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Andrei [34K]
3 years ago
12

WILL GIVE BRAINLIEST Plz help me.... : /

Mathematics
2 answers:
il63 [147K]3 years ago
8 0
-7,3. if you use slide and divide
andreyandreev [35.5K]3 years ago
6 0

Answer:

(-7 , 3)

Step-by-step explanation:

3x^2 + 12x = 63 //Subtract 63 on both sides.

3x^2 + 12x - 63 = 0 //Common factor 3.

3(x^2 + 4x - 21) = 0 //Divide both sides by 3.

(x^2 + 7x - 3x - 21) = 0

x(x + 7) - 3(x + 7) = 0

(x + 7) (x - 3) = 0

x = -7 and 3

Solution: (-7, 3)

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AleksAgata [21]

Answer:

-14.5

Step-by-step explanation:

6.5 * -3 = -14.5

- * + = -

5 0
3 years ago
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If (x^6)^y = x^3, then y = ___.<br><br> Show your work!
musickatia [10]
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A builder makes drainpipes that drop 1cm over a horizontal distance of 30cm to prevent clogs. A certain drainpipe needs to cover
Ann [662]

Answer:

700.39cm

Step-by-step explanation:

For a horizontal distance of 30cm, the drop is 1cm, now we need to get the drop for horizontal distance of 700 cm to maintain the same slope

Using the concept of cross multiplication

30cm=1 cm drop

700 cm=x

30x=700

X=700/30=70/3=23 ⅓

Utilizing pythagoras theorem, the length of pipe will be

L=√(23⅓)²+700²

L=700.38878092417 cm

Rounded off, the length is approximately 700.39 cm

8 0
3 years ago
she is increasing the price of her signature honey lemonade from 0.20 cents a cup to 0.25 cents. What is the percent increase?
Ne4ueva [31]
It is a 25% increase.
3 0
3 years ago
A(1)=20
Paladinen [302]

Answer:

-14

Step-by-step explanation:

You've got a(1)=20

a(1) means a(n) when n=1

the sequence is telling you to take the previous value of a(n), which is a(n-1) and subtract 17

then:

a(2) = a(1)-17 = 20 - 17 = 3

a(3) = a(2) - 17 = 3-17 = -14

3 0
3 years ago
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