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3 years ago

The circumference of Earth is 40,075 kilometers. What would be a reasonable estimate for the circumference of Earth?

1 answer:

6 0

40,075 kilometers?

If you're going for a very rough estimate without knowing that the circumference is 40,075, I'd say to go for 40,000 but I'm not really sure what you're asking.

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Which formula would be used to find the measure of angle 1?

ankoles [38]

Answer:

I believe its the 4th option on edge...

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Find a point on the y-axis that is equidistant from the points (8, −8) and (1, 1).

artcher [175]

$\text{We know that any point on the y-axis is of the form (0, y),}\\
\text{because on y-axis we have x=0.}\\
\\
\text{So let (0, y) be the point on the y-axis that is equidistance from}\\
\text{the points }(8,-8) \text{ and }(1,1)\\
\\
\text{so using the distance formula, we have}\\
\\
\text{Distance between (0, y) and }(8,-8)=\text{Distance between (0,y) and }(1,1)\\
\\
\Rightarrow \sqrt{(0-8)^2+(y-(-8))^2}=\sqrt{(0-1)^2+(y-1)^2}$

$\Rightarrow \sqrt{64+(y+8)^2}=\sqrt{1+(y-1)^2}\\
\\
\text{Squaring both sides, we get}\\
\\
(\sqrt{64+(y+8)^2})^2=(\sqrt{1+(y-1)^2})^2\\
\\
\Rightarrow 64+(y+8)^2=1+(y-1)^2\\
\\
\Rightarrow 64+(y^2+16y+64)=1+(y^2-2y+1)\\
\\
\Rightarrow y^2+16y+128=y^2-2y+2\\
\\
\Rightarrow y^2+16y-y^2+2y=2-128\\
\\
\Rightarrow 18y=-126\\
\\
\Rightarrow y=\frac{-126}{18}\\
\\
\Rightarrow y=-7$

So the point on the y-axis that is equidistant from the points (8,-8) and (1,1) is: (0,-7)

3 0

4 years ago

Pls help with this problem

RoseWind [281]

<h3>Answer: 26 cm</h3>

====================================================

Explanation:

Refer to the diagram below. The rectangle MATH has the diagonal MT that cuts the rectangle into two identical right triangles.

We then use the pythagorean theorem to find the length of the hypotenuse MT.

a^2 + b^2 = c^2

10^2 + 24^2 = c^2

100 + 576 = c^2

676 = c^2

c^2 = 676

c = sqrt(676)

c = 26

Segment MT is 26 cm long.

This applies to the other diagonal AH as well.

5 0

3 years ago

What is the value of 17.38-19.26+14.2

Roman55 [17]

The value of this is 12.32

5 0

3 years ago

Winnie poured 14 cups of water into a rectangular container measuring 13 inches by 7 inches by 6 centimeters.

Dmitriy789 [7]

Part A: Max volume = Volume of container = 13 in x 7 in x 6 in = 546 in^3
Part B: 1 cup = 14.4375 in^3
14 cups = 14.4375 in^3 x 7 = 202.125 in^3
Part C: Height of water = (202.125 in^3)/(13 in x 7 in) = 2.22 in.

3 0

4 years ago