3 years ago

Match the situation to the correct expression. The sum of n and 40

Mathematics

1 answer:

lisov135 [29]3 years ago

3 0

The correct expression would be n+40

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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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3 years ago

Which of the following describes the diagonals of a square?

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Answer:

ALL OF THE ANSWERS ARE CORRECT .

HOPE IT HELP YOU.

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Vika [28.1K]

The percent of change would be -33.3% which would then equal a 33.3% decrease (when decimal is rounded)

what I did was turn 1/4 and 1/2 into decimals to make it easier to solve

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the value of 2 in 0.812 is 2 thousandths/0.002

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9x squared -25 a difference of squares

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