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3 years ago

PLEASE HURRY which expression is equivalent to -3 + (7x+13)

2 answers:

8 0

I think it’s 7x plus -4x which equals -3 then u would do 2 plus -7 which equals-5 so it will be positive 8 I think I do t really know I tried

mars1129 [50]3 years ago

8 0

Answer: $7x+10$

Step-by-step explanation:

Combine the terms;

$-3+7x+13\\(7x)+(-3+13)\\7x+10$

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Choose the correct simplification of the expression −3x2(5x − 4x2 − 6).

Bess [88]

Answer B.
$- 3 {x}^{2} (5x - 4 {x}^{2} - 6) \\ = - 15 {x}^{3} + 12 {x}^{4} + 18 {x}^{2} \\ = 12 {x}^{4} - 15 {x}^{3} + 18 {x}^{2}$

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4 years ago

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The answer should be 290 cm2, i will post a comment here later if it is wrong or not. Have a good day :)

labwork [276]

Answer:

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Step-by-step explanation:

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3 years ago

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Angelina_Jolie [31]

Area of a circle is Pi multiplied by radius squared

So, we do 3.142*2squared

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4 years ago

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In the arithmetic sequence, -12, -17, -22, -27... which term has a value of -68?

RSB [31]

Answer:

-68 is not a term in the given sequence

Step-by-step explanation:

The given sequence is -12, -17, -22, -27...

There is a common difference of d=-17--12=-5

The explicit rule for this sequence is $f(n)=-12-5(n-1)$

Or $f(n)=-5n-7$

To find the term that has a value of -68 we equate the explicit formula and solve for n.

$-68=-5n-7$

$\implies -68+7=-5n$

$\implies -61=-5n$

$n=\frac{61}{5} =12.2$

The position should be a natural number.

Since n is a decimal, it tells us that -68 is not a term in the given sequence

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4 years ago

Thank you guys for following and please follow more it's my humble request

Romashka-Z-Leto [24]

Answer:

Ok, I will... :) And can you also mark me as brainliest....

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3 years ago