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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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The polygons below are similar. Set up a proportion

m_a_m_a [10]

Answer:

Step-by-step explanation:

$\frac{18}{15}$ = $\frac{x}{35}$ ⇔ $\frac{6}{5}$ = $\frac{x}{35}$ ⇔ $\frac{6*7}{5*7}$ = $\frac{x}{35}$ ⇒ <em>x = 42</em>

4 0

3 years ago

Solve the equation 3x + 5y = 16 for y.

qaws [65]

Answer:

It's B. y = 16/5 - 3x/5

7 0

3 years ago

Read 2 more answers

Write a linear function f with f(2)=-2 and f(1)=1

docker41 [41]

Answer:

y = -3x + 4

Step-by-step explanation:

x y

0 4

1 1

2 -2

Going down 3 for every increase of x by 1, when x = 0, y = 4

7 0

3 years ago

Which System has the same solution as the system of equation shown

Yuliya22 [10]

Answer: B. 8x+3y=5

-8x - 4y= -6

Step-by-step explanation:

The given system of equations is expressed as

8x + 3y =5 - - - - - - - - -1

4x + 2y =3 - - - - - - - - - - 2

We would eliminate x by multiplying equation 1 by 4 and equation 2 by 8. It becomes

32x + 12y =20

32x + 16y = 24

Subtracting, it becomes

- 4y = - 4

y = - 4/ - 4

y = 1

Substituting y = 1 into equation 1. It becomes

8x + 3 × 1 =5

8x + 3 = 5 - 3 = 2

x = 2/8 = 1/4

Substituting x = 1/4 and y = 1 into the given options, it becomes

A. 8 × 1/4 + 3 × 1=5

2 + 3 = 5

- 8 × 1/4 +4 × 1 = 2

B. 8x+3y=5

-8x - 4y= -6

- 8 × 1/4 - 4 × 1 = -6

Therefore, the system of of equations that has the same solution as the given equation is

B. 8x+3y=5

-8x - 4y= -6

4 0

4 years ago

Find X using the Pythagorean Theorem

Natalija [7]

Answer:

x = 4.47

Step-by-step explanation:

Formula for hypotenuse:

$x =\sqrt{a^2+b^2}$

$x=\sqrt{4^2+2^2}$

$x=\sqrt{16+4}$

$x=\sqrt{20}$

$x=4.47$

8 0

3 years ago