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devlian [24]
3 years ago
9

R to the 2nd power -6r-8=0

Mathematics
1 answer:
Natasha2012 [34]3 years ago
3 0
R² - 6r - 8 = 0
r² = 7.12
r = -1.12
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A cook mixes 4 pounds of rice into 5 quarts of boiling water.
professor190 [17]
I think you could times 4 and 5 to get 20
5 0
3 years ago
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Kristian buys a meal for $8.40 calculate the fraction of the $72 after buying the computer game which costed $32.40 and the meal
brilliants [131]

Answer:

After buying the meal and the computer game, Kristian has 43.33% of his money left.

Step-by-step explanation:

Given that Kristian buys a meal for $ 8.40, to calculate the fraction of the $ 72 after buying the computer game which cost $ 32.40 and the meal, the following calculation must be performed:

72 = 100

8.40 + 32.40 = X

72 = 100

40.80 = X

40.80 x 100/72 = X

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7 0
3 years ago
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Colt1911 [192]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
Solve for x. 5x - 1 = 26 x = x = 5 x = -5
Doss [256]

Answer:

x = 27/5

Step-by-step explanation:

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x = 27/5

5 0
3 years ago
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USPshnik [31]
To find the inverse
replace f(x) with y
switch all x and y
solve for y
replace y with f⁻¹(x)

f(x)=x^2-9
y=x^2-9
x=y^2-9
x+9=y^2
sqrt both sides
\sqrt{x+9}
replace
f⁻¹(x)=\sqrt{x+9}

that is the inverse
5 0
3 years ago
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