All categories

3 years ago

Use the inverse cosine to find the measure of angle Q.

Mathematics

1 answer:

Rom4ik [11]3 years ago

4 0

Answer:

∠ Q ≈ 53.1°

Step-by-step explanation:

cos Q = $\frac{adjacent}{hypotenuse}$ = $\frac{QS}{QR}$ = $\frac{6}{10}$ , then

∠ Q = $cos^{-1}$ ( $\frac{6}{10}$ ) ≈ 53.1° ( to the nearest tenth )

You might be interested in

What is the slope of y=5x – 1?

Mamont248 [21]

Answer:

The slope is 5.

Step-by-step explanation:

The formula is y=mx+b

y=5x-1

m is the slope in the formula

8 0

3 years ago

I need help on #10. very confused

RideAnS [48]

Step-by-step explanation:

$\displaystyle f'(x) = \lim_{h \to 0} \dfrac{f(x + h) - f(x)}{h}$

$\:\:\:\:\:\displaystyle = \lim_{h \to 0} \dfrac{(x+h)^2 -7 -(x^2 - 7)}{h}$

$\:\:\:\:\: \displaystyle= \lim_{h \to 0} \dfrac{(x^2 +2hx + h^2 -7) - (x^2 -7)}{h}$

$\:\:\:\:\: \displaystyle= \lim_{h \to 0} \dfrac{2hx + h^2}{h}$

$\:\:\:\:\: \displaystyle= \lim_{h \to 0} (2x +h)$

$\:\:\:\:\: \displaystyle= 2x$

3 0

3 years ago

Solve for d<br> Can you pls help me?

Georgia [21]

The answer to this question would be 3d-2=31 and d=11

3 0

2 years ago

Find the value of x. PLEASE HELP!!!!

Diano4ka-milaya [45]

Answer:

Step-by-step explanation:

Because of the right angle (90 deg) in red, and the horizontal line on the bottom axis,

we know that :

49 + (1+5x) = 90

solving for x delivers x=8

4 0

3 years ago

6x-14=2-10x what is the x

malfutka [58]

Answer:

x=1

Step-by-step explanation:

6x-14=2-10x

First step is to add 10x to each side

6x+10x-14=2-10x+10x

16x-14=2

Now add 14 to each side

16x-14+14=2+14

16x=16

Divide each side by 16 to isolate x

16x/16 =16/16

x =1

8 0

3 years ago

Read 2 more answers