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Aleksandr [31]
3 years ago
11

Which expression has a value of 15 when n = 7?

Mathematics
1 answer:
sweet [91]3 years ago
6 0
The answer is D.

Explanation- 28/7=4

19-4 =15
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According to the bar graph, what is the unit of measurement for the experiment?
sergiy2304 [10]

Answer: d or b

Step-by-step explanation:

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3 years ago
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The circumference of the inner circle is 66 ft. The distance between the inner circle and the outer circle is 44 ft. By how many
Ray Of Light [21]

Answer:

  276 4/7 ft

Step-by-step explanation:

Let r1 represent the radius of the inner circle. Then its circumference in feet is ...

  C = 2πr

  66 = 2π(r1)

If the radius of the outer circle is (r1 +44), then its circumference is ...

  C = 2π(r1 +44) = 2π(r1) +2π(44)

  C = 66 +88π

Then the difference in the circumferences is ...

  (66 +88π) - (66) = 88π

Using the given value of π, the difference in circumferences is ...

  (88 ft)(22/7) = 1936/7 ft = 276 4/7 ft

6 0
3 years ago
If the graph of the function y = x2 is reflected across the x-axis, what equation would correctly describe the new function
vaieri [72.5K]
To graph the absolute value graph the function y=f(x). Anything above the x- axis, stays above it.
6 0
3 years ago
Can someone solve these for me
tatuchka [14]

Answer:

0.66 and 33/50

62.5% and 5/8

0.75 and 3/4

120% and 1 1/5

0.005 and 1/200

3.75 and 375%

I hope that is correct and helps you! :)

Step-by-step explanation:

8 0
3 years ago
Calculate the length of the unknown side of this right angled triangle
azamat

Answer:

12.04

Step-by-step explanation:

Well to solve for the unknown side "c" we need to use the Pythagorean Theorem formula,

a^2 + b^2 = c^2

We already have a and b which are 8 and 9 so we plug them in.

(8)^2 + (9)^2 = c^2

64 + 81 = c^2

145 = c^2

c = 12.04 rounded to the nearest hundredth.

<em>Thus,</em>

<em>the unknown side is about 12.04.</em>

<em />

<em>Hope this helps :)</em>

8 0
3 years ago
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