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Ostrovityanka [42]
3 years ago
13

(2x + 3) - (-8 - 2x)

Mathematics
1 answer:
masha68 [24]3 years ago
7 0

Answer: 4x+11

Step-by-step explanation: Distribute the negative to the -8 and -2x. This will make 2x+3+8+2x. Combine like terms and you will get 4x+11. Hope this helps!

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zalisa [80]

No, (2,2) is not solution of y < 4x - 6

Step-by-step explanation:

To solve above linear problem, we use standard method of  Back- Substitution.

First of all, A point (2,2) only becomes solution of equation, if it satisfies equation y < 4x - 6.

Here, the  y < 4x - 6  seems to be like a linear equation.

In this Equation, using  Back- Substitution method,

Point (2,2) : first digit 2 corresponds to x- coordinate and second digit 2 corresponds to y-coordinate.

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By putting value of x and y in equation (1),

Equation becomes,

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Finally, the result came is not true. Therefore, (2,2) is not solution for equation

y < 4x - 6          

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3 years ago
A student’s score on an exam is an integer between 0 and 100. A score of 90 to 100 is an A, 80 to 89 is a B, 70 to 79 is a C, 60
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Probability of A (lies between the values of 90 to 100 = 11).

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B.

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D.

Probability of passing lies between 60 to 100 = 41 scores

41/50 = 0.82

Probability of student who passed having a B = 0.20/0.82 = 0.244

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