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lora16 [44]
3 years ago
7

Unit 1 Lesson 14: Unit 1 Test February 12, 2020

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
7 0

Answer:

are you in conexus :-):-):-):-):-)

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If 3t - 7 = 5t, then 6t =
STALIN [3.7K]

Answer:

-21 = 6t

Step-by-step explanation:

3t - 7 = 5t

Subtract 3t from each side

3t-7-3t = 5t-3t

-7 = 2t

Multiply each side by 3 to get 6t

-7*3 = 2t*3

-21 = 6t

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Mitchell use one fourth of a carton of 12 eggs to make an omelette how many eggs did she use
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3 Eggs: 4 times what equals 12? (We use 4 because its 1/4 or a quarter) 3 times 4 equals 12.
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Hujknjk jk jjkjj help
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Answer:

x≤ -7 or x≥ -4  

Step-by-step explanation:

There is a closed circle at -7 and the line goes to the left

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There is a closed circle at -4 and the line goes to the right

x≥ -4  

Since they both can't be true at the same time it is an or

x≤ -7 or x≥ -4  

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kyle models a sum of two integers. he uses more negative (red) counters than postive (yellow) counters. what do you predict abou
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Sa = 2(pi)(r)(h) + 2(pi)(r^2) v = (pi)(r^2)(h) find the surface area and the volume.
LenKa [72]

If Sa=2πrh+2πr^{2}v=πr^{2}h then the surface area is πr^{2} h and volume is

(rh-2h)/2r.

Given Sa=2πrh+2πr^{2} v=πr^{2}h.

We have to find surface area and volume from the given expression.

Volume is basically amount of substance a container can hold in its capacity.

First we will find the value of v from the expression. Because they are in equal to each other, we can easily find the value of v.

2πrh+2πr^{2}v=πr^{2}h

Keeping the term containing v at left side and take all other to right side.

2πr^{2}v=πr^{2}h-2πrh

v=(πr^{2}h-2πrh)/2πr^{2}

v=πr^{2} h/2πr^{2}-2πrh/2πr^{2}

v=h/2-h/r

v=h(r-2)/2r

Put the value of v in Sa=2πrh+2πr^{2} v

Sa=2πrh+2πr^{2}*h(r-2)/2r

=2πrh+2πrh(r-2)/2

=2πrh+πrh(r-2)

=2πrh+πr^{2}h-2πrh

=πr^{2}h

Hence surface area is πr^{2}h and volume is h(r-2)/2.

Learn more about surface area at brainly.com/question/16519513

#SPJ4

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