5

1 answer:

3 0

Answer: C

Explanation

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dexar [7]

Peter=x
Jane=3x
3x-x=12
X=6

3 0

3 years ago

stira [4]

V= 15 steps are down below

6 0

3 years ago

tresset_1 [31]

ΔABC and ΔCBD are similar. Therefore we have the proportion:

$\dfrac{AB}{BC}=\dfrac{BC}{BD}\\\\AB=6;\ BC=x;\ BD=2$

Substitute:

$\dfrac{6}{x}=\dfrac{x}{2}$ <em>cross multiply</em>

$(x)(x)=(6)(2)\\\\x^2=12\to x=\sqrt{12}\\\\x=\sqrt{4\cdot3}\\\\x=\sqrt4\cdot\sqrt3\\\\\boxed{x=2\sqrt3}$

6 0

3 years ago

ivolga24 [154]

Y=1x because if you draw it on the line you’ll see the linear variation

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3 years ago

tigry1 [53]

Answer: 15

Step-by-step explanation:

We know that sin 75 degrees = 0.90659...

Now, to find cos: cos-1 (0.90659) = 15

So the answer is 15.

7 0

3 years ago