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andrey2020 [161]
4 years ago
13

Explain and correct the error made by a student who simplified this expression.

Mathematics
1 answer:
blagie [28]4 years ago
4 0

Answer:

7x+54

Step-by-step explanation:

because you distribute the 7 to the x and the 8 first then you bring that down which becomes 7x+56 then you to the addition so you do 56+-2 which would give you 54.

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Convert 340 centimeters into inches. Round your answer to the nearest whole number.
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Step-by-step explanation:

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3 years ago
A board 91 cm long is to be cut into two parts so that the longer part is 10 cm more than twice as long as the shorter part. Fin
mojhsa [17]

Answer:

The parts are 27 cm and 64 cm long.

Step-by-step explanation:

Let the shorter part be x.

"The longer part is 10 cm more than twice as long as the shorter part."

shorter part: x

longer part: 2x + 10

total length: x + 2x + 10

total length: 91

x + 2x + 10 = 91

3x + 10 = 91

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x = 27

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Answer: The parts are 27 cm and 64 cm long.

7 0
3 years ago
Let f(x)=3x^2+5 . The quadratic function g(x) is f(x) translated 3 units up. Enter the equation for g(x) in the box. g(x) =
Phantasy [73]

Answer: g(x)=3x^2+8

Step-by-step explanation:

There are some transformations for a function f(x). Two of those transformations are:

1. If f(x)+k, then the function is translated "k" units up.

2. If f(x)-k, then the function is translated "k" units down.

In this case, you have the following Quadratic function  f(x) given in the exercise:

f(x)=3x^2+5

According to the information given, the function g(x) is obtained by translating the  Quadratic function  f(x)  3 units up. Based on this, you can identify that the transformation is the following:

 f(x)+k

Where k=3

Therefore, you can determine that:

g(x)=f(x)+3=3x^2+5+3\\\\g(x)=3x^2+8

7 0
3 years ago
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