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mestny [16]
3 years ago
14

Evaluate the expression for the given value of x.−4x + 7 for x = −4

Mathematics
2 answers:
docker41 [41]3 years ago
5 0

Answer:

23

Step-by-step explanation:

-4x+7

-4(-4)+7=16+7=23

solmaris [256]3 years ago
5 0

Answer:

23

Step-by-step explanation:

-4x + 7 =

-4(-4) + 7 =

16 + 7 = 23

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zavuch27 [327]

s = ut +  \frac{1}{2} a {t}^{2}  \\ s = 10( \frac{1}{2} ) +  \frac{1}{2} ( - 2) {( \frac{1}{2}) }^{2}  \\ s = 10( \frac{1}{2} ) +  \frac{1}{2} ( - 2)(  \frac{1}{4} ) \\ s = 5 + ( - 1)( \frac{1}{4} ) \\ s = 5 + ( -  \frac{1}{4} ) \\ s = 5 -  \frac{1}{4}  \\ s =  \frac{20}{4}  -  \frac{1}{4}  \\ s =  \frac{19}{4}

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2 years ago
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OlgaM077 [116]

Step-by-step explanation:

sue = 18 sweets

tony= 18 sweets

(sue)      S= (18 - x)-5

(tony)     T=(18 + x) ÷ 2

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6 0
3 years ago
At the gas station, each liter of gas costs $3 but there's a promotion that for every beverage you purchase you save $0.20 on ga
k0ka [10]

Answer:

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Step-by-step explanation:

as the more you spend the more u save

6 0
3 years ago
Factor x^4+xy^3+x^3+y^3 completely showing work.
babymother [125]

Answer:

Step-by-step explanation:

Hello, please consider the following.

x^4+xy^3+x^3+y^3\\\\=x^3*x+x*y^3+x^3+y^3\\\\=x(x^3+y^3)+x^3+y^3\\\\\boxed{=(x+1)(x^3+y^3)}\\

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3 years ago
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ivolga24 [154]

Answer:

19.7 or 20 rounded

Step-by-step explanation:

A = $ 1,861.65

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I (interest) = $ 1,231.65

Continuous Compounding Formulas (n → ∞)

Calculate Accrued Amount (Principal + Interest)

A = Pe^rt

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P = A / e^rt

Calculate rate of interest in decimal, solve for r

r = ln(A/P) / t

Calculate rate of interest in percent

R = r * 100

Calculate time, solve for t

t = ln(A/P) / r

3 0
3 years ago
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