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Temka [501]
3 years ago
9

Help me find y.......

Mathematics
1 answer:
erastova [34]3 years ago
3 0

Answer:

  y ≈ 240.3 ft

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you that the relation between an angle and the sides adjacent and opposite is ...

  Tan = Opposite/Adjacent

In this triangle, the interior angle at lower right is the same as the one marked at upper left: 31°. y is the side opposite that angle, and 400 ft is the side adjacent. Then the relation is ...

  tan(31°) = y/(400 ft)

Multiplying by 400 ft gives ...

  y = (400 ft)·tan(31°) ≈ 240.3 ft

_____

The triangle interior angle at lower right and the angle marked 31° are "alternate interior angles" relative to the transversal marked x and the (parallel) horizontal lines in the figure. Alternate interior angles always have the same measure.

In geometry problems like this one, it means the angle of elevation (above the horizontal) is equal to the angle of depression (below the horizontal).

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Select all that are equivalent to the expression x^-1/3
rusak2 [61]

Answer:

1/∛x

Step-by-step explanation

Based on the therem of power of exponents;

a^-m = 1/a^m

Given the expression

x^-1/3

On comparison, you ca see that;

a = x

m = 1/3

Substitute into the general formula;

x^-1/3 = 1/a^1/3

Also, a^{\frac{1}{x} } = \sqrt[x]{a}

Hence;

\frac{1}{x^{\frac{1}{3} } } = \frac{1}{\sqrt[3]{x} }

This that the required expression is 1/∛x

6 0
3 years ago
(9,4) and (5,-3) find the slope please !!!!
Crank

Answer:

I think that the slope would = 1.75 I believe

Step-by-step explanation:

How to find slope (Other Example)

Identify the coordinates (x₁,y₁)and(x₂,y₂). We will use the formula to calculate the slope of the line passing through the points (3,8) and (-2, 10).

Input the values into the formula. This gives us (10 - 8)/(-2 - 3).

Subtract the values in parentheses to get 2/(-5).

Simplify the fraction to get the slope of -2/5.

Check your result using the slope calculator.

5 0
3 years ago
28 1/2 divided by 1/2
Alchen [17]

Answer: 57

Step-by-step explanation:

28 1/2 / 1/2

make 28 and 1/2 into 57/2

so now 57/2 divided by 1/2

the same as 57/2 times 2/1

multiply straight across

(57)(2)/(2)(1)

114/2

57

8 0
3 years ago
Read 2 more answers
The absolute value of a negative integer
mezya [45]
The absolute value of a negative integer is the positive number of the same integer. I hope that made sense.
5 0
3 years ago
Solve show step by step process <br><br> 2/3 x + 5/6 = 11/4 (x +2)
monitta

Answer:

-  \frac{56}{25} \: or - 2 \frac{6}{25}  \: or \:  - 2.24

5 0
3 years ago
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