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2 years ago

Factor the expression: 8m - 20n

Mathematics

2 answers:

puteri [66]2 years ago

6 0

Answer: 11

Step-by-step explanation:

erastovalidia [21]2 years ago

6 0

Answer:

this operation is simple the result will be 12n

Step-by-step explanation:

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Evita paid 2,408.91 in interest what was the selling price of the car

cupoosta [38]

Answer:

19,000.00

Step-by-step explanation:

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3 years ago

Sasha is making a quilt. Her pattern requires that 1/4 of the pieces of cloth be green. She has 188 pieces of green cloth. If sh

butalik [34]

Answer:

The answer should be 752

Step-by-step explanation:

You turn 1/4 into a decimal and you get 0.25

Divide 188 by .25 and you should get that answer

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3 years ago

Solve the system of equations.

slavikrds [6]

A..... (im pretty sure)

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3 years ago

What is the value of k when the expression 3(7 + x) is equivalent 3(x + k)

Free_Kalibri [48]

Answer:7

Step-by-step explanation:

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3 years ago

Which of the following are identities? Check all that apply

Natasha2012 [34]

Answer:

A, C

Step-by-step explanation:

Actually, those questions require us to develop those equations to derive into trigonometrical equations so that we can unveil them or not. Doing it only two alternatives, the other ones will not result in Trigonometrical Identities.

Examining

A) True

$\frac{1-tan^{2}x}{2tanx} =\frac{1}{tan2x} \\ \frac{1-tan^{2}x}{2tanx} =\frac{1}{\frac{2tanx}{1-tan^{2}x}}\\ tan2x=\frac{1-tan^{2}x}{2tanx}$

Double angle $tan2\alpha =\frac{1 -tan^{2}\alpha }{2tan\alpha}$

B) False,

No further development towards a Trig Identity

C) True

Double Angle Sine Formula $sin2\alpha =2sin\alpha *cos\alpha$

$sin(8x)=2sin(4x)cos(4x)\\2sin(4x)cos(4x)=2sin(4x)cos(4x)$

D) False No further development towards a Trig Identity

$[sin(x)-cos(x)]^{2} =1+sin(2x)\\ sin^{2} (x)-2sin(x)cos(x)+cos^{2}x=1+2sinxcosx\\ \\sin^{2} (x)+cos^{2}x=1+4sin(x)cos(x)$

7 0

3 years ago

Read 2 more answers