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3 years ago

-12=-2(2-8) Is it true false or an open sentence

2 answers:

7 0

The statement is false because when you use distributive property, you get -12=-4+16 and when you add 16 to -4, you'll get 12, not -12, making the statement false.

pochemuha3 years ago

5 0

False because -12 does not equal -6

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I HAVE A QUESTION.. so on 8 and 9, do I keep it addition or do I put it as subtraction? ALSO I NEED HELP ON 13 AND 14

NeX [460]

Step-by-step explanation:

question 8 answer = -4

questions 9 answer = -18

pls mark my answer as brainlist plzzzz vote me also

4 0

3 years ago

Perform the following operations and write the answers and in radical form

Scorpion4ik [409]

The given expression is

$8^{1/2} +16^{1/4}-12^{1/2}+81^{1/4}$

We can write 8 as cube of 2, 16 ad fourth power of 2, 12 as square of 2 times 3 and 81 as fourth power of 3, that is

$(2^3)^{1/2} +(2^4)^{1/2} - (2^2 *3)^{1/2} + (3^4)^{1/2}$

In case of two powers, we have to multiply them.

$=2^{3/2} + 2^{4/2} -2^{4/2} * 3^{1/2} + 3^{4/2}$

Simplifying the exponent, will give

$=2*2^{1/2} +4 -4*3^{1/2} +9$

Combining like terms,

$=13+2*2^{1/2} -4*3^{1/2}$

7 0

3 years ago

Read 2 more answers

Find an equivalent rate. 16 pounds for $40.00 1 for $1.50 1 for $2.50 1 for $5.50 1 for 6.50

djyliett [7]

Answer:

1 for $2.50

Step-by-step explanation:

$16:40= \\\\\dfrac{16}{16}:\dfrac{40}{16}= \\\\1:2.5$

Therefore the unit rate is 1 pound for $2.50. Hope this helps!

4 0

3 years ago

Suppose U.S. consumers 21 years and older consumed 26.8 gallons of beer and cider per person during 2017. A distributor in Milwa

Kruka [31]

Answer:

d) Conclude that the population mean annual consumption of beer and cider in Milwaukee is greater than 26.8 gallons and hence higher than throughout the United States.

Step-by-step explanation:

We have a hypothesis test about the true mean consumptionof beer and cider for U.S. 21+ years-old consumers with the following null and alternative hypothesis:

$H_0: \mu=26.8\\\\H_a:\mu> 26.8$

The result of the test is to reject the null hypothesis.

This means that there is evidence to support the claim that beer and cider consumption was higher than the national average in Milwaukee in 2017 .

6 0

3 years ago

On Friday, you raked leaves for 4 neighbors, on saturay you raked leaves for 5 neighbors, and on Sunday you raked leaves for 3 n

Jet001 [13]

Answer:

The amount paid by each house is $11.25

Step-by-step explanation:

Let the amount paid by each house is $K

Number of neighbors you worked for on Friday = 4

So the amount paid by all of them = 4K

Number of neighbors you worked for on Saturday = 5,

similarly amount paid = 5K

Number of neighbors you worked for on Sunday = 3,

here amount paid = 3K

Also, in total the amount paid = $135

So, Amount paid on {Friday + Saturday +Sunday} = Total Amount

or, 5K + 4K + 3K = $135

or, 12K = 135

⇒K =135/12 = $11.25

So, the amount paid by each house is $11.25

6 0

3 years ago