3 years ago

Please answer asap. NO SCAM LINKS.

Mathematics

1 answer:

solong [7]3 years ago

4 0

B is the answer I did that last week at my school

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If x = -2, then the equation is 2x = -4. True or False

Alex777 [14]

Answer:

true

Step-by-step explanation:

2(-2)=-4

6 0

3 years ago

The area A(r)(in square meters) of a circular algae colony with radius r meters is given by A(r)=pir^2. Basically that's A(r)= p

Taya2010 [7]

Answer:

The expression provided by the area (square meters) is given by: $A(t) = pi \frac{100t^{2} }{9}$ .

Step-by-step explanation:

The area of the algae colony is a function of the radius r (meters), so $A(r) = \pi r ^ 2$ .

The radius of the circle formed by the algae colony is a function of time t (in minutes), so $M (t) = \frac{10t }{3}$ . So,

$A(r) = \pi r ^ 2$ [Substituting the expression for radius]

$A(t) = pi (\frac{10t }{3})^{2} = pi \frac{100t^{2} }{9}$

Then the expression provided by the area (square meters) is given by: $A(t) = pi \frac{100t^{2} }{9}$ .

7 0

3 years ago

I will mark brainlist please help what is the vertex of the parabola

amm1812

The answer is (1,-9).

4 0

2 years ago

How do you write -3( 1 - 8m - 2n) in standard form.

Ulleksa [173]

You distribute the three into the numbers in parentheses. -3+24n+6n. Then combine like terms. -3+30n

But I may be wrong.

7 0

3 years ago

Helppppppppppppppppppppppppppppppppp

seraphim [82]

Answer:

b. (1, 13).

Step-by-step explanation:

Here's a pic of my work. You can put either equation on the other side of the equal sign, because they both equal Y. therefore, they equal each other.

5 0

3 years ago

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