3 years ago

4th grade math help Please explain how to get answer

Mathematics

1 answer:

Anestetic [448]3 years ago

3 0

Do 51×5 and you will get the answer 255

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2 years ago

The diagram below shows the dimensions of a triangular park built in a new housing development. Two side lengths and one angle m

evablogger [386]

ANSWER

$x = 50.5 \degree$

EXPLANATION

We use the sine rule for solving triangles.

This is given by the formula,

$\frac{ \sin(A) }{a} = \frac{ \sin(B) }{b} = \frac{ \sin(C) }{c}$

From the triangle,

$\frac{ \sin(x) }{60} = \frac{ \sin(40) }{50}$

We multiply both sides of the equation by 60 to get,

$sin(x) = \frac{ 60\sin(40 \degree) }{50}$

$sin(x) = 0.7713$

We solve for x to obtain,

$x = arcsin(0.7713)$

$x = 50.475$

To the nearest tenth, we round to one decimal place to get,

$x = 50.5 \degree$

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Ben plays basketball 6 times every 3 weeks. At this rate how many times does he play basketball in 10 weeks ?

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Ben will play 18times

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Read 2 more answers

A community organizes a phone tree in order to alert each family of emergencies. In the first stage, one person calls five famil

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Answer: It will take 7 stages for all 19,530 families to be called.

In the first stage, only 5 families are called.

In the second stage, we would have 5 x 5 = 25 families being called.

In the third stage, we would have 5 x 5 x 5 = 125 families being called.
We can use exponents to finish the list and see when our goal is reached.

4th stage: 5^4 = 625

5th stage: 5^5 = 3125

6th stage: 5^6 = 15625

7th stage: 5^7 = 78,125

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A quadrilateral is reflected over the y-axis. Which of the following statements about the coordinates of the image are true?

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If it’s only reflected over the y axis then only the x values change

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