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Sphinxa [80]
4 years ago
10

Please help! Brainliest answer! Thank you

Mathematics
1 answer:
Readme [11.4K]4 years ago
7 0

Answer:

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Step-by-step explanation:

wut?

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Which ordered pair is a solution to the system of equations?
tatyana61 [14]
2x - y = -2 . . . (1)
5x - 2y = -7 . . . (2)
From (1), y = 2x + 2 . . . (3)
Putting (3) into (2), gives:
5x - 2(2x + 2) = -7
5x - 4x - 4 = -7
x - 4 = -7
x = -7 + 4 = -3
y = 2(-3) + 2 = -6 + 2 = -4.

Therefore, the required answer is (-3, -4)
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Lily has 4 fewer ribbons than Dora. Lily has 7 ribbons. How many ribbons does Dora have
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Dora would have 11 ribbons
7 0
3 years ago
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.006 + .0002 in scientific notation
Vilka [71]
6.2 x 10^-3 Because when you add them together you get .0062 so you don't want anymore than one number to the left of decimal when in scientific notation therefore its 6.2 so you wanna move the decimal three spaces to the left to get .0062 therefore its 6.2x10^-3
6 0
3 years ago
Which of the following is a factor of (x+y)³-(x+y)³
IgorC [24]

▬▬▬▬▬▬▬▬▬▬▬▬▬▬

<h3>Answer :</h3>

The factor of (x + y)³- (x³ + y³) is <u>3xy</u>

<h3>Step By Step Solution :</h3>

→ (x + y)³- (x³ + y³)

→ (x + y) - (x + y)(x² - xy + y²) [Using identity a³ + b³ = (a + b)(a²- ab+ b²)]

→ (x + y)(x² + y² + 2xy - x² + xy - y²)[Using identity, (a + b)² = (a² + b²+ 2ab)]

→ (x + y) (3xy)

→ 3xy

∴ Option d. 3xy is correct!

▬▬▬▬▬▬▬▬▬▬▬▬▬▬

6 0
3 years ago
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Who's will help me with my work
snow_tiger [21]

Answer:

Ok

A. 33x - 14

B. 18x - 10

C. a - 20

D. 40a + 5

E. 5n - 24

F. - 16n + 37

G. -7x + 12

H. 15x + 28

I. - 7a +24

J. 13a - 27

K. -48n - 16

J. - 12n + 35

Well hope all this helps :)

Step-by-step explanation:


3 0
3 years ago
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