Find an equivalent fractions for each given fraction 70/10

Mathematics

1 answer:

ivann1987 [24]3 years ago

4 0

Answer:

14/2, 7/1, and 35/5

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Which is the value of this expression when a=-2 and b=-3

Lerok [7]

Answer:

$\frac{729}{64}$

Step-by-step explanation:

The given expression is

$(\frac{3a^{-3}b^{2} }{2a^{-1} b^{0} } )^{2}$

Where $a=-2$ and $b=-3$ .

When we say "evaluate the expression" refers to replacing the given values in the expression. Then, we solve each power in the numerator and denominator. After that, we solve each product in the fraction. At the end, we apply the square power. As follows

$(\frac{3a^{-3}b^{2} }{2a^{-1} b^{0} } )^{2}=(\frac{3(-2)^{-3}(-3)^{2} }{2(-2)^{-1} (-3)^{0} } )^{2}=(\frac{3(\frac{1}{-8})(9)}{2(\frac{1}{-2} (1))} )^{2} =(\frac{-\frac{27}{8} }{-1} )^{2} =\frac{27^{2} }{8^{2} } =\frac{729}{64}$

3 0

3 years ago

Find the coordinates of the midpoint (M) of PQ.

PSYCHO15rus [73]

Answer:

Step-by-step explanation:

Givens

P is (2,8)

Q is (-6,-6)

Equation

Midpoint = (x1 + x2)/2,(y1 + y2)/2

Solution

x1 = - 6

x2 = 2

y1 = -6

y2 = 8

M = (-6 + 2)/2, (-6+8)/2

M = -4/2, 2/2

M = -2 , 1

Just to make sure that you know that the answer is reasonable, I've put the midpoint (-2,1) on a graph with the two endpoints. You could print the points out and check it with a ruler.