3 years ago

The diameter of a circle is 14 ft. Find its circumference in terms of pi.

Mathematics

1 answer:

Ann [662]3 years ago

5 0

Answer:

43.98

Step By Step Explanation:

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Lydia graphed ΔXYZ at the coordinates X (0, −4), Y (2, −3), and Z (2, −6). She thinks ΔXYZ is a right triangle. Is Lydia's asser

katrin [286]

Answer:

Option (4)

Step-by-step explanation:

Vertices of the triangle are X(0, -4), Y(2, -3) and Z(2, -6).

Slope of XY ( $m_{1}$ ) = $\frac{y-y'}{x-x'}$

= $\frac{-3+4}{2-0}$

( $m_{1}$ ) = $\frac{1}{2}$

Similarly, slope of XZ ( $m_{2}$ ) = $\frac{-6+4}{2-0}$

( $m_{2}$ ) = (-1)

$m_{1}\times m_{2}=-\frac{1}{2}$

Which should be (-1) if XY and XZ are perpendicular to each other.

Now we can say that XY and XZ are not perpendicular.

Therefore, Lydia's assertion that ΔXYZ is a right triangle is not correct.

Option (4) will be the answer.

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2 years ago

Ifm_2 = 68°, what is the measure of angle 7? 1 2. 3 5 7

Oksana_A [137]

Answer:

∠7=22°

Step-by-step explanation:

∠2 and ∠7 are supplementary angles, meaning they add to 90°.

∠2+∠7=90°

substitute ∠2

68°+∠7=90°

∠7=22°

7 0

3 years ago

A research center poll showed that 76% of people believe that it is morally wrong to not report all income on tax returns. What

Tanya [424]

You would subtract 0.76 from 100 and your answer will be 99.24

6 0

3 years ago

What is the value of x in the diagram below?

dusya [7]

we know that

the two triangles in the figure are similar, because they have three equal angles

therefore

The ratio of the corresponding sides are equal

$\frac{x}{8}= \frac{18}{48} \\ \\x=(8*18)/48 \\ \\x=3\ units$

therefore

<u>the answer is the option C</u>

$3$

7 0

2 years ago

Read 2 more answers

The question says: Paula started reading a book and red 1/12 of the book on the first day. the next day, she read 1/3 of the boo

tester [92]

Answer:

Step-by-step explanation:

ℎ

$\frac{5}{12}$

ℎ ℎ

$\\ \frac{1}{12} + \frac{1}{3} = \frac{5}{12}$

4 0

2 years ago