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Alla [95]
3 years ago
9

(4x + 7) and (2x − 8)

Mathematics
1 answer:
allochka39001 [22]3 years ago
5 0

Answer:

the answer is 6x-1

Step-by-step explanation:

i hope it helps :)

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The volume of a cylinder is V = 1/3 πr2h. If the radius is doubled and the height is halved, what will be the ratio of the new v
ozzi
<span>V(o) = 1/3 πr²h - old volume
</span>V(n) = 1/3 π(2r)²(h/2)=1/3 π(2r)²(h/2)=1/3*4/2* πr²h=1/3*2* πr²h
V(n)/V(o)=1/3*2* πr²h/1/3 πr²h=2/1
V(n)/V(o)=2/1 - ratio
the volume will be doubled
8 0
3 years ago
Read 2 more answers
The cost to attend a Wildcat sports event is: Adult: $7 Student: $5 The total sales was $700.
hram777 [196]

Answer:

7x+5y=700

91 student tickets

Step-by-step explanation:

7x+5y=700

7(35)+5y=700

245+5y=700

5y=455

y=91

4 0
3 years ago
Solve the inequality -5y-7&lt;28
slava [35]

Answer: IDK sssrry


Step-by-step explanation:


3 0
3 years ago
Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper c
svp [43]

Answer:

0.2839 = 28.93%

Step-by-step explanation:

In order to find find the probability that one car chosen at random will have less than 68.5 tons of coal, we have to find z

Le x be tons of coal in a car

Z = (x – mean)/standard deviation

Z = (x – μ)/ σ

P (x<68.5) = P(z < (68.5-69)/0.9)

P (x<68.5) = P(z < -0.5555)

Then we use the z table to find the area under the curve.

P (x<68.5) = 0.2893

5 0
3 years ago
1. If we have 3 babies what is the probability they’re going to be all boys?
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I don’t knowww mannnnnn
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