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2 years ago

BRAINLY!! 20 POINTS!!

Mathematics

2 answers:

mario62 [17]2 years ago

7 0

A. the mean remains the same.

For more info: brainly.com/question/4249234

Hope this helps love!

ddd [48]2 years ago

7 0

A the mean Remains the Same

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Write the following equation in slope-intercept form: 3x+4y=12

Sergeeva-Olga [200]

Hello, MissMisty here to help you.

• The answer •
Y = -3/4 + 3

Thanks! I hope it helped you, I'm glad I could help if it did. Have a good morning.

8 0

2 years ago

HELP CONGRUENT ANGLES

Gemiola [76]

$\dfrac{RP}{RQ}=\dfrac{LJ}{LK}\\
\dfrac{RP}{1.6}=\dfrac{5.4}{3.2}\\
3.2RP=8.64\\
RP=2.7$

6 0

3 years ago

Of the 6 people attending a seminar, 3 have red hair.

marin [14]

Answer:

1/2

Step-by-step explanation:

Total -- 6 people

3 people -- 3/6 = 1/2

Therefore, the answer is 1/2

3 0

2 years ago

I think it’s b but I’m not sure... please show work I need help ASAP

ohaa [14]

The answer is b. Great job! here ill show you the work.
15x +90 > 270
move constant to the right side and change its sign, like this:
15x>270-90
then subtract the numbers
15x>180
lastly, divide both sides by 15.
hope this helped!

5 0

3 years ago

1+secA/sec A = sin^2 A / 1-cos A

Fofino [41]

Answer: see proof below

Step-by-step explanation:

$\dfrac{1+\sec A}{\sec A}=\dfrac{\sin^2 A}{1-\cos A}$

Use the following Identities:

sec Ф = 1/cos Ф

cos² Ф + sin² Ф = 1

Proof LHS → RHS

$\text{LHS:}\qquad \qquad \dfrac{1+\sec A}{\sec A}$

$\text{Identity:}\qquad \qquad \dfrac{1+\frac{1}{\cos A}}{\frac{1}{\cos A}}$

$\text{Simplify:}\qquad \qquad \dfrac{\frac{\cos A+1}{\cos A}}{\frac{1}{\cos A}}\\\\\\.\qquad \qquad \qquad =\dfrac{1+\cos A}{1}$

$\text{Multiply:}\qquad \qquad \dfrac{1+\cos A}{1}\cdot \bigg(\dfrac{1-\cos A}{1-\cos A}\bigg)\\\\\\.\qquad \qquad \qquad =\dfrac{1-\cos^2 A}{1-\cos A}$

$\text{Identity:}\qquad \qquad \dfrac{\sin^2 A}{1-\cos A}$

$\text{LHS = RHS:}\quad \dfrac{\sin^2 A}{1-\cos A}=\dfrac{\sin^2 A}{1-\cos A}\quad \checkmark$

3 0

3 years ago