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3 years ago

Simplify the expression: 3+ – 5(4+ – 3v)

Mathematics

1 answer:

Mandarinka [93]3 years ago

6 0

Answer:

The answer is

Step-by-step explanation:

3+ – 5(4+ – 3v) can be written as

3 - 5( 4 - 3v)

Expand and simplify

That's

3 - 20 + 15v

15v - 17

Hope this helps you

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Need some help thank u

expeople1 [14]

Answer:

c on edg

Step-by-step explanation:

4 0

3 years ago

What is the correct factorization of x^2 - 2x - 15?

iragen [17]

Answer:

option b

Step-by-step explanation:

${x}^{2} - 2x - 15$

${x}^{2} - 5x + 3x - 15 = 0$

$x(x - 5) + 3(x - 5) = 0$

$(x - 5)(x + 3) = 0$

x = -3 (Not possible)

x = 5

So, x = 5

8 0

2 years ago

Am i correct? What is the answer to the next one?

podryga [215]

Answer:

With base of 3: $3^{4}$

With base of 9: $9^{2}$

Step-by-step explanation:

Use 3 and 9 as the base of the power.

$3^{4} =81\\9^{2} =81$

8 0

3 years ago

*EASY 7TH GRADE MATH PICTURE INCLUDED*

Strike441 [17]

Answer:

Just switch out the 6 and 4 flip them out I guess

Step-by-step explanation:

4 0

2 years ago

What is the common ratio of the geometric sequence below? –2, 4, –8, 16, –32, ...

SOVA2 [1]

Answer:

The common ratio of the geometric sequence is:

$r=-2$

Step-by-step explanation:

A geometric sequence has a constant ratio 'r' and is defined by

$a_n=a_1\cdot r^{n-1}$

where

aₙ is the nth term

a₁ is the first term

r is the common ratio

Given the sequence

$-2,\:4,-8,\:16,\:-32,\:...$

Compute the ratios of all the adjacent terms: $r=\frac{a_n+1}{a_n}$

$\frac{4}{-2}=-2,\:\quad \frac{-8}{4}=-2,\:\quad \frac{16}{-8}=-2,\:\quad \frac{-32}{16}=-2$

The ratio of all the adjacent terms is the same and equal to

$r=-2$

Therefore, the common ratio of the geometric sequence is:

$r=-2$

5 0

2 years ago