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Andre45 [30]
3 years ago
6

Solve -2x + 6 = -20. (A) -13 (B) 13 (C) -7 (D) 7

Mathematics
2 answers:
kow [346]3 years ago
8 0
Answer: x=13

explanation:
-2x+6=-20
subtract 6 from both sides
-2x=-26
divide -2 by both sides
two negatives equals a positive
x=13
Digiron [165]3 years ago
8 0
The answer is B (13)
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Brain enjoys hang gliding on his last flight, he jumped off a cliff 520 high he landed 450 from the base of the cliff how far di
belka [17]

Answer:

Brain travelled 687.68 from the cliff.

Step-by-step explanation:

Given that:

Height of the cliff = 520

Base of the cliff = 450

The distance will form the hypotenuse of right angled triangle.

Pythagorean theorem states square of hypotenuse of right angled triangle is equal to the sum of squares of base and height of triangle.

Using pythagorean theorem;

a = 520, b=450, c = hypotenuse

a^2+b^2=c^2\\(520)^2+(450)^2=c^2\\270400+202500=c^2\\472900=c^2\\c^2=472900

Taking square root on both sides

\sqrt{c^2}=\sqrt{472900}\\c=687.68

Hence,

Brain travelled 687.68 from the cliff.

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3 years ago
-4 x f (8) + 3 x g(-7) HELP ASAP
lubasha [3.4K]

Answer:

-32

Step-by-step explanation:

-4 + f(8) + 3 x g(-7) = ?

To find f(8), look at each of the f(x) function and find x = 8. The y value is the answer you will plug in for f(8). The same goes for g(-7), but you will be looking at the g(x) function at x = -7.

f(8) = -4

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Make sure you solve in the correct order using PEMDAS.

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3 years ago
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solmaris [256]

Answer:

there are 10 tens in 105 with a remainder 5

Step-by-step explanation:

10 times 10 equals 100

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Answer:

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3 years ago
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Use the image to answer the question.
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