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2 years ago

A storm caused a 9m hydro pole to lean over. The top of the pole is 7.5 m above the ground.

Mathematics

1 answer:

AleksandrR [38]2 years ago

6 0

Answer:

ur hyp would be 9m(cuz that's the length of the pole)

ur opp would be 7.5m

draw a right angle triangle(the 90 degrees on the left side)

the angle u need will be on the bottom left of the triangle.

now u need to use SOH cuz u got hyp and opp.

sin theta =opp/hyp

then u need to do:

sin‐1 opp/adj to find the angle

round to the nearest whole.

I'm not sure if this helped but yeah.

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Lin's bottle holds 3 1/4 cups of water. She drank 1 cup of water. What fraction of the water in the bottle did she drink?

DanielleElmas [232]

Answer:

30.76923077 or (approx: 30.77)

Step-by-step explanation:

-has 3 1/4 cups

-drinks 1 cup

(3 1/4-1=2 1/4)

3 1/4=100% (3 1/4 divided by 1=3.25)

1 =x% (100 divided by 3.25)

Approx 30.77%

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3 years ago

X/5 = 15 (Solving Linear Equations)

tiny-mole [99]

$\dfrac{x}{5}=15\\
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3 years ago

Pls help me complete this

snow_tiger [21]

Answer: The number of times a yellow cube will be drawn is 390 times.

Step-by-step explanation: Like the last question with the blue cubes, set up a ratio.

Since it is still 240 times drawn and we need to figure out how many times a yellow cube will be drawn from 1200 times, the top number only changes.

78/240 = x/1200

Multiply 78 and 1200, which is 93,600.

Divide that by 93,600, which is 390.

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2 years ago

The function f(x)=(25)x is shown on the coordinate plane.

andre [41]

It is a straight line

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3 years ago

Read 2 more answers

can someone help me understand this, please? For some reason my answer is correct but I need to understand how did I found the c

Morgarella [4.7K]

Answer with step-by-step explanation:

The way the question is worded, this actually shouldn't be correct. The correct answer should be $3:4$ .

Because the trapezoids are similar, we can find the ratio of their perimeters by actually just finding the ratio of their sides.

Why?

By definition, the corresponding sides of a polygon are in a constant proportion. The perimeter is simply the sum of all sides of the polygon. Since we're just adding the sides, the proportion will still be maintained.

Therefore, we'll just need to ratio of their corresponding sides. The only two corresponding sides that are marked are $\overline{RS}$ and $\overline{AB}$ .

The ratio of $\overline{RS}:\overline{AB}$ is $18:24\implies \boxed{3:4}$ .

The reason why it ideally should be $3:4$ and not $4:3$ is because the question states $RTSU\sim ABCD$ , which mentions $RSTU$ first, so our answer should follow this respective order. I believe you were marked right anyways because the specific order is not specified, but generally, you want to give your answer respectively by default.

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2 years ago