3 years ago

Identify the property:

Mathematics

1 answer:

Lorico [155]3 years ago

6 0

Answer:1) commutative property of addition

Step-by-step explanation:

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9/x + 2 = 20 WAHT IN THE WORLD? HOWWWW?!

34kurt

Answer:

1/2 =x

Step-by-step explanation:

9/x + 2 = 20

Subtract 2 from each side

9/x + 2-2 = 20-2

9/x =18

Multiply each side by x

9/x *x = 18*x

9 = 18x

Divide each side by 18

9/18 = 18x/18

1/2 =x

5 0

3 years ago

Rolling an even number and the coin landing on heads

iren [92.7K]

Answer:

$\frac{1}{4}$

Step-by-step explanation:

Rolling a even: $\frac{3}{6} -> \frac{1}{2}$

Coin on heads: $\frac{1}{2}$

$\frac{1}{2}$ × $\frac{1}{2} =\frac{1}{4}$

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2 years ago

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Find the length of a side of a square if its area is m^2 square units

zimovet [89]

Answer:

Step-by-step explanation:

Square area: m²

The formula for finding the square area: m×m=m²

m²=√(m²)=m

one side of the square is equal to m

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3 years ago

At the malt shop a large chocolate shake takes 0.2 of a pint of milk. If a medium shake takes 0.7 the amount of a large, how muc

Maslowich

The answer would be 0.9 pints of shake

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3 years ago

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Find the z score that cuts-off the largest 9% under the standard normal curve. a) -1.34 b) 1.34 c) 0.536 d) 1.28

topjm [15]

Answer:

b) 1.34

Step-by-step explanation:

The z score is used to determine the number of standard deviations by which the raw score is above or below the mean. If the z score is positive then the z score is above the mean while for a negative z score implies that it is below the mean. The z score is given by:

$z=\frac{x-\mu}{\sigma}$

For the largest 9%, the score is 100% - 9% = 91% = 0.91

From the normal distribution table, the z score that corresponds to 0.91 is 1.34

4 0

3 years ago