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Lina20 [59]
2 years ago
12

Find x. -2(6+x)=18-3x

Mathematics
1 answer:
Alja [10]2 years ago
3 0

Answer:

x=30

Step-by-step explanation:

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I need help please!!
kobusy [5.1K]

Answer:DB \cong VT

Step-by-step explanation:

All 3 sides need to be congruent.

5 0
1 year ago
What is the area of a semicircle whose perimeter is 72cm
Nuetrik [128]

Answer:

A = 307.9 sq/cm

Step-by-step explanation:

Find the radius of the semi-circle

diameter + half the circumference = 72 cm

2r + pi*r = 72

r(2+pi) = 72

 

r = 72%2F%28%282%2Bpi%29%29

r = 14

:

what will be the area of that semicircle?

A =1%2F2*pi%2A14%5E2

A = 307.9 sq/cm

7 0
3 years ago
Write an equation for an exponential growth function where the initial population is 74 and the population quadruples during eac
Liono4ka [1.6K]
If the population quadruples every period say hour, that means the "rate of growth" is 300%, so whatever the current amount, increased by 3 times as much is 4 times the current amount, or a quadrupled amount.

\bf \qquad \textit{Amount for Exponential Growth}\\\\
A=I(1 + r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
I=\textit{initial amount}\to &74\\
r=rate\to 300\%\to \frac{300}{100}\to &3.00\\
t=\textit{elapsed time}\\
\end{cases}
\\\\\\
A=74(1+3)^t\implies A=74(4)^t
6 0
3 years ago
The set of points (–3, 7), (0, –3) and (6, 1) are plotted in the coordinate plane. Which of the following statements is true abo
irina1246 [14]

Answer: A

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The sum of 5 and twice a number.
snow_lady [41]

Answer:

5+x2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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