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Explanation: the square root of 20 plus 2 equals approximately 6.47. This fits the number line
Hope this helps ;)
Related Questions
Here’s the Question that I have to do.
Answers
Answer:
d. 4,096
Step-by-step explanation:
i hope this helps :)
The half-life of a radioactive kind of neodymium is 11 days. If you start with 2,616 grams of it, how much will be left after 22 days?
Answers
Answer:
654 grams
Step-by-step explanation:
When you set up this equation you want the number of grams you start with, 2616, and the factor by which it is decreasing, which is half, or 1/2. Because the half life is 11 days, but you want to find the amount left over after 22 days, you can make 22/11 as the exponent on the 1/2. The equation should look like this : 2616(1/2)^22/11. With these kinds of equations you always want to multiply the starting value by the factor of increase/decrease, and raise that factor to the time eclipsed divided by the set time(like the 11 day half life).
Alex’s father is 5 times older than Alex and Alex is twice as old as his brother Nick who is 5 years old. How old is Alex's father?
years old
Answers
Answer:
50
Step-by-step explanation:
Alex is 10 years old because he is twice as old as his 5 year old brother. Therefore Alex's father is 50 years old because he is five times older than Alex.
What is the slope for this question?
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Answer:
[tex]-1[/tex]
Step-by-step explanation:
This is a really nice line that goes through a lot of grid points (where the lines intersect).
One easy way to find the slope is the phrase "rise over run." "Rise" is the name for vertical motion from point-to-point. "Run" is the name for horizontal motion from point-to-point.
Pick two easy points on the line, say (0, 0) and (1, -1).
If you go from (0, 0) to (1, -1), the rise is -1 -- because you went DOWN 1 unit.
The run is 1 -- because you went RIGHT 1 unit.
[tex]\frac{\text{rise}}{\text{run}} =\frac{-1}{1} =-1[/tex]
The slope is -1.
Cool fact: You'll get the same value if you use any two points on the line.
Determine the value of k so that the following system has an infinite number of solutions.
10x+ky=-8
-15x-6y=12
ILL DO A POINT GIVEAWAY IF SOMEONE ANSWERS THIS
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Please help me with this! Anything will be appreciated!! :)
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So when you apply this formula to these questions the answers should be:
#7. 3x4x2 = 24
#8. 2x4x1 = 8
#9. 3x4x2 = 24
#10. 4x3x1 = 12
I hope this helps!
. If three angle of a quadrilateral are in the ratio 2: 3: 5 and fourth angle is 130
find the angles
Answers
Answer:
Step-by-step explanation:
So let the angles be 2x,3x,5x
∠A + ∠B + ∠C + ∠C = 360
[Sum of all the angles of a quadrilateral ]
⇒2x+3x+5x+130=360
⇒10x = 360 -130
⇒x = 23
The angles are ,
∠A = 2x = 2×23 = 46
∠B = 3x = 3×23 = 69
∠C = 5x = 5×23=115
Let the angles be 2x,3x and 5x
We know that 2x+3x+5x+130=360
10x+130=360
10x=230
Therefore x=23°
2x=46°
3x=69°
5x=115°
Hope it helped! Have a nice day!!
i need help fast geometry is impossible
Answers
Answer:
D. 8Step-by-step explanation:
DC = AC = x is the radiusUsing the Pythagorean theorem, find x:
(x + 9)² - x² = 15²x² + 18x + 81 - x² = 22518x = 225 - 8118x = 144x = 144/18x = 8Ms. Carey grades 4 tests during her lunch. She grades 1/3 of the remainder after school. If she syill5has 16 test to grade after school, how many test are there?
Answers
Answer: 24 tests
Step-by-step explanation:
Ms. Carey graded 1/3 of the tests and still had 16 tests to go.
This means that the 16 tests represent the remaining proportion of the total number of tests:
= 1 - 1/3
= 2/3
2/3 of the total is equal to 16 tests. Assuming the total is x, the expression would be:
2/3x = 16
x = 16 ÷ 2/3
x = 16 * 3/2
x = 24 tests
least common multipul
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ANSWER:
From 2 to 10=
Explanation:
2/2/10
5/1/5
/1/1
PLEASE HELP NOW! I WILL MARK BRAINLIEST!
Answers
Answer:
17 units
Step-by-step explanation:
Given 2 congruent chords in the circle, then they are equidistant from the centre and perpendicular
There is a right triangle formed by legs 15 and 8, with radius r being the hypotenuse.
Using Pythagoras' identity in this right angle
r² = 15² + 8² = 225 + 64 = 289 ( take the square root of both sides )
r = [tex]\sqrt{289}[/tex] = 17
What are possible coordinates of point F if ΔDEF is congruent to ΔABC? (–1,4) (4,–1) (0,–1) (–1,0)
Answers
Answer:
(-1, 4)
Step-by-step explanation:
Hope this helps
Answer:
a
Step-by-step explanation:
I need help on these 4 questions. Please someone help me. Don’t put a link. Please help me.
