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makvit [3.9K]
3 years ago
8

F(x)=−4x ^ 2 +10 {Find }f(-2)

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
3 0

Answer:

f(-2) = -6

Step-by-step explanation:

<u>Step 1:  Set x to -2 </u>

f(-2) = -4(-2)^2 + 10

f(-2) = -4(4) + 10

f(-2) = -16 + 10

f(-2) = -6

Answer:  f(-2) = -6

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nikitadnepr [17]

Answer:

[1250,1350).

Step-by-step explanation:

It is given that a number, x, rounded to 2 significant figures is 1300.

It is possible if,

1. The value of x is greater than of equal to 1250 and less than or equal to 1300.

i.e., 1250\leq x\leq 1300     ...(1)

2. The value of x is greater than of equal to 1300 and less than 1350.

i.e., 1300\leq x       ...(2)

On combining (1) and (2), we get

1250\leq x < 1350

1350 is not included in the error interval for x.​

Interval notation is [1250,1350).

Therefore, the error interval for x is [1250,1350).

7 0
3 years ago
Simplifying by adding, subtracting, multiplying, or dividing: (2/3)-(2/5)
Volgvan
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3 years ago
A piece of copper tubing is in the shape of a hexagonal prism. The area of the base of the prism is 3 square centimeters. The vo
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Answer: 17 cm

Step-by-step explanation:

For a regular figure where the area of the base is B, and the height is H, the volume is calculated as:

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If we replace those in the equation above, we get:

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Solving this for H gives:

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