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kow [346]
3 years ago
12

Evaluate the expression: 2b + 9 when b = 3 * A 3 B 11 C 14 D 15

Mathematics
2 answers:
Aleks [24]3 years ago
5 0

Answer:

14

Step-by-step explanation:

ryzh [129]3 years ago
3 0

Step-by-step explanation:

2b + 9

b = 3

6+9

=15

!!!!!!!!!!!!

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explain the two different answers you can get when solving an equation and the variable is dropped out.
Alexandra [31]
To give a simple answer

if you consider the equation to be that of a line.
then if the variables cancel out, then the two lines will have the same slope.

two lines with the same slope fall under two categories. Parallel lines, and lines on top of each other

parallel lines have no solutions since the lines never cross each other
lines on top of each other have infinitely many solutions  since they "cross" everywhere on the line
3 0
4 years ago
You want to put 2500 in a simple interest account it has a 4 % annual interest rate how long will it take you to earn $200 in in
Alex787 [66]

Answer:

2 years

Step-by-step explanation:

Let Principal = 2500

Let Rate = 4%

Let time = x

Simple Interest = Principal x time x rate

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Brainliest?

7 0
3 years ago
This Question: 1 pt
guapka [62]

Answer:

9x² - 7x - 9

Step-by-step explanation:

Two sides

(6x + 7) + 8x = 14x + 7

total perimeter - two sides = Third side

9x² + 7x - 2

-      (14x + 7)

––––––––––

9x² - 7x - 9

5 0
3 years ago
Which shows 2^-2 * 2^6 in exponential form
kompoz [17]

Answer:

16

Step-by-step explanation:

2^-2=0.25

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times

=16

5 0
3 years ago
4) Linear?<br> y=1+5x?<br> O True<br> O False
____ [38]

Answer:

true

Step-by-step explanation:

all equations in the form of y=mx+b is linear

3 0
3 years ago
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