18. Place parentheses in the following equation to make it true. 4 + 5 x 3-8 = 19

Mathematics

1 answer:

Simora [160]3 years ago

6 0

Answer:

4+(5×3) -8=19 that's what I got

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What’s the least common multiple of x^2-2x-15 and x^2+2x-3?

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Answer:

$\large\boxed{LCM(x^2-2x-15,\ x^2+2x-3)=(x+3)(x-5)(x-1)}\\\boxed{=x^3-3x^2-13x+15}$

Step-by-step explanation:

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What is the value of<br> x 2 - 14 when x = 9?

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Answer:

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What is Perimeter of triangle ABC?

belka [17]

Considering they are congruent
if 7x-19=2x+11
how much is 6x-8

7x-19=2x+11
7x=2x+30
7x-2x=30
5x=30
X=6

6x-8=
(6*X)-8=
(6*6)-8=
36-8=
28

therefore
BC= 28
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(2*6)+11
12+11
23

23+28+24=75
therefore the perimeter is 75

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3 years ago

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