3 years ago

Please help asap 15 pts

Mathematics

2 answers:

Nastasia [14]3 years ago

7 0

4x^2y + 12z^2 + 6x^2y - 2z

10x^2y + 12z^2 - 2z; is your answer ((:

alexandr402 [8]3 years ago

5 0

= 10x^2y + 12z^2 - 2z

Answer is D.

10x^2y + 12z^2 - 2z

You might be interested in

Omggggggggg please please help meeeeeeeeee

Lera25 [3.4K]

Answer:

Step-by-step explanation:

9-7= 2

2<3

8 0

2 years ago

Read 2 more answers

Your fitness tracker shows you are averaging 9000 steps per day. What percentage increase in the number of steps per day must yo

Schach [20]

Answer:

hey bro hows your day

Step-by-step explanation:

7 0

3 years ago

Last year , Henry opened an investment account with 5800. At the end of the year ,the amount in the account had increased by 29.

joja [24]

Answer:

Percent increase in dollar = $1,711
Total in account = $7,511

Step-by-step explanation:

The money in the account had increased by 29.5%.

This increase in dollars is:

= Amount in account * percentage increase

= 5,800 * 29.5%

= 5,800 * 0.295

= $1,711

The total in his account was therefore:

= Amount invested + increase

= 5,800 + 1,711

= $7,511

8 0

2 years ago

A lab is testing the amount of a certain active chemical compound in a particular drug that has been recently developed. The man

Mazyrski [523]

Answer:

The 95% confidence interval is "87.94, 91.86".

Step-by-step explanation:

The given values are:

Sample batches,

n = 25

Sample mean concentration,

$\bar{x}$ = 89.9 mg

Amount of chemical,

σ = 5

α = 0.05

The critical value from Z table will be:

= $Z(\frac{\alpha}{2} )$

= $Z(\frac{0.05}{2} )$

= $1.96$

Now,

The confidence interval will be:

= $\bar{x} \pm Z(\frac{\alpha}{2} )\times \frac{\sigma}{\sqrt{n} }$

On substituting the values, we get

= $89.9 \pm Z(\frac{0.05}{2})\times \frac{5}{\sqrt{25}}$

= $89.9 \pm Z(\frac{0.05}{2})\times \frac{5}{5}$

= $89.9 \pm1.96\times 1$

Lower limit will be:

= $89.9 -1.96\times 1$

= $87.94$

Upper limit will be:

= $89.9 +1.96\times 1$

= $91.86$

7 0

2 years ago

) On a number line, what is the distance between -5 and -3? Respond in terms of absolute value.

gavmur [86]

Answer:

Step-by-step explanation:

There are 2 units of distance separating -5 and -3.

7 0

3 years ago

Read 2 more answers