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kirill115 [55]
3 years ago
7

Roy and Sam start solving the equation as follows.

Mathematics
1 answer:
denpristay [2]3 years ago
7 0

Answer:

The correct option is D.

Step-by-step explanation:

The given equation is

-3x+4=5x-6

According to the addition property of equality a=b and a+c=b+c are equivalent equations.

Use addition property of equality, add 3x on both the sides.

-3x+4+3x=5x-6+3x

4=8x-6

Therefore Sam's work is incorrect because he make calculation mistake.

According to the subtraction property of equality a=b and a-c=b-c are equivalent equations.

Use subtraction property of equality, subtract 5x from both the sides.

-3x+4-5x=5x-6-5x

-8x+4=-6

Therefore Roy's work is correct because he used subtraction property.

Option D is correct.

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Marie has 8 hours to write a 45 page chatper for her book Marie writes at a constant speed of 4 pages per hour will Marie comple
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Step-by-step explanation:

Marie has 8 hours to write 45 page chapter

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3 years ago
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8_murik_8 [283]

Answer:

x = 9 and ∠ B = 40°

Step-by-step explanation:

See the diagram given with the question first.

Here we have ∠ A = ∠ B {They are corresponding angles}

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Hence, 5x - 5 = 3x + 13

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4 years ago
Which of the following is the minimum value of the equation y = 2x2 + 5?
raketka [301]
(0, 5) is the minimum value.

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y = 2x^2 + 0x + 5

We plug 0 into f(x), establishing every x-value as 0.

f(0) = 2(0)^2 + 5
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5 is now your vertex’s y-value. Plot the two values together.

(0, 5)

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3 years ago
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Answer:

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Step-by-step explanation:

Thats how you basically do it now try it!

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3 years ago
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