/π² ]
Verification of the value of y,
→ π² × y = 1
→ π² × (1/π²) = 1
→ [ 1 = 1 ]
→ LHS = RHS
Hence, 1/π² is the missing term that ends up with a number with no decimal.
Find the zero of the linear equation f(X)=2 by graphing
Answer:
Slope: 0
Y-intercept: (0,2)
Step-by-step explanation:
2x + 3y = 5 complete the table for this two-variable equation
Answer + Step-by-step explanation:
I dont have the table to complete it but some point that can be,
2x + 3y = 5
3y = 5 - 2x
3y / 3 = 5 - 2x / 3
slope = -2 / 3
y intercept: (0, 5/3)
5/2, 0