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sleet_krkn [62]
3 years ago
13

( please help me )THIS SEEMS SIMPLE BUT CAN SOMEONE HELP!!!!!!!!! I WILL MARK BRAINLEST

Mathematics
1 answer:
Jet001 [13]3 years ago
5 0
Don't you just plug in the variables 8+(2×3)+(3×4)
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A community center is holding a raffle. The table below shows the number of tickets purchased and total price paid for three dif
Rom4ik [11]

Answer:

The answer would be C!

7 0
3 years ago
The sale price for a computer is $450. the original price was first discounted by 25% and then was discounted an additional 20%.
pishuonlain [190]
Sale price = $450
original price = 25%y
dicount = +20%

solution = $450 × 45%
= $202.5
= $652.5

i am a mathematics teacher. if anything to ask please pm me
3 0
3 years ago
What is the slope of the line that passes through these two points? (-3, 2) (4, 2)
Alik [6]

Answer: 0

Step-by-step explanation:

To find slope, I found that an easy way is the equation y2 - y1 over (divided by) x2 - x1

so for this, it would be:

\frac{2 - 2}{4-(-3)}

which is 0/7

0 divided by 7 is 0, so there is your answer

6 0
3 years ago
If
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
Aaron is reading a graph of equivalent ratios. If one of the ratios is represented as (6, 2), which could be another ratio?
evablogger [386]
There Are Unlimited Equivalent Ratios To This! For One, We Could Simplify This Ratio To 3,1.Another One Would Be 12,4. You See, It Can Be Any Ratio As Long As It Equals(Simplified) To 3/1. I Hope This Helps!
6 0
3 years ago
Read 2 more answers
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