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Zarrin [17]
2 years ago
5

1)4-2(x + 19) = 50 2)7(x-3)-14=70

Mathematics
2 answers:
zalisa [80]2 years ago
8 0
2x+38=50
2x+38-38=50 -38
2x =12
2x/2 =12/2
x=6
mojhsa [17]2 years ago
7 0

Answer:

1. x=4

2. x=15

Step-by-step explanation:

1. Add '-42' to each side of the equation.

42 + -42 + -2x = 50 + -42

Combine like terms: 42 + -42 = 0

0 + -2x = 50 + -42

-2x = 50 + -42

Combine like terms: 50 + -42 = 8

-2x = 8

Divide each side by '-2'.

x = -4

Simplifying

x = -4

2.

Add '35' to each side of the equation.

-35 + 35 + 7x = 70 + 35

Combine like terms: -35 + 35 = 0

0 + 7x = 70 + 35

7x = 70 + 35

Combine like terms: 70 + 35 = 105

7x = 105

Divide each side by '7'.

x = 15

Simplifying

x = 15

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Answer:

False?

Step-by-step explanation:

I'm pretty sure it's false because wouldn't it simplify to 5y? Sorry if I'm wrong. :)

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Determine the x-intercepts of the function. Check all that apply. (–2, 0) (–1, –2) (0, 0) (1, 0) (2, 0)
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Consider the continuous random variable x, which has a uniform distribution over the interval from 110 to 150. The probability t
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Answer:

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Step-by-step explanation:

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For 110 and 150,

Mean, xbar = (150 + 110)/2 = 130

Standard deviation, σ = √((150-110)²/12 = 11.55

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We need to standardize 120 & 125

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We'll use data from the normal probability table for these probabilities

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Hope this Helps!!!

3 0
3 years ago
ON YOUR OWN
vichka [17]
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