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3 years ago

If sin A = 3/4, then the value of tan A

Mathematics

1 answer:

Schach [20]3 years ago

8 0

$sinA=\frac{3}{4}$ ⇒ ∠A ≈ 49°

tanA ≈ 1.15

ok done. Thank to me :>

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Write the equation of the circle with center of 10-2 and a radius of 7

True [87]

Answer:

(x-10)^2 + (y-2)^2 = 49

Step-by-step explanation:

I'm assuming that 10-2 means (10,2)

Equation of circle:

(x-a)^2 + (y-b)^2 = r^2

Plugging in the values that we know:

(x-10)^2 + (y-2)^2 = 7^2

(x-10)^2 + (y-2)^2 = 49

Hope this helps!

6 0

3 years ago

Solve for x<br> 1/4 + 1/2 + x = -3/4

Bad White [126]

Answer:

x = -3/2

Step-by-step explanation:

Lets first multiply the entire equation by 4 to get rid of the fractions.

1+2+4x = -3

3+4x = -3

4x = -6

x = -6/4

x = -3/2

8 0

3 years ago

Read 2 more answers

I can't figure this one out.

Mkey [24]

Answer:

Option D. tan 225° is the correct answer.

Step-by-step explanation:

As we know $tan2A = \frac{2tanA}{1-tanx^{2}A }$

Given in the question angle A = 112.5°

Hence the formula becomes as

$tan2(112.5)=\frac{2tan( 112.5)}{1-tan^{2}(112.5) }$

Therefore its a formula of tan2(112.5) = tan 225°

Option D. is the correct answer.

3 0

3 years ago

If you understand similar figures you will get this because I don't

alekssr [168]

Answer:

I think its 3 but im not sure

Step-by-step explanation:

2x-1 you would do the opposite so you would add 1 to both sides. That would cancel the -1. Which leaves you with 3x

7 0

3 years ago

Write f(x)=5 -(x – 4)2 in the form f(x)= ax+bx+c.

horsena [70]

Answer:

$f(x) = 5 - (x - 4)^2$ .

Step-by-step explanation:

$f(x) = 5 - (x - 4)^2$

$f(x) = 5 - (x-4)*(x-4)$

$f(x) = 5 - (x^2 - 4x - 4x + 16)$

$f(x) = 5 - (x^2 - 8x + 16)$

$f(x) = 5 - x^2 + 8x - 16$

$f(x) = -x^2 + 8x - 11$ .

Hope this helps!

4 0

3 years ago