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zubka84 [21]
3 years ago
10

I will mark you brainliest if your answer is right

Mathematics
1 answer:
rusak2 [61]3 years ago
8 0
12.72 is the answer
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<img src="https://tex.z-dn.net/?f=4x%5E%7B2%7D%20%2B28x%2B49%3D0" id="TexFormula1" title="4x^{2} +28x+49=0" alt="4x^{2} +28x+49=
Harman [31]

Answer:

x = -7/2 multiplicity 2.

Step-by-step explanation:

 4x^2 + 28x + 49 = 0

(2x + 7)(2x + 7) = 0

This is a perfect square.

2x + 7 = 0, so:

x = -7/2 multiplicity 2.

6 0
3 years ago
What is the solution to the following system of equations?<br><br> x+y=5<br> x-y=1<br> step by step
Andreas93 [3]
x+y=5
-x -x

Equals:

y=-x+5

Now you have:

y=-x+5
x-y=1

Insert -x+5 into y

x-x+5=1

Combine like terms

2x+5=1

Subtract 5.

2x=-4

Divide 2.

Answer: x=-2

8 0
3 years ago
Point B is at (4, 5). It is reflected on the x-axis. What are the coordinates of its image, B'?
seropon [69]

Answer:   (4, -5)

(so it sendswfegrgnhernth4retn)

4 0
3 years ago
If 5 bags cost $255.35 how much would 2 bags cost
VARVARA [1.3K]
The answer would be $102.14 if you divide 255.35 by 5 then multiply it by 2, you'll get 102.14
255.35 divided by 5 = 51.07 x 2 = 102.14

Hope this helps! ;)
3 0
3 years ago
Read 2 more answers
what is the volume of the hamsta snack box with a width of 1 1/2 inches, a length of2 1/2 inches, and a height of 4 inches
jenyasd209 [6]

<u>Given:</u>

The width of the snack box is 1 \frac{1}{2} \ inches=\frac{3}{2} \ inches

The length of the snack box is 2 \frac{1}{2} \ inches=\frac{5}{2} \ inches

The height of the snack box is 4 inches.

We need to determine the volume of the hamsta snack box.

<u>Volume of the box:</u>

The volume of the box can be determined using the formula,

V=L \times W \times H

where L is the length, W is the width and H is the height of the box.

Substituting the values, we get;

V=4 \times \frac{3}{2} \times \frac{5}{2}

Simplifying, we get,

V=\frac{60}{4}

V=15 \ in^3

Thus, the volume of the Hamsta snack box is 15 cubic inches.

3 0
3 years ago
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