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aliya0001 [1]
4 years ago
12

Any help on how to solve this would be great

Mathematics
1 answer:
MatroZZZ [7]4 years ago
6 0

Answer:

Its A

To Simplify you have to think of it as (7 + i) / (2 - (2 * i))

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What is the percent decrease from 120% to 90%
boyakko [2]
30% decrease. 

120-90 = 30
7 0
4 years ago
At the afternoon matinee movie, 2 adult tickets and 4 child tickets cost $32, and 4 adult tickets and 3 child tickets cost $44.
Yuliya22 [10]

Answer:

2x + 4y = 32

4x + 3y = 44

Step-by-step explanation:

From the information supplied in the question, we can see that 2 adult tickets and 4 child tickets cost $32. This means we multiply the cost of an adult ticket by 2 and add it to the product of 4 child tickets and its price I.e y.

We can also see that to get a total cost of $44, 4 adult tickets and 3 child tickets were bought. Hence, we simply multiply the cost of an adult ticket by 4 and add it to the product of 3 child ticket and its price

8 0
3 years ago
State the degree -4a^3b^2c^5
Marina86 [1]
The total power of the variables for the one term expression is 3 + 2 + 5 = 10. Hence, the degree is 10.
3 0
3 years ago
H varies directly to the cube of c.<br> When H = 40, C = 2.<br> (a) Express H in terms of c.
Alecsey [184]

Answer:

H in terms of c is H = 5c³.

Step-by-step explanation:

Given that:

H = 40 and c = 2

H varies directly to the cube of c.

Which means that,

H ∝ c³

Let,

k be the proportionality constant.

H = kc³

Putting H=40 and c=2

40=k(2)^3\\40=k(8)\\40=8k\\8k=40

Dividing both sides by 8,

\frac{8k}{8}=\frac{40}{8}\\k=5

Now,

H in terms of c.

H = 5c³

Hence,

H in terms of c is H = 5c³.

4 0
4 years ago
Applying the Quadratic Formula
Katyanochek1 [597]

Answer:

B

Step-by-step explanation:

The trick you need to employ is that when the rock hits the ground, the timer stops. So h must be taken as 0.

0 = - 16t^2 + 255            Set up the equation

- 255 = - 16t^2                Divide by -16

15.9375 = t^2                  Switch

t^2 = 15.9375                   Take the square root of both sides.

sqrt(t^2) = sqrt(15.9375)

t = 3.992 seconds

The closest answer is B


7 0
4 years ago
Read 2 more answers
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