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mixas84 [53]
2 years ago
13

Please help with this

Mathematics
1 answer:
Likurg_2 [28]2 years ago
3 0
Idk know the answer sorry
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Pls help ASAP REALLY NEED IT<br> SHOW WORK!
pychu [463]

Answer:

Image 1 (problem 3): infinitely many solutions

Image 2 (problem 1): one solution

Image 3 (problem 2): no solution

Step-by-step explanation:

Image 1 (problem 3):

2x + x + 9 = 8x - 5x + 9

Combine like terms on the left.

3x + 9 = 8x - 5x + 9

Combine like terms on the right

3x + 9 = 3x + 9

Since the equations are equal, the answer to this is infinitely many solutions.

Image 2 (problem 1):

2(4x + 3) = 12x + 2 * 4x + 4

Distribute the two inside the parenthesis on the left.

8x + 6 = 12x + 2 * 4x + 4

Multiply 2 and 4x.

8x + 6 = 12x + 8x + 4

Combine like terms on the right.

8x + 6 = 20x + 4

Subtract 20x from both sides.

-12x + 6 = 4

Subtract 6 from both sides.

-12x = -2

Divide both sides by -12.

x = 1/6

Since x comes out to a specific value, the answer is one solution.

Image 3 (problem 2):

54x + 1906x - 64 = 49(40x + 65)

Combine like terms on the left.

1960x - 64 = 49(40x + 65)

Distribute the 49 into the parenthesis on the right.

1960x - 64 = 1960x + 3185

This equation has no solution as you cannot subtract 1960x from both sides as that would eliminate the variable and since you cannot do that, you cannot progress in solving it.

7 0
1 year ago
5 times the sum of a number and 4 equals 9
goblinko [34]

Answer:

-2.2

Step-by-step explanation:

By using the equation 5*(4+x)=9, when you isolate x you get -2.2.

5 0
2 years ago
Find the value of p (x) = 4x^3 - 7x^2 - 5x + 43 if x= -3
Alla [95]

Answer:

p(x) =  {4x}^{3}  -  {7x}^{2}  - 5x + 43 \\  \\ p( - 3) =  {4( - 3)}^{3}  -  {7( - 3)}^{2}  - 5( - 3) + 43 \\ p( - 3) =  - 113

3 0
2 years ago
Read 2 more answers
Can someone help me please?
Flura [38]

Answer:

72/100

Step-by-step explanation:

6 0
2 years ago
Please help as soon as possible!!!!!
Talja [164]
To prove the triangles congruent using the SSS (side-side-side) postulate, you would need to know that d. HL=LM. You know that two of the sides are congruent, so this last side will satisfy the the postulate. 
6 0
2 years ago
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