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Mashcka [7]
2 years ago
9

Solve: -5√x= -15 a: x=-9 b: x= -7 c: x=9 d: x=7

Mathematics
2 answers:
Rom4ik [11]2 years ago
7 0
<span>The answer is C: x = 9</span>
babymother [125]2 years ago
4 0
Divide both sides by -5
Sqrt(x) = 3
We want to isolate x to solve for it. The opposite of a square root is a square, so square both sides.
x = 9
It can't be -9 because the square root of negative numbers are not real numbers.
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Sarah is allowed to watch no more than 10 hours of television each week. Sarah has already watched 6 hours of television. Define
sashaice [31]

Answer:

Inequality = 6 + x ≤ 10

x(Number of hours more of television Sarah can still watch this week) = 4 hours

Step-by-step explanation:

Define a variable, set up an inequality and solve that inequality to determine how many more hours of television Sarah can watch this week.

We are told in the question that:

Sarah is allowed to watch no more than 10 hours of television each week.

This means :

Sarah can watch tv for less than or equal to 10 hours in a week. Sarah has already watched 6 hours of television.

Hence:

The number of hours left that Sarah can watch television in a week is represented as x

Our Inequality Equation =

6hours + x hours ≤ 10 hours

6 + x ≤ 10

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x ≤ 10 - 6

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This means Sarah still has no more than (less than or equal to) 4 hours or television left to watch in this week

7 0
2 years ago
1. Solve for the x and y intercepts:
aleksandrvk [35]
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Number 2 we would do the same thing and get D as well.
Hope this helps!
4 0
2 years ago
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