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Citrus2011 [14]

3 years ago

12

PLEASE HELP ASAP!!!!!!!!!!!!

2 answers:

cestrela7 [59]3 years ago

7 0

Answer:

d

Step-by-step explanation:

Greeley [361]3 years ago

7 0

Answer: D

Step-by-step explanation: becasue i did it

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Please help with 1 & 2

yaroslaw [1]

First question:

I urge you to perform the division using the synthetic division method:

________________
-4 / 1 3 -6 -6 8
-4 4 8 -8
-----------------------
1 -1 -2 2 0

Note that there is no remainder. When this is the case, the divisor (here, that's -4) is a root of the given polynomial, and the value of that polynomial, g(-4), is 0.

If the remainder were not 0, then the remainder represents the value of the polynomial for that particular divisor. For example, if x = -3, the remainder is -28. We'd write that as g(-3) = -28.

But here, g(-4) = 0.

6 0

3 years ago

baherus [9]

Answer: see proof below

<u>Step-by-step explanation:</u>

Given: cos 330 = $\frac{\sqrt3}{2}$

Use the Double-Angle Identity: cos 2A = 2 cos² A - 1

$\text{Scratchwork:}\quad \bigg(\dfrac{\sqrt3 + 2}{2\sqrt2}\bigg)^2 = \dfrac{2\sqrt3 + 4}{8}$

Proof LHS → RHS:

LHS cos 165

Double-Angle: cos (2 · 165) = 2 cos² 165 - 1

⇒ cos 330 = 2 cos² 165 - 1

⇒ 2 cos² 165 = cos 330 + 1

Given: $2 \cos^2 165 = \dfrac{\sqrt3}{2} + 1$

$\rightarrow 2 \cos^2 165 = \dfrac{\sqrt3}{2} + \dfrac{2}{2}$

Divide by 2: $\cos^2 165 = \dfrac{\sqrt3+2}{4}$

$\rightarrow \cos^2 165 = \bigg(\dfrac{2}{2}\bigg)\dfrac{\sqrt3+2}{4}$

$\rightarrow \cos^2 165 = \dfrac{2\sqrt3+4}{8}$

Square root: $\sqrt{\cos^2 165} = \sqrt{\dfrac{4+2\sqrt3}{8}}$

Scratchwork: $\cos^2 165 = \bigg(\dfrac{\sqrt3+1}{2\sqrt2}\bigg)^2$

$\rightarrow \cos 165 = \pm \dfrac{\sqrt3+1}{2\sqrt2}$

Since cos 165 is in the 2nd Quadrant, the sign is NEGATIVE

$\rightarrow \cos 165 = - \dfrac{\sqrt3+1}{2\sqrt2}$

LHS = RHS $\checkmark$

4 0

3 years ago

Please help, need help on problem will mark BRAINLIEST AND 5 STARS

horsena [70]

Answer: positive, linear association

Step-by-step explanation: that is the answer, because the dots are rising up in a slope

5 0

2 years ago

Read 2 more answers

If r and s represent two numbers, write the following:

Tanzania [10]

Answer:

hope it helps. good day .in case of any question please ask.

4 0

2 years ago

Solve 29 < m^2+ 9/2<br> < 45

german

Answer:29m^2+

405/2

Step-by-step explanation:

4 0

3 years ago