I think you mean
sqrt x + 5 = sqrt (x+45)

if you plug in x = 4,
left side = sqrt 4 + 5 = 2+ 5 = 7

right side = sqrt (4+45) = sqrt 49 = 7

so the answer is x = 4 :)

7 0

3 years ago

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Sahil is buying a graphing

Ghella [55]

I think that is D cus you take 10 off

4 0

3 years ago

Sines/ Cosines topic. In the triangle below round to the nearest tenth. Include explanation if possinle

vredina [299]

By the law of sines,

$\dfrac{\sin90^\circ}{17}=\dfrac{\sin y^\circ}9$

$\implies\sin y^\circ=\dfrac9{17}$

(since $\sin90^\circ=1$ )

$\implies y=\sin^{-1}\left(\dfrac9{17}\right)\approx32.0$

4 0

3 years ago

Suppose x + y = 13 and the value of x increases by 4. If their sim remain the same, what must happen to the value of y?

Oksi-84 [34.3K]

The value of y would decrease if x increases and the sum stays the same.

6 0

3 years ago

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