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3 years ago

32^2+42^2 pts 4fre yes im aware i spelled it wrong.

Mathematics

1 answer:

Dima020 [189]3 years ago

7 0

Answer:

2788

Step-by-step explanation:

To square a number means to multiply it by itself:

$32^2+42^2=32 \times 32+42 \times 42=1024+1764=2788$

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10. Subtract -2x from -8x.

igomit [66]

-10x. All you have to do is subtract -2 from -8 and then put an x there so it’s -10x

5 0

3 years ago

Please help!! i need 15 & 17!

Ludmilka [50]

Answer:

15. Answer: length = 15 ft; width = 3 ft

16. Answer: base = 14 cm; height = 5 cm

17. Answer: x² - 5x - 24 = 0

Step-by-step explanation:

15.

area of rectangle = length * width

length = x - 2

width = x - 14

area = (x - 2) (x - 14)

We are shown the area to be 45 ft².

We set the expression of the area equal to the given area and solve the quadratic equation for x.

(x - 2)(x - 14) = 45

x² - 14x - 2x + 28 - 45 = 0

x² - 16x - 17 = 0

(x - 17)(x + 1) = 0

x - 17 = 0 or x + 1 = 0

x = 17 or x = -1

We discard the negative answer, x = -1, since it would give negative length and width.

x = 17

length = x - 2 = 17 - 2 = 15

width = x - 14 = 17 - 14 = 3

Answer: length = 15 ft; width = 3 ft

16.

area = ½bh

area = ½(x - 5)(x - 14)

area = 35

½(x - 5)(x - 14) = 35

(x - 5)(x - 14) = 70

x² - 14x - 5x + 70 = 70

x² - 19x = 0

x(x - 19) = 0

x = 0 or x - 19 = 0

We discard x = 0 since it would give negative dimensions.

x = 19

base = x - 5 = 19 - 5 = 14

height = x - 14 = 19 - 14 = 5

base = 14

height = 5

Answer: base = 14 cm; height = 5 cm

17.

A polynomial with solutions x = a and x = b can be found by multiplying (x - a) by (x - b). Here, the solutions are x = -3 and x = 8.

[x - (-3)](x - 8) = (x + 3)(x - 8) = x² - 8x + 3x - 24 = x² - 5x - 24

Answer: x² - 5x - 24 = 0

5 0

4 years ago

Perform the operation (10^2-x+1)-(9x-2)

stiks02 [169]

Answer:

-9x^2+911x-202

Step-by-step explanation:

You will need to multiply each term in the parenthesis with each term in the other parenthesis.

5 0

3 years ago

Can I get some help? Please show your work! Thanks!

kirill [66]

Hey there,

Your question states: You have a 332 feet fencing to enclose a rectangular region. What is the maximum area.

Your correct answer would be 6,889.

Reason/explanation:

The formula that we would use is $P = 2l+2w$

$f(x)=ax^{2} +b*x+c$

$L=166=-W\\ L=83$
_____________________________________________________________

So by this, now that we know that $L=83$

We do . . . 83 × 83. . .

And you final answer would be Option A.) 6,889

Hope this helps you!

~Jurgen

6 0

3 years ago

Read 2 more answers

I need the answer to -3(p+4)+5<(-16)

rodikova [14]

Answer:

Step-by-step explanation:

3 0

4 years ago