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2 years ago

HELLO AND HELP ASAP PLZ HELP

Mathematics

1 answer:

Anit [1.1K]2 years ago

3 0

21+31=52
180-52=128
So the answer is A

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Simplify cos^2 A/1+sin A

Stels [109]

Answer:

$\displaystyle \frac{\cos^2(A)}{1+\sin(A)}=1-\sin(A)$

Step-by-step explanation:

We want to simplify:

$\displaystyle \frac{\cos^2(A)}{1+\sin(A)}$

Recall the Pythagorean Identity:

$\sin^2(A)+\cos^2(A)=1$

So:

$\cos^2(A)=1-\sin^2(A)$

Substitute:

$\displaystyle =\frac{1-\sin^2(A)}{1+\sin(A)}$

Factor. We can use the difference of two squares pattern:

$\displaystyle =\frac{\left(1-\sin(A))(1+\sin(A))}{1+\sin(A)}$

Cancel. Hence:

$\displaystyle \frac{\cos^2(A)}{1+\sin(A)}=1-\sin(A)$

7 0

2 years ago

Need help ASAP! Directions and problem in the picture;) Will give brainliest

iren2701 [21]

Answer:

x = 24 , y = 19

Step-by-step explanation:

The opposite sides of a parallelogram are congruent , then

2x - 8 = x + 16 ( subtract x from both sides )

x - 8 = 16 ( add 8 to both sides )

x = 24

and

2y = y + 19 ( subtract y from both sides )

y = 19

3 0

2 years ago

EXPERTS/ACE/GENIUSES/TRUSTED HELPERS HELPP ME

Mekhanik [1.2K]

B will be your best answer

The amount of points increase ~20 points each hour

just look at the point placements, and the amount each point is worth

also note that the bottom is by half hours, not hours

hope this helps

3 0

3 years ago

Read 2 more answers

. Two rectangles have a ratio of similarity of 4/7. If one side of the small rectangle is 12m long, how long is the same side of

Akimi4 [234]

Answer:

For two rectangles to be similar, their sides have to be proportional (form equal ratios). The ratio of the two longer sides should equal the ratio of the two shorter sides.

Step-by-step explanation:

3 0

3 years ago

Two mechanics worked on a car. The first mechanic worked for 5 hours, and the second mechanic worked for 15 hours. Together they

AleksAgata [21]

6x+8y=1,200and 150adults

4 0

3 years ago