2 years ago

I need the answers for finding functions worksheet!

Mathematics

1 answer:

yaroslaw [1]2 years ago

4 0

Answer:

1. C 6. B

2. D 7. B

3. B 8. B

4. D 9. B

5. D 10. A

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If the sin 90 = 1 , then the cos 0 =

fenix001 [56]

Rule of trigonometric functions:-

sin a = cos(90 - a)

Here a = 90°.

sin 90 = cos (90 - 90)

1 = cos 0.

cos 0 = 1.

So the cos 0 = 1.

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3 years ago

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Find the slope of a line perpendicular to each given line.<br> y = 1/4x - 4

Valentin [98]

y=4

4x−4

Step-by-step explanation:

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3 years ago

Evaluate -4² please hurry

alexgriva [62]

squaring something multiplies it by itself. -4^2 = -4*-4 = 16

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Determine the value of $a$. [asy] pair w=(0,4); pair x=(0,0); pair y=(4,0); pair z=y+7/sqrt(2)*(1,1); dot(w); dot(x); dot(y); do

grandymaker [24]

Answer:

a=7

Step-by-step explanation:

The image is rendered and attached below.

Triangle WXY is an Isosceles right triangle, since WX=XY.

First, we determine the length of WY using Pythagoras Theorem.

$WY=\sqrt{4^2+4^2}\\WY=\sqrt{32}$

Since triangle WXY is Isosceles, $\angle XYW=45^\circ$

$\angle XYZ=\angle XYW+\angle WYZ\\135^\circ=45^\circ+\angle WYZ\\\angle WYZ=135^\circ-45^\circ=90^\circ$

Therefore:

Triangle WYZ is a right triangle with WZ as the hypothenuse.

Applying Pythagoras Theorem

$WZ^2=WY^2+YZ^2\\9^2=(\sqrt{32})^2+a^2\\a^2=81-32\\a^2=49\\a^2=7^2\\$Therefore: a=7$

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Yuri [45]

Answer: 32/9 or 3.555

Step-by-step explanation:

8/(11/2-13/4)=32/9

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