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My name is Ann [436]
2 years ago
5

If 4x = 28, find the value of 29 - 5x

Mathematics
2 answers:
7nadin3 [17]2 years ago
8 0

Answer:

-6

Step-by-step explanation:

28/4=7

7*5=35

29-35=-6

jolli1 [7]2 years ago
5 0

Answer:

The value of 29 - 5x is -6

Step-by-step explanation:

4x = 28     (do the inverse operation of multiplication which is division)

----    ----

4       4

Which equals x = 7

Since x = 7 then we put that value to the equation of 29 - 5x

29 - 5 * 7

= 29 - 35

= -6

Hope this helps!

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Answer:

If a certain cone with a height of 9 inches has volume V = 3πx2 + 42πx + 147π, what is the cone’s radius r in terms of x?

Step-by-step explanation:

V = 3πx2 + 42πx + 147π

V=3π(x2 + 14x +49)

9.42(x2 + 14x +49)

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9.42(x + 7)^2 + 35= 0

9.42(9.42(x + 7)^2 = - 35)9.42

(x + 7)^2 = - 35/9.42)

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V=750.69 - 1177.29 + 461.58

<u>V=34.98</u>

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34.98 = 13(3.14) (r^2) (h)

34.98 = 40.82 (r^2) 9

34.98 = 367.38 r^2

34.98/ 367.38 = 367.38 r^2/ 367.38

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3 0
2 years ago
I have a flower vase with a 6 " diameter and is 12 " tall I want to fill it 2/3 of the way full how many cubic inches will I fil
RSB [31]

Answer:

72\pi\ in^{3}

Step-by-step explanation:

step 1

<em>Calculate the volume of the cylinder (flower vase)</em>

The volume is equal to

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r=6/2=3\ in -----> the radius is half the diameter

h=12\ in

substitute the values

V=\pi (3)^{2}(12)=108\pi\ in^{3} ------> exact value

step 2

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3 years ago
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2:12 is an equivalent ratio
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faltersainse [42]

Answer:

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Step-by-step explanation:

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