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3 years ago

Solve the equation. 5x + 10 = 15 A. 3 B. 1 C. 5 D. 25

Mathematics

1 answer:

nikklg [1K]3 years ago

5 0

Answer:

B. 1

Step-by-step explanation:

5x + 10 = 15

-10 -10

5x = 5

÷ 5 ÷ 5

x = 1

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denpristay [2]

Answer - 42 Sandwiches

Explanation -
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3 years ago

Yesterday 90% of mr.smiths students passed the test if he has 60 students , how many students did NOT pass?

Anit [1.1K]

Answer:

Step-by-step explanation:

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3 years ago

The line AB has the midpoint of (2,5) A has coordinates (1,7) find the coordinates of B

Pavel [41]

Answer:

Point B is at (3,3)

Step-by-step explanation:

the mid point is (2,5) and A is at (1,7)

first find the slope:

y1 - y2/x1 - x2

7 - 5/1 - 2

2/-1

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3 years ago

Find the inverse of the function y = x^2 + 12x

PilotLPTM [1.2K]

Answer:

y=x\\

x=y^{2} + 12y\\

y^{2} + 12y -x = 0\\

Delta = (12^{2}) - 4.1.(-x) = 144 +4X = 36.(4+x)

\sqrt{Delta} = 6 . \sqrt{(4+x)} \\

y' = \frac{-12 + 6.(\sqrt{(4+x)}}{2} = -6 + 3.\sqrt{(4+x)}\\

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3 years ago

Averi was trying to factor 4x2 + 20x - 16. She found

hichkok12 [17]

Answer:

The width will be $x^{2} +5x-4$

Step-by-step explanation:

Thinking process:

Let the model be:

$4x^{2} +20x-16$

factoring out 4 gives:

$4(x^{2} +5x-4)$

Factorizing the expression in the parentheses gives:

$4(x^{2} +5x-4)$

Therefore, since the expression in the parentheses cannot be factorized further, the expression is:

$length = 4 units\\width = x^{2} +5x-4$

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3 years ago