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Diano4ka-milaya [45]
3 years ago
15

Hey I am on the phone I don’t want you guys going out for a while

Mathematics
2 answers:
tensa zangetsu [6.8K]3 years ago
7 0

Answer is

\frac{23}{4}

Marat540 [252]3 years ago
3 0

Answer:

the answer is 5 and 3/4

Step-by-step explanation:


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Evaluate 3x^2- 9 when x=-2
murzikaleks [220]

Answer:

3

Step-by-step explanation:

We know x = -2, so we can substitute -2 in for x

3x^2- 9

3*-2^2-9

Solve the exponent first (PEMDAS)

3*4-9

Multiply next

12-9

Subtract

3

6 0
3 years ago
Read 2 more answers
Find the value of the unknown side length for the given perimeter P. P = 14 m A. 3 m B. 4 m C. 14 m D. 25 m
koban [17]
If the perimeter is 14. Add 2,4, and 5 which is 11. Then find out how many meters does it take to get from 11 to 14. In this case the answer is 3
5 0
3 years ago
I need help with this question please. Just fo first question ignore wording below. Only apart of a homework practice
Roman55 [17]

Given the function:

f(x) = x³ + 3x² - 4x + 5

The graph of the function is (taken f:

According to the graph above, the maximum and minimum are 18.13 and 3.87, respectively

3 0
1 year ago
Simplify the expression cos x cot x+ sin x please select the best answer from the choices provided a.0, b.csc x, c. Tan x, d sec
expeople1 [14]

Answer:

cot x = \frac{cos x}{sin x}

cos x \frac{cos x}{sin x} + sin x

\frac{cos^2 x}{sin x} +sin x

sin^2 x + cos^2 x =1

Solving for cos^2 x we got cos^2 x =1 -sin^2 x and replacing this we got:

\frac{1-sin^2 x}{sin x} +sin x

\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x

csc x -sin x + sin x = csc x

And then the best option for this case would be:

b.csc x

Step-by-step explanation:

For this case we have the following expression given:

cos x cot x + sin x

We know from math properties that the definition for cot is cot x = \frac{cos x}{sin x}

If we use this definition we got:

cos x \frac{cos x}{sin x} + sin x

\frac{cos^2 x}{sin x} +sin x

Now we can use the following identity:

sin^2 x + cos^2 x =1

Solving for cos^2 x we got cos^2 x =1 -sin^2 x and replacing this we got:

\frac{1-sin^2 x}{sin x} +sin x

\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x

csc x -sin x + sin x = csc x

And then the best option for this case would be:

b.csc x

4 0
3 years ago
there are 18 black socks and 12 Navy socks in your drawer the room is dark and you cannot turn on the light what is the least nu
Natasha_Volkova [10]

Answer:

3/5

Step-by-step explanation:

To have the best chance of pulling a pair with the same color you should try to get a pair of black socks. There is a 3/5 chance of pulling a black sock so this means for every 5 socks you pull you get 3 black socks or 2 navy socks. Either way you will get a pair of socks with the same color. (Double check to make sure I'm correct)

4 0
3 years ago
Read 2 more answers
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