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3 years ago

Given the function below, if f(x) = -1, find

Mathematics

1 answer:

dmitriy555 [2]3 years ago

6 0

Answer:

x = -3

Step-by-step explanation:

f(x) = 4x + 11

f(x) = -1

Substitute -1 for f(x)

-1 = 4x + 11

Subtract 11

-12 = 4x

Divide by 4

-3 = x

x = -3

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murzikaleks [220]

Here's link to the answer:

tinyurl.com/wpazsebu

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3 years ago

Ava has 34 candy bars. If

aliya0001 [1]

$\bf Step-by-step~explanation:$

If Ava has 34 candy bars, and each box can hold 5 bars, then we need to find out how many boxes that are filled up.

$\bf Step~1:$

Divide the number of candy bars (34), by the number each box can hold (5)

$\bf\frac{34}{5}=6.8$

Since we cannot have 6.8 boxes, we have to round down to 6.

$\boxed{\bf Our~final~answer:~6~boxes}$

$\bf Check~our~answer:$

To check our answer, we multiply the number of boxes (6), by the number of bars in each box (5), to get 30. We add Ava's extra bars (4), and we get the number we started off with: 34. This proves our answer is correct!

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3 years ago

I need help finding the lowest term for -8/9+11/15

Liono4ka [1.6K]

Answer:

-7/45

Step-by-step explanation:

First, find the lowest common denominator for 9 and 15. It's 45. Make both fractions over 45 by multiplying the top and bottom by the same number.

$-\frac{8}{9} +\frac{11}{15}$

$= -\frac{8*5}{9*5} +\frac{11*3}{15*3}$ Since 15*3=45, multiply the top by 3 also. Since 9*5=45, multiply the top by 5 also.

$= -\frac{40}{45} +\frac{33}{45}$

$= \frac{-40+33}{45}$ Combine the fractions

$= -\frac{7}{45}$ Answer in lowest terms

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3 years ago

art supplies in washington DC cost 28 dollars if the sales tax is 6 percent what was the total cost of supplies

vova2212 [387]

(28 : 100) *6 = 1.68 (tax)

28 + 1.68 = 29.68 (total cost)

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3 years ago

PLEASE ANSWER THIS 30 POINTS BRAINLIEST WILL BE GIVEN PICTURE INCLUDED!!

den301095 [7]

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a^2 - 9a + 14 = 0
(a - 7) (a - 2)

a - 7 = 0, a = 7
a - 2 = 0, a = 2

{2,7}

a^2 + 9a + 14 = 0
(a + 7) (a + 2)

a + 7 = 0, a = -7
a + 2 = 0, a = -2

{-2, -7}

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3 years ago

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