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Molodets [167]
2 years ago
13

We have an object with a density or 620 g/cm and a volume of 75cm. What is the mass of the object

Mathematics
2 answers:
katovenus [111]2 years ago
6 0

Answer:

420 cm

Step-by-step explanation:

Marianna [84]2 years ago
5 0

Answer:

hi wehere are fromkdfnckr

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Solve each system of linear equations albebraically
ANEK [815]

Step-by-step explanation:

1.\\\left\{\begin{array}{ccc}y=3x&(1)\\2y=6x&(2)\end{array}\right\\\\\text{Substitute (1) to (2):}\\\\2(3x)=6x\\6x=6x\qquad\text{subtract}\ 6x\ \text{from both sides}\\6x-6x=6x-6x\\0=0\qquad\text{TRUE}\\\\Answer:\ \text{Infinitely many solutions}\\\\\left\{\begin{array}{ccc}y=3x\\x\in\mathbb{R}\end{array}\right

2.\\\left\{\begin{array}{ccc}y=2x+5&(1)\\y-2x=1&(2)\end{array}\right\\\\\text{Substitute (1) to (2):}\\\\(2x+5)-2x=1\\2x+5-2x=1\qquad\text{combine like terms}\\(2x-2x)+5=1\\5=-1\qquad\text{FALSE}\\\\Answer:\ \text{No solution.}

3.\\\left\{\begin{array}{ccc}3x-2y=9\\-6x+4y=1&\text{divide both sides by 2}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}3x-2y=9\\-3x+2y=0.5\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad0=9.5\qquad\text{FALSE}\\\\Answer:\ \text{No solution.}

5 0
3 years ago
Find f(g(-4)) if f(x) =7/x+2<br> and g(x) = (x + 5)^2. Options: -5/2 , -7/2 , 37/4 , 7/3
aev [14]

Answer:

7/3

Step-by-step explanation:

f(x) =7/(x+2)

g(x) = (x + 5)^2

f(g(-4))=

First find g(-4)

g(-4) = (-4+5)^2

        =(1)^2 =1

Then find f(1)

f(1)= 7/(1+2)

   = 7/3

5 0
2 years ago
Tory was shopping for a new purse. The purse she wanted was $45. Tory
weeeeeb [17]

Answer:

20% off 45.00 is 36.00

Step-by-step explanation:

The difference is $9.00

8 0
2 years ago
Read 2 more answers
John’s weekly salary is 478.25. What is john’s annual salary?
sasho [114]
478.25 times 4(weeks in a month) =1913

1913 times 12 (months in a year)
EQUALS AROUND 22,956 a year , that would be your annual salary.
3 0
3 years ago
theo made sails for a model boat.He cut along the diagonal of a rectangular piece of cloth to make two sails as shown below.What
schepotkina [342]
Given:

A rectangular piece of cloth (dimensions):

L = length of the rectangle
W = width of the rectangle

The area of the rectangle is:

A = L x W

If the cloth is cut along the diagonal, the area of one sail will be half the area of the rectangle:

 A (one sail) = 1/2 (L x W) <span />
5 0
2 years ago
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