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gladu [14]
3 years ago
6

If x = -3, calculate the value of: 2x2 + x

Mathematics
1 answer:
user100 [1]3 years ago
8 0
At x=-3:

2x^2+ x
= 2(-3)^2+ (-3)
= 2*9 -3
= 18 -3
= 15

The value of 2x^2+ x is 15 if x=-3~
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Shabana earns £1900 a month. She is awarded a 1% pay rise. What is her new salary?
elena-s [515]

Answer: 1919 will be the final amount

Step-by-step explanation: 1 percent of 1900 is 1900/100=19

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2 years ago
Acellus
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Answer:

<6

Step-by-step explanation:

Corresponding angles have the same matching corner when a transversal line crosses tow straight lines.

Thus, in the diagram given, the angle that has the same matching corner with <2 is the angle that corresponds to <2.

<6 has the same matching corner with <2.

Therefore, <6 corresponds with <2

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3 years ago
How many whole numbers are there, whose squares and cubes have the same number of digits?
Naddik [55]

Answer:

there are only 4 whole numbers whose squares and cubes have the same number of digits.

Explanations:

let 0, 1, 2 and 4∈W (where W is a whole number), then

0^2=0, 0^3=0,

1^2=1, 1^3=1,

2^2=4, 2^3=8,

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7 0
3 years ago
Solve the equation 4n = 9
aliina [53]

Answer:

n = 9/4 = 2.250

Step-by-step explanation:

Rearrange:     4*n-(9)=0

Solve:  4n-9 = 0

     4n = 9

       n = 9/4 = 2.250

answer:     n = 9/4 = 2.250

6 0
3 years ago
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Math home work I have two questions
andreyandreev [35.5K]

Answer:

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Step-by-step explanation:

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180 - 122 = 58

8 0
3 years ago
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