3 years ago

This is so important

Mathematics

1 answer:

Artist 52 [7]3 years ago

7 0

7/8 divided by 1/4 (or 2/8) = 3 1/8

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Simplify 2x^2-1+4x^2-5

alekssr [168]

Answer:

6x^2-6

Step-by-step explanation: algebra

8 0

3 years ago

Which, if any, of the following is incorrect?

postnew [5]

B is the answe i think

3 0

3 years ago

Calculate cos theta to two decimal places

Ghella [55]

Answer:

B. 0.72

Step-by-step explanation:

In order to find the answer we need to use the following formula:

$a^2=b^2+c^2-2bc*cos(\theta)$ where:

a, b, c are the length of the sides and $\theta$ the angle, so:

$7^2=10^2+8^2-(2*10*8)*cos(\theta)$

$49=164-(160)*cos(\theta)$

$cos(\theta)=0.71875$

In conclusion, $cos(\theta)=0.72$ , so the answer is B.

4 0

3 years ago

PLEASE HELP ILL MARK BRAINIEST

Pachacha [2.7K]

Answer:

Answer:

P(t) = 10t - 400

Step-by-step explanation:

Selling price of each ticket = $10

Cost of setting up the dance= $400

Profit = Revenue - cost

Revenue = price × quantity

Revenue that will maximize profit = 10t

where t= quantity of tickets that maximises profits

Cost = $400

Profit(t) = Revenue - cost

P(t)= 10t - 400

Step-by-step explanation:

Hope this helps, have a great day!

6 0

3 years ago

Which of the following proportions is true?<br> 4/16=2/14 15/20=24/36 12/15=47/50 16/36=12/27

KengaRu [80]

The correct proportion is 16/36=12/27

4 0

4 years ago

This is so important​

This is so important