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KengaRu [80]
4 years ago
8

If f(x) = 3x 7, what is f(-2)? a. -2 b. 13 c. 1 d. -1

Mathematics
1 answer:
MakcuM [25]4 years ago
7 0
C. 1, if that its +7
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Which question is statistical?
Stella [2.4K]
I thinks its B




p.s. spread le cheese ⌂
4 0
3 years ago
What is 14.99% of 2000$?
Damm [24]
14.99% of 2000 is 299.80

Given:
whole amount = 2,000
percentage of the part = 14.99%

find the value of the part.

We simply multiply 14.99% to the whole of 2,000 to get the corresponding value of the part.

2,000 x 14.99/100 = 299.80

To check:
299.80 / 2,000 = 0.1499 x 100% = 14.99%

299.80/0.1499 = 2,000
8 0
3 years ago
What is the order of rotational symmetry for the figure
vredina [299]

Answer:

4

Step-by-step explanation:

First of all we will define rotational symmetry.

Rotational symmetry is when a shape looks the same after some rotation or less than one rotation.

The order of rotational symmetry is how many times it matches the original shape during the rotation.

So for the given shape, we can observe that the shape has four same type of sides. The shape in rotation will be like original shape 4 times in a complete rotation. So the order of symmetry is 4 ..

6 0
3 years ago
D · 24 = -12<br> What does d equal?
Darya [45]

Answer: d=-1/2

<u>Move all terms to the left</u>

<u></u>d*24-(-12)=0<u></u>

<u></u>

<u>Add all the numbers together, and all the variables</u>

<u></u>d*24+12=0<u></u>

<u></u>

<u>Multiply elements</u>

<u></u>24d+12=0<u></u>

<u></u>

<u>Move all terms containing d to the left, all other terms to the right</u>

<u></u>24d=-12\\-12/24\\d=-1/2<u></u>

4 0
4 years ago
Read 2 more answers
A hospital needs 40 L of a 10% solution of
Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

i didnt exactly answer this but i found someone who did

(pasted)  i still hope it helps

Let x and (40L-x) represent the 20% and 4% solutions respectively

Mixing the 20% and 1%  to form 40L of 15% solution

.20x + .04(40L-x) = .15*40L

             .16x = .11*40L

                x = .11*40L/.16

                x = 27.5L, the amount of the 20% solution.  

                    12.5L,the amount of the 4% solution  (40L - 27.5L)

CHECKING our Answer

.20*27.5L + .04*12.5L = 5.5L + .5L = 6L = .15*40L

Which tells us incidentally there is 6L of disinfectant in the final solution.

7 0
3 years ago
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