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3 years ago

If q(x)=7x^2-1 ; find Q(-10)

1 answer:

8 0

In terms of PEMDAS, you would first find -10 squared, which is 100, and multiply it by 7, giving you 700-1. The answer would be 699.

If you weren't going by PEMDAS, then you would take 7, multiply it by -10, square that, and subtract one from it. -70^2=4,900. Subtract 1, and your answer is 4,899.

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A ball is thrown down from a balcony with a vertical velocity (in ft/s) given by

fenix001 [56]

Answer:

–90 < –32t – 10 < –58

Step-by-step explanation:

We want the velocity to be BETWEEN -90 and -58.

Whenever we need a quantity, let it be A, to be between two numbers, p and q (p is less than q), we can write it as:

p < A < q

Similarly, here we need the velocity, -32t-10 to be BETWEEN -90 and - 58 (with -90 being the smaller number). Thus we can write:

–90 < –32t – 10 < –58

This is the correct choice, 2nd choice.

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3 years ago

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1 /6 of a pile of marbles are red ones, and out of those red marbles 3 /4 of them are big marbles. What fraction of the entire p

mihalych1998 [28]

Answer:

4/5 of them are big red marbles

Step-by-step explanation:

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2 years ago

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Jane decided she would spend the

Vadim26 [7]

Answer:

This question makes no sense

Step-by-step explanation:

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2 years ago

What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? Drag and drop the values into the

quester [9]

Answer:

.25 .75

.44 .56

Step-by-step explanation:

To find the relative frequency, we take the part over the total.

Since this is a relative frequency table, the total for each row is 1

Group 1 A = 15/ (15+45) = 15/60 = .25

Group 1 B = 45/(15+45) = 45/60 = .75

Group 2 A = 20 /(20+25) = 20/45 =.44

Group 2B = 25/(20+25) = 25/45 =.56

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2 years ago

A vegetable garden is in the shape of a parallelogram with the dimensions shown.Parallelogram A B C D is shown. The length of A

olga55 [171]

Answer:

t needs 68 feet to enclose the garden.

Step-by-step explanation:

In this problem, we are to solve the sides of a parallelogram ABCD to know the measurement to enclose a garden.

Take note that a parallelogram has two equal lengths and two equal widths. Let us assume that the parallelogram AB = CD is the length and AD = BC is the width.

Solving the problem

First, let us solve for r using the condition AD = BC

AD = BC

3r + 8 = 2r + 12

Simplify the equation

3r - 2r = 12 - 8

r = 4

Next, let us substitute the value of r to AB, BC, CD, and AD.

For AB:

AB = 4r - 2

AB = 4(4) - 2

AB = 16 - 2 = 14

For BC:

BC = 2r + 12

BC = 2(4) + 12

BC = 8 + 12 = 20

For AD:

AD = 3r + 8

AD = 3(4) + 8

AD = 12 + 8 = 20

For CD:

But AB = CD Therefore, CD = 14

Finally, let us solve the perimeter of the parallelogram

Perimeter = AB + BC + CD + AD

Perimeter = 14 + 20 + 20 + 14

Perimeter = 68 feet

Therefore, the fencing needed to enclose the garden is 68 feet.

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Step-by-step explanation:

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2 years ago

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