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2 years ago

Which function is an even function?

Mathematics

1 answer:

SOVA2 [1]2 years ago

3 0

C because y=3cos2 (31) -cost

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The third one ^^

raketka [301]

I hate math so much

3 0

3 years ago

Two times a number plus four is 22. What is the number?

lions [1.4K]

Work out the equation backward.
22-4=18
18/2=9
The original number was 9

5 0

4 years ago

Read 2 more answers

(4m+3)(m+2) expand each of the following algebraic expression

Alina [70]

Answer:

4m² + 11m + 6

Step-by-step explanation:

Use foil to expand this value.

(4m+3)(m+2)

Multiply the first terms in the two brackets.

Then multiply the two outer terms.

Followed by multiplying the inner terms.

Finally multiply the last terms

= (4m+3)(m+2)

4m² + 8m + 3m + 6

4m² + 11m + 6

8 0

3 years ago

The graphs below have the same shape. What is the equation of the blue graph?

vodka [1.7K]

Answer:

Step-by-step explanation:

8 0

3 years ago

In Ms.Khans class,22 out of 25 students hand in their projects on time. What percent of the class hand in their projects on time

Nikitich [7]

88 % students of the class hand in their projects on time

Solution:

Given that, Ms.Khans class, 22 out of 25 students hand in their projects on time

Total number students = 25

Students hand in their projects on time = 22

To find: percent of the class hand in their projects on time

$\text{ percent of class hand in time } = \frac{\text{Students hand in projects on time}}{\text{total students}} \times 100$

Substituting the values, we get

$\text{ percent of class hand in time } = \frac{22}{25} \times 100\\\\\text{ percent of class hand in time } = 0.88 \times 100\\\\\text{ percent of class hand in time } = 88$

Thus 88 % students of the class hand in their projects on time

5 0

3 years ago