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MariettaO [177]
3 years ago
7

Simplify the expression: 3x2(x2 - 4x - 2) + (5x3 + 7x2 + 2x + 11) Show and explain your steps.

Mathematics
1 answer:
KengaRu [80]3 years ago
7 0
Are they suppose to be squared ?

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Schach [20]

Answer:

The answer is D.) infinitely many solutions mate

8 0
2 years ago
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Given a trapezoid with a height of 4.3m and bases of 9.2 m and 3.2m, what is the area of the trapezoid? Do not include units in
77julia77 [94]

For  a height of 4.3m and bases of 9.2 m and 3.2m, the area of the trapezoid  is mathematically given as

A=26.7

<h3>What is the area of the trapezoid?</h3>

Generally, the equation for the trapezoid   is mathematically given as

A=0.5*(a+b)*h

Therefore

A=0.5*(3.2+9.2)*4.3

A=26.7

In conclusion,area of the trapezoid

A=26.7

Read more about Arithmetic

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7 0
2 years ago
A train travels 200 miles in 4 hours at a constant rate. What is the constant rate of change for the train in miles per hour? A.
Sav [38]

Answer:50 miles

Step-by-step explanation:

6 0
3 years ago
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When a number is decreased by 18, the result is 14. what is the number
Serggg [28]
X is the number

when x is decreased by 18, we say 18-x

the result is 14

18-x=14
minus 18 both sides
-x=-32
times both sides by -1
x=32
6 0
3 years ago
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the distance a jet travels varies directly as the number of hours it flies. A jet traveled 2875 miles in 5 hours. What is the co
skelet666 [1.2K]

Answer:

k = 575

Step-by-step explanation:

let d be distance and h time.

Given d varies directly as h then the equation relating them is

d = kh ← k is the constant of variation

To find k use the condition d = 2875, h = 5, then

2875 = 5k ( divide both sides by 5 )

k = 575

3 0
3 years ago
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