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prohojiy [21]
2 years ago
10

2x+7y=-20, y=3x+7. solve using elimination

Mathematics
1 answer:
Setler79 [48]2 years ago
8 0

Answer:

(x,y) = (-3,-2)

Step-by-step explanation: Please brainliest!

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A town has a population of 20000 and grows at 4% every year. What will be the population after 6 years, to the nearest whole num
zaharov [31]

Answer:

25306

Step-by-step explanation:

a=starting value = 20000

r=\text{rate = }4\% = 0.04

r=rate = 4%=0.04

\text{Exponential Growth:}

Exponential Growth:

b=1+r=1+0.04=1.04

b=1+r=1+0.04=1.04

\text{Write Exponential Function:}

Write Exponential Function:

y=20000(1.04)^x

y=20000(1.04)  

x

 

Put it all together

\text{Plug in time for x:}

Plug in time for x:

y=20000(1.04)^{6}

y=20000(1.04)  

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y= 25306.38037

y=25306.38037

7 0
2 years ago
The coefficient of x is
elena-s [515]

Answer:

coefficient is a number in front of a variable. For example, in the expression x 2-10x+25, the coefficient of the x 2 is 1 and the coefficient of the x is -10. The third term, 25, is called a constant.

3 0
2 years ago
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
timurjin [86]

Answer:

f=22 degrees, g=89 degrees

step by step explaination:

When two lines are parallel to one another, and a line is drawn between them, any angle labeled will be equal to the angle on the opposite side of the middle line. This would make f=h, g=d, and even the angle 69 equal to angle e.

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3 years ago
612.00 in scientific notation
FinnZ [79.3K]
612.00 in scientific notation is 6.12×10^2
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The radius of a circle is 8 units.<br> What is the diameter of the circle?<br> units
kondaur [170]

Answer:

16

Step-by-step explanation:

radius is 1/2 of diameter

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