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3 years ago

Find the circumference of each circle. Use 3.14 for the value of π . Round answer to the nearest tenth.

Mathematics

2 answers:

kvv77 [185]3 years ago

8 0

Answer:

$C=9.4\pi$ meters

Step-by-step explanation:

Recall to find the circumference of a circle the formula is $C=\pi d$ or $C=2\pi r$ .

We start by substituting 4.7m for r in the second circumference formula.

$C=2\pi r\\C=2\pi (4.7)\\C=9.4\pi$ . We input this value of r into the area formula.

makvit [3.9K]3 years ago

4 0

Answer:

its C.

Step-by-step explanation:

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In the figure, Line a is parallel to line b. Name the angles congruent to angle 3.

alekssr [168]

Answer:

angles 1, 5, 7

Step-by-step explanation:

∡1 = ∡3 reason: they are vertical angles

∡7 = ∡3 reason: they are corresponding angles

∡5 = ∡3 reason: they are same-side interior angles

3 0

3 years ago

I dont know how to solve these

Ne4ueva [31]

Answer:

137°

Step-by-step explanation:

So, both are equal to each other due to them being the same degree angle.

5x+7=8x-71

subtract 5x on both sides

7=3x-71

add 71 to both sides

77=3x

divide both sides by 3

77/3=x

x equals about 26

insert x into the problems

[5(26)+7]°

this equals 137°

[8(26)-71]°

this equals 137°

7 0

4 years ago

Find the value of 14/8 + 15/12

n200080 [17]

Answer:

The value of $\frac{14}{8} + \frac{15}{12}$ = 3

Step-by-step explanation:

Explanation

Given $\frac{14}{8} + \frac{15}{12}$

L.C.M 8 , 12 is 24

$\frac{14}{8} + \frac{15}{12} = \frac{14 X 3 + 15 X 2}{24}$

= $\frac{42 +30}{24} = \frac{72}{24} = 3$

Final answer:-

The value of $\frac{14}{8} + \frac{15}{12}$ = 3

5 0

3 years ago

nika2105 [10]

You have to use a calculator for both of the exact values using sin^-1 or Cos^-1 you can then times those together, with the final part the answer is sin 240 as sin(A-B) = sinAcosB-CosASinB

6 0

3 years ago

The temperature on Monday was 5 Degrees. The temperature on Thursday was - 8 degrees. Was the overall change in the temperature

Montano1993 [528]

Answer:

Negative change

Step-by-step explanation:

Given

$Monday\ Temperature = 5\ deg$

$Thursday\ Temperature = -8\ deg$

First, we need to calculate the overall change in temperature

This is calculated by subtracting the initial temperature from the final temperature

$Overall\ Change = Thursday\ Temperature - Monday\ Temperature$

$Overall\ Change = -8\ deg - 5\ deg$

$Overall\ Change = -13\ deg$

The overall change shows a negative change in the temperature.

This is as a result of a drop in temperature from Monday to Thursday

6 0

4 years ago