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aev [14]
2 years ago
10

Choose 1 answer:

Mathematics
1 answer:
AlladinOne [14]2 years ago
8 0

Answer

B

Explain:I got it right definitely didn't search it up

but I promise it's right

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What is one of the solutions to the following equations? y2+x2=53<br> Y-x=5
Olenka [21]
(1)  y² + x² = 53
(2)  y - x = 5 ⇒ y = x + 5

subtitute (2) to (1)

(x + 5)² + x² = 53      |use (a + b)² = a² + 2ab + b²

x² + 2x·5 + 5² + x² = 53

2x² + 10x + 25 = 53     |subtract 53 from both sides

2x² + 10x - 28 =0     |divide both sides by 2

x² + 5x - 14 = 0

x² - 2x+ 7x - 14 = 0

x(x - 2) + 7(x - 2) = 0

(x - 2)(x + 7) = 0 ⇔ x - 2 = 0 or x + 7 = 0 ⇔ x = 2 or x = -7

subtitute the values of y to (2)

for x = 2, y = 5 + 2 = 7
for x = -7, y = 5 + (-7) = 5 - 2 = 3

Answer: x = 2 and y = 7 or x = -7 and y = 3
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3 years ago
Membership in an art club is expected to grow by about 4% per month. Currently, there are 350 members in the club. In about how
igomit [66]
500=350(1+0.04/12)^12x
Solve for x
500/350=(1+0.04/12)^12x
X=(Log(500/350)/log(1+0.04/12))/12
X=9 months
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The graph of a function is shown on the coordinate plane below. Identify the rate of change of the function.
soldi70 [24.7K]

Answer:

it's 2

Step-by-step explanation:

3 0
3 years ago
Need help! BIG OFFER FOR POINTS!
Ksenya-84 [330]
Which one ? All of them?
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2 years ago
Derek is 6.5 feet tall and casts a shadow that is 10 feet long. If a basketball hoop next to
Anna [14]

Answer:

example lang po

Flagpole height is 50 ft.

Explanation:

This is a ratio problem

height of object

length of shadow

Let the height of the flagpole be

x

⇒

6

3

=

x

25

x

=

6

×

25

3

=

50

f

t

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