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Answer:
Median: b
Altitude: c
Angle bisector: a
Perpendicular bisector: d
Step-by-step explanation:
This trapezium is drawn on a centimetre grid.
Find the area of the trapezium.
Answers
Answer:
20 cm^2
Step-by-step explanation:
A= 1/2 ×height
height = 4 cm
sides S1= 7cm
S2= 3cm
A= 1/2(7+3)4
=5×4
=> 20 cm
hope it helps..
have a great day!!
You work for an electric company and make a base pay of $200 every two weeks. You earn and extra $15 for each hour you work. Write a function to model this scenario using f(h) for the amount of money made and h for the hours of worked
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Answer:
a
Step-by-step explanation:
Fill in the blanks with the correct words:
An event that has probability O is said to be
An event that has probability 1 is said to be
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Answer:
Impossible; certain to happen
Step-by-step explanation:
Probability = 0 applies to an event which cannot happen. Example: roll a die and get a 7.
Probability = 1 applies to an even which is certain to occur. Example: roll a die and get a number less than 8.
Don drives his car 25 km east and then 312 km south. How far is he from his starting point? Round to the nearest tenth.
Answers
Which of the following describes the data set?
6, 7, 11, 14, 20, 30, 35
A. Minimum = 14
First quartile = 6
Median - 25
Third quartile = 35
Maximum = 35
B. Minimum = 35
First quartile = 11
Median = 25
Third quartile = 38
Maximum = 6
C. Minimum = 6
First quartile = 7
Median = 14
Third quartile = 30
Maximum = 35
D. Minimum = 6
First quartile = 35
Median = 25
Third quartile = 11
Maximum = 30
Answers
Without calculating anything else, you can look at the minimum and maximum values in your data set of 6 and 35. C is the only one that has those correct.
Just make sure that the numbers are in order before you analyze.
what is the value of d to the nearest hundredth
Answers
Step-by-step explanation:
This can be done by using the trignometric ratio of tangent in the ∆DEF . The two of its sides along 90° are 7.2 and d .
• In ∆ DEF :-
[tex]\tt\to tan42^o = \dfrac{EF}{ED}\\\\\tt\to tan42^o =\dfrac{d}{7.2}\\\\\tt\to 0.9 = \dfrac{d}{7.2}\\\\\tt\to d =7.2\times 0.9\\\\\tt\to\boxed{\orange{\tt d = 6.48 }}[/tex]
how would I answer this question?
Answers
Answer:
x = 16Step-by-step explanation:
Angle formed by two chords is the half of the sum of the intercepted arcs:
7x + 3 = 1/2(152 + 78)7x + 3 = 1157x = 112x = 112/7x = 16Lisa's garden has tulips and roses. Find the area of the part with tulips.
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Answer:
(5×7)-(2×3×2)=35-12
=23m²
Find the distance between points.
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Answer:
3
Step-by-step explanation:
What is the positive solution to this equation?
4x2 + 12x = 135
Answers
Answer:
9/2
Step-by-step explanation:
PLEASE HELP PELASE
For ΔABC, the measure in degrees of angles A, B, and C are 60, 55, and x + 20 respectively. What is the value of x?
A.
65
B.
45
C.
95
D.
25
Answers
Answer:
B.45
Step-by-step explanation:
A sum of all angles in a triangle is 180°55+60+x+20=18060+55=115
180-115=65
65-20=45
Answer: 45°
PLEASE HELP ASAPPPP THANK YOU IF YOU HELP
Answers
Answer: the area of the whole shape is 0.77. hope this helped.
Step-by-step explanation:
Which table shows a linear function?
Answers
If all the edge lengths of a rectangular prism are multiplied by a scale factor of 2, how does the volume change?
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Answer:
it's Answer is option B
Step-by-step explanation:
The new volume is 4 times the old volume
Elena can make 15 pizzas in 3 hours. If the number of pizzas is represented by p and time is represented by t, Write an equation that shows the total number of pizzas made in terms of time.
p = 5t
3t = 15p
p/t = 15
p = 1/5t
Answers
15 pizza's represents p and 3 hours represents t then it will be p divided by t.
Answer:
p = 5t
Step-by-step explanation:
We'll check by plugging in t = 3 and p has to equal 15
p = 5t ✅
p = 5(3)
p = 15
3t = 15p ❌
3(3) = 15p
9 = 15p
p = 15/9 = 5/3
p/t = 15 ❌
p/3 = 15
p = 45
p = 1/5t ❌
p = 1/5(3)
p = 3/5
A function is a relation in which every input has exactly one output. Which choice represents a function?
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The first three terms of a geometric sequence are as follows.
160, 80, 40
What is the next two terms of this sequence
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Answer:
20, 10
Step-by-step explanation:
This sequence is dividing by 2. Therefore, 40 divided by 2 is 20 and 20 divided by 2 is 10