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nekit [7.7K]
3 years ago
7

Kristin says that the square root of 0.01 is irrational, because 0.01 is not a perfect square. Do you agree? Explain.

Mathematics
1 answer:
Rasek [7]3 years ago
4 0

Her assumption is incorrect. While it is not of the perfect squares we typically think about, the same rules do not hold for numbers under 1. The square root of .01 is .1 and therefore is not irrational. This is true of many fractions between 0 and 1.

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-4x-2y=-12 4x+8y=-24
Alla [95]

Answer:

x=6\\ \\y=-6

Step-by-step explanation:

Given the system of two equations:

\left\{\begin{array}{l}-4x-2y=-12\\ \\4x+8y=-24\end{array}\right.

Add these two equations (left side add to left side and right side add to right side):

-4x-2y+4x+8y=-12+(-24)\\ \\-2y+8y=-12-24\\ \\6y=-36\\ \\y=-6

Substitute y=-6 into the first equation:

-4x-2\cdot (-6)=-12\\ \\-4x+12=-12\\ \\-4x=-12-12\\ \\-4x=-24\\ \\x=6

8 0
2 years ago
Graph A line goes through the point (6,–2) and has a slope of –3. What is the value of a if the point (a,7) lies on the line?
3241004551 [841]

Answer:

The value of a is 3

Step-by-step explanation:

First you have to make an equation based on the point and slope that you were given. The formula for this is y-(y cordinate of point)=slope(x-x cordinate of slope)

y--2=-3(x-6), which simplifies to y+2=-3(x-6)

In (a,7), 7 is the y coordinate. We have to plug 7 in for the y in our equation.

7+2=-3(x-6),

Combine like terms on the left side to get to 9=-3(x-6)

Multiply out on the left to get 9=-3x+18

Subtract 18 from the left side to get -9=-3x

Divide both sides by negative 3 to get 3=x (remember x is a)

7 0
2 years ago
One half of a number less than six is greater than or equal to ten
Colt1911 [192]

Answer:

5 is half of ten hope it helps

3 0
3 years ago
(3) Find the value of x.
jek_recluse [69]

Answer:

x=4

Step-by-step explanation:

since triangles are proportional by 2:1, then:

16/2=3x-4

8=3x-4

3x=12

x=4

3 0
2 years ago
the recipe calls for 5 lbs of apples and 2 cups of sugar. you only have 1 1/ cups of sugar. how many lbs of apples should you us
RSB [31]
5 lbs of apples         x pounds of apples----------------------  =   ----------------------------2 cups of sugar        4/3 cup of sugar Solve for x.
4 0
3 years ago
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