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3 years ago

Without finding the quotient, is the value of the expression (-3 1/3 + 3 1/2) ÷ (-1/4) positive or negative? Explain.

Mathematics

1 answer:

erastovalidia [21]3 years ago

4 0

Answer:

positive

Step-by-step explanation:

the answer is 0

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Renee is simplifying the expression (7) (StartFraction 13 over 29 EndFraction) (StartFraction 1 over 7 EndFraction). She recogni

dsp73

Answer:

The correct option is commutative property.

Step-by-step explanation:

The expression that Renee is simplifying is:

$(7)\cdot(\frac{13}{29})\cdot(\frac{1}{7})$

It is provided that, Renee recognizes that 7 and $\frac{1}{7}$ are reciprocals, so she would like to find their product before she multiplies by $\frac{13}{29}$ .

The associative property of multiplication states that:

$a\times b\times c=(a\times b)\times c=a\times (b\times c)$

The commutative property of multiplication states that:

$a\times b\times c=a\times c\times b=c\times a\times b$

The distributive property of multiplication states that:

$a\cdot (b+c)=a\cdot b+a\cdot c$

The identity property of multiplication states that:

$a\times 1=a\\b\times 1=b$

So, Renee should use the commutative property of multiplication to find the product of 7 and $\frac{1}{7}$ ,

$(7)\cdot(\frac{13}{29})\cdot(\frac{1}{7})=(7\times\frac{1}{7})\times\frac{13}{29}=\frac{13}{29}$

Thus, the correct option is commutative property.

5 0

3 years ago

Read 2 more answers

Help me with this question pls

Mandarinka [93]

1/6 was not eaten

Hope this helps

4 0

3 years ago

Read 2 more answers

A school band is buying new jackets and hats. A jacket costs $100 and a hat costs $40. The expression 100/+40h represents the co

erastova [34]

Answer:

820

Step-by-step explanation:

100j+40h

100(5)+40(8)

500+320

820!

7 0

3 years ago

Suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000. Use the 68-95-99.7 rule to

konstantin123 [22]

Answer:

C. 47.5%

Step-by-step explanation:

The summary of the given statistics include:

mean =150000

standard deviation: 1200

The objective is to use tributed with a mean of $150,000. Use the 68-95-99.7 rule to find the percentage of buyers who paid: between $150,000 and $152,400

The z score formula can be use to calculate the percentage of the buyer who paid.

$z = \dfrac{X - \mu}{\sigma}$