3 years ago

GIVING BRAINLIEST -30 points- URGENT HELP ME PLEASE!!!

Mathematics

2 answers:

Aneli [31]3 years ago

6 0

Answer:

hope this helps you.......

GREYUIT [131]3 years ago

3 0

Step-by-step explanation:

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hope it helps you

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63 :(5X - 3X - 1)=21:3

Crazy boy [7]

Answer:

x = 5

Step-by-step explanation:

Given that,

$63:(5x-3x-1)=21:3\\\\or\\\\\dfrac{63}{(5x-3x-1)}=\dfrac{21}{3}\\\\\dfrac{63}{(2x-1)}=7$

Cross multiplying both sides,

$63=7(2x-1)\\\\9=2x-1$

Taking like terms together,

$10=2x\\\\x=5$

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3 years ago

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A. 42<br> b. 27<br> c. 12<br> d. 18

hodyreva [135]

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2 years ago

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Leni [432]

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3 years ago

Find f(-2) if f(x) = x + x + 7. f(-2) =

Lynna [10]

Answer:

f(-2) = 9

Step-by-step explanation:

Given that,

f(x) = x² + x + 7

We need to find the value of f(-2).

Put x = -2 in the given function.

f(-2) = (-2)² + (-2) + 7

= 4-2+7

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Hence, the value of f(-2) is equal to 9.

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2 years ago