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nikitadnepr [17]
2 years ago
7

Which of the following statements best describes the value of the expression 2x + 12, when x = 3?

Mathematics
2 answers:
arlik [135]2 years ago
6 0
B. the result is a prime number
Lapatulllka [165]2 years ago
4 0
The answer to the equation is 18 which is a composite whole number. the answer is C
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Can sombody please help me with this math problem?
Molodets [167]

y=2/3y-3


1. y = 2/3 (9)-3   multiply 9 and 2 =18/3

 y=18/3-3 divide 18 and 3 =6

y=6-3 subt. 3

y=3



2.  -11=2/3x - 3

 -11+3 = 2/3 x   add 3 to both sides to cancel -3

 -8=2/3 x  

(3/2)-8 = (2/3)3/2 x multiply both sides by reciprical of 2/3

-24/2 = x  divide

-12=x

4 0
3 years ago
Which of the following could be the side measures of a right triangle?
Lady bird [3.3K]

Answer:

A

Step-by-step explanation:

Because a^2+b^2=c^2 in a right triangle by Pythagorean's Theorem.  So, the only one that works is 3^2+4^2=5^2 because 9+16=25.

4 0
3 years ago
Read 2 more answers
What is the GCF of 42 and 48
otez555 [7]
GCF for 42 & 48 is 6
3 0
3 years ago
If D is the midpoint of CE, CD= 9x-7, and DE= 3x+17, find CE
tatuchka [14]
Hello!

Since D is the midpoint and the two equations are and both sides of point D the equations equal each other

9x - 7 = 3x + 17

Now you solve it algebraically

Add 7 to both sides

9x = 3x + 24

Subtract 3x from both sides

6x = 24

Divide both sides by 6

x = 4

Now we put this into both equations and add them

9(4) - 7 = 29
3(4) + 17 = 29

29 + 29 = 58

The answer is 58 units

Hope this helps!
3 0
3 years ago
At a New Car Dealership, a particular model comes in 3 different trim levels (CX, DX,
xxMikexx [17]

Answer:

B. 48

Step-by-step explanation:

Multiply all the numbers of choices together.

trim levels: 3

colors: 4

interior: 4

number of combinations = 3 * 4 * 4 = 48

7 0
3 years ago
Read 2 more answers
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