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2 years ago

Which math operation is used to execute the distributive property?

Mathematics

2 answers:

Allushta [10]2 years ago

7 0

Answer: Distributive property of multiplication over addition.

Hope this helps... Stay safe and have a great day!!! :D So the answer is C. Multiplication... :D

pashok25 [27]2 years ago

4 0

Answer: d , division . i think

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Y=4x+1<br> Y=-2x-5, help we solve these problems

Stella [2.4K]

$y=4x+1\\
y=-2x-5\\\\
4x+1=-2x-5\\
6x=-6\\
x=-1\\\\
y=4\cdot(-1)+1\\
y=-4+1\\
y=-3\\\\
\boxed{(x,y)=(-1,-3)}$

5 0

2 years ago

What is 2+2???????????????????????????????????

Eduardwww [97]

2 + 2 equals to 4

You can do it on the calculator too.

4 0

2 years ago

Read 2 more answers

A survey of an athletic shoe store’s customers showed that 8% of the customers run every day. The store has approximately 1900 c

dem82 [27]

Find 8% of 1900.

0.08 * 1900 = 152

So 152 customers run every day.

7 0

2 years ago

A won a race at the local fair by running 10.5 miles in exactly 2 hours. At this constant rate, how long does it take the same

Luba_88 [7]

Answer:

The dog will run the 21-mile race in 4.04 hours

Step-by-step explanation:

The first thing we need to do is find out how far he ran the race at the local fair in 1 hour.

To do this, we can set up a simple relationship:

If he ran 10.5 miles in 2 hours,

He will run x miles in 1 hour

Cross multiplying, we have

x = (10.5 X 1)/2 = 5.25 miles in 1 hour.

We can now comfortably say that he runs at the rate of 5.2miles/hr

He now goes to the state fair race, which is 21 miles long.

if he runs at the rate of 5.2 miles in 1 hour,

He will run 21 miles in y hours

y = 21 / 5.2 = 4.04 hours

The dog will run the 21-mile race in 4.04 hours

3 0

2 years ago

A local company makes a candy that is supposed to weigh 1.00 ounces. A random sample of 25 pieces of candy produces a mean of 0.

AysviL [449]

Answer:

$n=(\frac{2.58(0.004)}{0.001})^2 =106.50 \approx 107$

So the answer for this case would be n=107 rounded up to the nearest integer

Step-by-step explanation:

Information given

$\bar X= 0.996$ the sample mean

$s=0.004$ the sample deviation

$n =25$ the sample size

Solution to the problem

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

And on this case we have that ME =0.001 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

We can use as estimator of the real population deviation the sample deviation for this case $\hat \sigma = s$ / The critical value for 99% of confidence interval is given by $z_{\alpha/2}=2.58$ , replacing into formula (b) we got:

$n=(\frac{2.58(0.004)}{0.001})^2 =106.50 \approx 107$

So the answer for this case would be n=107 rounded up to the nearest integer

6 0

2 years ago