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3 years ago

Susan buys the items listed below at a grocery store.

Mathematics

2 answers:

Yanka [14]3 years ago

8 0

Answer:

Susan should get a loan and jjustpay without stressing herself and calculaitingthis

Step-by-step explanation:

galina1969 [7]3 years ago

3 0

She uses $31.99 to pay for the items.

2(12.36) + 1.98 + 3.49
= 24.72 + 5.47
= 30.19 (cost of all items)

$30.19 + 0.80 = 31.99

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One angle is 25° bigger than another angle. the two angles are supplementary. what is the measure of the two angles

Rama09 [41]

1st angle - x⁰
2nd angle - (x+25)⁰
The angles are supplementary,
so
x+x+25=180
2x=155
x=77.5⁰ -1st angle

77.5+25=102.5⁰ - 2nd angle

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3 years ago

Samuel helps his brother paint walls during his summer vacation he charges $10 for the first room and $5 for each additional roo

Delicious77 [7]

10+5x=50
subtract ten from both sides
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divide five from both sides
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4 years ago

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Brut [27]

Answer:

(f+g)(2) = 4

(f-g)(4) = 8

(f ÷g)(2) = 7

(f x g)(1) = 0

Step-by-step explanation:

We are given these following functions:

$f(x) = 2x + 3$

$g(x) = x - 1$

(f+g)(2)

$(f+g)(x) = f(x) + g(x) = 2x + 3 + x - 1 = 3x - 2$

At $x = 2$

$(f+g)(2) = 3(2) - 2 = 6 - 2 = 4$

Then

(f+g)(2) = 4

(f-g)(4)

$(f-g)(x) = f(x) - g(x) = 2x + 3 - (x - 1) = 2x + 3 - x + 1 = x + 4$

At x = 4

$(f-g)(4) = 4 + 4 = 8$

Then

(f-g)(4) = 8

(f ÷g)(2)

$(f \div g)(x) = \frac{f(x)}{g(x)} = \frac{2x+3}{x-1}$

At x = 2

$(f \div g)(2) = \frac{7}{1} = 7$

Then

(f ÷g)(2) = 7

(f x g)(1)

$(f \times g)(x) = f(x)g(x) = (2x+3)(x-1) = 2x^2 -2x + 3x - 3 = 2x^2 + x - 3$

Then

$(f \times g)(1) = 2(1)^2 + 1 - 3 = 3 + 1 - 3 = 0$

(f x g)(1) = 0

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3 years ago