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4 years ago

11

What is the density of a substance that has a mass of 25 grams and a volume of 100 ml? Need help asap

1 answer:

zhuklara [117]4 years ago

6 0

Answer:

0.25

Step-by-step explanation:

density= m/v

density= 25/100

density=.25

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Please help!!! How many coefficients does this polynomial have in its complete form, including any missing terms?

frez [133]

-5x^3 + 2x^2 + 1

a coefficient is the number that is multiplied by the variable.For instance, the coefficient of 2x is 2....because 2 (the number) is multiplied by the variable x.

so in ur problem....there are 2 coefficients..-5 and 2.

** the number 1 is not a coefficient, it is a constant...a " loner " with no variables (letters) attached.

** and if u have just the letter...such as n, the coefficient to that is 1 but the one is just not written...it is actually 1n.

okay...I am gonna shut up now :)

7 0

3 years ago

angel's dad bought a television for her completing all of her digital learning day lesson. he want to warp the gift. the box mea

atroni [7]

Answer: 13 sheets of paper

Step-by-step explanation:

We are given the dimensions of the box and the wrap paper:

Box:

$(56 in)(8 in)(36 in)$

Warp paper:

$(26 in)(17 in)$

Now we need to find the surface area of the box and the area of the wrap paper:

Box:

$surface_{1}=(56 in)(8 in)(2)=896 in^{2}$

$surface_{2}=(8 in)(36 in)(2)=576 in^{2}$

$surface_{3}=(56 in)(36 in)(2)=4032 in^{2}$

$surface-area=896 in^{2}+576 in^{2}+4032 in^{2}=5504 in^{2}$

Warp paper:

$area=(26 in)(17 in)=442 in^{2}$

Dividing the area of the box by the area of the paper:

$\frac{surface-area}{area}=\frac{5504 in^{2}}{442 in^{2}}=12.45 \approx 13$

This means Angel's dad needs to purchase 13 sheets of wrapping paper.

4 0

4 years ago

If the side length of a square is 4 inches, its area is __ square inches and its priemeter is __ inches.

Grace [21]

Answer:

16 for both

Step-by-step explanation:

4 0

3 years ago

An employee works 22 days per month. if they work an average of 8 1/4 hours per day how many hours do they work per month?

Schach [20]

Answer:

181 $\frac{1}{2}$

Step-by-step explanation:

To find how many hours they work per month multiply the amount of hours they work each day by the amount of days they work in a month:

$22 *8\frac{1}{4} = 181\frac{1}{2}$

They work $181\frac{1}{2}$ hours per month.

Hope this helps :)

3 0

3 years ago

Read 2 more answers

In 2010, there were 311 middle schools in Virginia. In 2016, there were 306. By what percent did the number of middle schools in

Nataly_w [17]

Answer:1.6%

Step-by-step explanation: no of students in 2010=311

no of students in 2016=306

difference=311-306

=5

%decrease=5/311 x 100

3 0

3 years ago