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Ulleksa [173]
3 years ago
9

The mean of three numbers is 8Two of the numbers are 6 and 11Work out the third number.​

Mathematics
1 answer:
Natali [406]3 years ago
5 0

Answer:

x=7

Step-by-step explanation:

→ Form an equation

\frac{x+6+11}{3}=8

→ Solve

x+6+11=24\\

x=7

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-2 times g(4) when g(x) =-x squared+(4x)-11
andrezito [222]

Answer:

+22

Step-by-step explanation:

Given g(x) = -x^2 + 4x - 11, g(4) is -(4)^2 + 4(4) - 11, or just -11.

Then -2 times g(4) = -2(-11) = +22

3 0
3 years ago
Wayne purchased 15 pounds of bird seed for $36.75 at Hank's
Sonbull [250]

Answer:

15

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Help pls 50 points rewarded
dangina [55]

-4x+11y=15

x=2y

-4*2y+11y=15

x=2y

-8y+11y=15

x=2y

3y=15 //3

x=2y

y=5

x=2*5

y=5

x=10

x=10

y=5

5 0
3 years ago
Read 2 more answers
giving the brainliest answer to who ever can help me out!!! AND has the correct answer need help asap!?!!
Afina-wow [57]

Answer:

caca water

pee water

Step-by-step explanation:

6 0
3 years ago
What is (x – 3)(2x + 1)
umka21 [38]

Answer:

(x – 3)(2x + 1)

Expand the terms

We get

2x² + x - 6x - 3

Final answer

2x² - 5x - 3

Hope this helps you.

3 0
3 years ago
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