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ololo11 [35]
3 years ago
5

Simplify the following expression: 5(2x-4)-4(2-5x)

Mathematics
1 answer:
USPshnik [31]3 years ago
8 0

Answer:

30x - 28

Step-by-step explanation:

distribute

5(2x) - 5(4) -4(2) - 4(-5x)

10x - 20 - 8 + 20x

30x - 28

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Answer:

False

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2 years ago
If the discriminant of a quadratic equation is equal to -8, which statement describes the roots?
tia_tia [17]

Answer:

There are two complex roots.

Step-by-step explanation:

When the discriminant is a negative number, the parabola will not intersect the x-axis. This means that there are no solutions/two complex solutions.

4 0
3 years ago
Q1. A fluorescent lamp takes in energy from the electricity supply at the rate of 18 joules each second. It gives out 3 joules o
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Answer:

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8 0
3 years ago
Simplify the following expression: '5x - 8 + 3y + 10x - 8y'
monitta

Answer:

-5x-8-11y

Step-by-step

Because you shift 10x to -10x and then 5x-10x = -5x

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6 0
3 years ago
A store purchased a sweater for $40 and then marks the price up 75% before selling it. What is the price of the sweater in store
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40 * 75% = 30

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7 0
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