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3 years ago

WILL GIVE BRAINLIEST!! FINALS!

1 answer:

3 0

Factor completely x³ + 6x² - 3x – 18
$- 6 + 6( - 6)^{2} - 3( - 6) - 18 \\ - 6 +6 \times 6 ^{2} + 18 - 18 \\ - 6 + 6 ^{3} + 18 - 18 \\ - 6 + 216 \\ 210$
with a root of x = -6

the answer is 210

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Work out the size of angle X. 50° 120°

Lana71 [14]

70. 180-120=60, and 180-60+50=70

3 0

3 years ago

What is x if x/3 + x/2=5

Tamiku [17]

you have to simplify it

then isolate the variable

then you will get x=6

6 0

4 years ago

Find Four Numbers that form a geometric progression such that the second term is less than the first by 35, and the third term i

Olegator [25]

Answer:

-35/3, -140/3, - 560/3, -2240/3
7, -28, 112, - 448

Step-by-step explanation:

The terms are:

a₁, a₂, a₃, a₄

Given:

a₁ = a₂ + 35
a₃ = a₄ + 560

Use the nth term formula:

a₂ = a₁r
a₃ = a₁r²
a₄ = a₁r³

Substitute:

a₁ = a₁r + 35 ⇒ a₁(1 - r) = 35
a₁r² = a₁r³ + 560 ⇒ a₁(1 - r)r² = 560

Divide the second equation by the first:

r² = 560/35
r² = 16
r = √16
r = ± 4

Use the first equation to find the first term:

a₁( 1 ± 4) = 35
1. a₁ = 35/-3 = -35/3
2. a₁ = 35/5 = 7

We have two sequences:

r = 4

-35/3, -140/3, - 560/3, -2240/3

r = -4

7, -28, 112, - 448

8 0

3 years ago

If a necklace was marked up to 400% and was originally $100 what was the original price

Dafna1 [17]

Well if the number is 100 dollars and it increases by four hundred percent it now costs 400 dollars. But if it was 100 dollars after the increase the original price was 25 dollars.

3 0

4 years ago

you had $4,982 in your checking account. then you wrote 4 checks for $786 each. how much money is left in your bank account

quester [9]

Answer:

$1826 left in the account.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers