3 years ago

Which expression below is equivalent to the one below? 3 (2x+5)-(-5x+4)

Mathematics

2 answers:

Vinil7 [7]3 years ago

8 0

Answer:

D) 11x + 9

Step-by-step explanation:

3(2x + 5) - (-5x + 4) = (6x + 15) - (-5x + 4) = 6x + 15 + 5x - 4

add like terms:

(6x + 5x) + (15 - 4) = 11x + 9

Anna11 [10]3 years ago

5 0

3(2x+5)-(-5×+4)

3(2×+5) - (-5×+4)

3× (6×) - (1)

6×+1

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Help please ASAP please I’ll mark you as brainlister

storchak [24]

Answer:

a = 4

Step-by-step explanation:

$\sin(theta) = \frac{opposite}{hypotenuse}$

$\cos(theta) = \frac{adjacent}{hypotenuse}$

$\tan(theta) = \frac{opposite}{adjacent}$

hypotenuse = a

opposite = 2√3

adjacent = b

theta = 60°

the best formula to use is the first formula cause we have all the values to substitute in it in order to find the value of a

$\sin(60) = \frac{2 \sqrt{3} }{a}$

$\frac{2 \sqrt{3} }{ \sin(60) } = a$

$4 = a$

$a = 4$

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3 years ago

Simplify (-x^2 – 28x + 7) + (-7x^2 + 14x + 8).

Anon25 [30]

Add numbers with the same amount of variables

-x^2 + (-7x^2) = -8x^2

– 28x (+ 14x )= -14x

7 (+ 8) = 15

-18x² - 14x + 15 is your answer

hope this helps

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3 years ago

(Will give 25 points) Given the graph of this trigonometic funaction over which domain(s) could inverse function be constructed

GREYUIT [131]

Answer:

ok so i think it it a or b i don't know but hope i am right

Step-by-step explanation:

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3 years ago

Evaluate the expression when a=-3 and x=3.<br> 5x - a

NISA [10]

5(3)-(-3)
15- (-3)
15+3 = 18

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3 years ago

PLEASE HELP ILL GIVE BRAINLIEST

Alexeev081 [22]

Answer: A.

Step-by-step explanation:

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3 years ago