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patriot [66]
3 years ago
15

Which of the following is equivalent to cos x?

Mathematics
1 answer:
Otrada [13]3 years ago
3 0

ANSWER

D) sin Y

EXPLANATION

The given triangle is a right triangle.

This implies that that:

x + y = 90 \degree

Then we have

y= 90 - x

Recall that

\cos(x)  =  \sin(90 - x)

But

90 - x = y

When we do the substitution, we get,

\cos(x)  =  \sin(y)

Therefore cos(x) is a equivalent to sin(y).

The correct answer is D.

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Graph the data. then find and interpret the slope of the line through the points.
iVinArrow [24]

Answer:

You have to have an X and Y axis chart to do this problem

Step-by-step explanation:


8 0
3 years ago
Can Somebody Please Help Me With This!!
adelina 88 [10]

Answer:

I think A

Step-by-step explanation:

sorry if it is not correct hope it helps

8 0
2 years ago
Read 2 more answers
1. The ordered pair (-1, -1) is a solution of the system -4x + 2y = 2 and x + y = -2.
Nastasia [14]
1: (-1,-1) is (x, y) to see if it is a solution, you would just plug in x and y and see if the equation is true.
-4 (-1) + 2(-1) = 2
4 + -2 = 2
2 = 2 CORRECT
So... plug in x and y in the second equation to Make sure it works for that one too.
-1 + -1 = -2
-2 = -2 CORRECT
So, yes. (-1,-1) is a solution to both equations.
5 0
3 years ago
For any circle, which ratio is equal to the number n? Select all that apply. Plsss help me!!
barxatty [35]

Answer:

Options A-C-F

Step-by-step explanation:

we know that

<em>The circumference of a circle is equal to</em>

C=\pi D  or  C=2\pi r

where

D is the diameter and r is the radius

therefore

\pi =\frac{C}{D}  or \pi =\frac{C}{2r}

The number pi is the ratio circumference - diameter or is the ratio circumference - 2 times radius

<em>The area of the circle is equal to</em>

A=\pi r^{2}

therefore

The number pi is the ratio Area - radius squared

6 0
3 years ago
MRS.Bonnette's recipe for banana bread calls for 3 and one fourths cups of sugar. She wants to make 6.5 batches so that she has
densk [106]

Answer:

21/ \frac {1}{8}

Step-by-step explanation:

Since we're given that a batch requires 3 and one fourths cups of sugar, this is written as

3/ \frac {1}{4}

If she wants 6.5 batches then we just cross multiply

1 batch=3/ \frac {1}{4}

6.5 batches=x

X=6.5\times 3/ \frac {1}{4}

X=6/ \frac {1}{2}\times 3/ \frac {1}{4}

X=\frac {13}{2}\times \frac {13}{4}

X=\frac {169}{8}

X=21/ \frac {1}{8}

6 0
3 years ago
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