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3 years ago

An object has a volume of 7cm³ and a mass of 56g. What is its density in g/cm³?

Mathematics

1 answer:

Nastasia [14]3 years ago

5 0

Answer:8

Step-by-step explanation;Since you want to find the density but you already have the mass you do the inverse operation and divdie 56 by 7 and get 8.

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If m∠c=11x+85/3 and x=13 then what type of angle is c please help me with this

GuDViN [60]

Answer:

Acute angle

Step-by-step explanation:

Given that m<C = $\frac{11x + 85}{3}$ , to find out the type of angle angle C is, evaluate the expression given by substituting x = 13, in the expression.

m<C = $\frac{11x + 85}{3}$

m<C = $\frac{11(13) + 85}{3}$

m<C = $\frac{228}{3}$

m<C = 76°

Acute angles are less than 90°.

m<C is less than 90°, therefore it is an acute angle.

5 0

3 years ago

Factor 9y 2 - 12y 4.

vesna_86 [32]

Hope i understand it right

9y^2 -12y^4 = 3y^2 *(3 - 4y^2)

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3 years ago

Read 2 more answers

You and your friends decide to rent some studio time to make a CD. Big notes studio rinse for $100 plus $60 per hour. Great soun

Orlov [11]

About 3.8 hours, if asking for a whole number round to 4

8 0

3 years ago

Some Quadratic functions <br>I desperately need some help

Daniel [21]

Answer:

$\large\boxed{0=3x^2+2x-2}\\\\\boxed{0=-3x+3x^2-2}\\\\\boxed{0=-1x-2+3x^2}$

Step-by-step explanation:

$\text{The quadratic equation:}\\\\ax^2+bx+c=0\\\\a-coefficient\\\\c-constant\ term\\\\\text{We have}\ coefficient\ a=3\ \text{and}\ constant\ term\ c=-2.\\\\\text{Therefore the equation is:}\\\\3x^2+bx-2=0\\3x^2-2+bx=0\\bx+3x^2-2=0\\bx-2+3x^2=0\\-2+3x^2+bx=0\\-2+bx+3x^2=0$

6 0

3 years ago

Amanda spent a total of 70 minutes competing her chores this week. Write and solve an equation to represent the number of minute

gtnhenbr [62]

Answer:

28 minutes spent in washing the dishes.

Step-by-step explanation:

Given the table

Chore time in minutes

Sweeping 42

Dishes ?

Amanda spent a total of 70 minutes competing her chores this week

Total of 70 minutes spent

42 minutes spent in sweeping . to find the number of minutes Amanda spent in washing the dishes , subtract 42 minutes from the total time spent

let x be the number of minutes spent washing the dishes

$42+x=70$

To solve for x , subtract 42 from both sides

$42+x=70\\x= 70-42\\x=28$

28 minutes spent in washing the dishes.

4 0

3 years ago