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Natasha_Volkova [10]
3 years ago
13

William got scores of q sub 1, , and q sub 3 on three quizzes.

Mathematics
1 answer:
USPshnik [31]3 years ago
3 0

Answer:

a. The average is  =(++) .

b. He can use the formula  =−− q sub 3 , equals 3 x minus , q sub 1 , minus , q sub 2. He will need a score of  =()−−= q sub 3 , equals 3 open 90 close minus 85 minus 88 equals 97 on his third quiz.

Step-by-step explanation:

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Use the functions f(x) = 4x − 5 and g(x) = 3x + 9 to complete the function operations listed below.
vlada-n [284]
A.  (f + g)(x) = f(x) + g(x) = 4x - 5 + 3x + 9 = 7x + 4

B. f.g (x)   = f(x) * g(x) = (4x - 5)*(3x + 9) = 12x^2 + 36x -  15x - 45
                =  12x^2 + 21x - 45

C  Replace the x in f(x) by g(x):-
  =  4(3x + 9) - 5
  = 12x + 36 - 5
  = 12x  + 31
8 0
3 years ago
Nguyen is decorating the room for her sister’s baby shower party. She is wrapping Vietnamese conical hats in baby prints tissue
JulsSmile [24]
So the best and correct answer is C because this is how you do it The surface area of the cone has formula

pi * radius * ( radius + sqrt ( height^2 + radius^2)) =
pi * radius^2 + pi * radius * sqrt( height^2 + radius^2)

However, this includes the base of the cone and the hats do NOT have
that. "The hats are shaped like a cone with NO BASE", says the 3rd sentence.

So the formula becomes pi * radius * sqrt( height^2 + radius^2)

diameter = 16
radius = 8
height = 9

The surface area of ONE of the hats is pi * 8 * sqrt( 9^2 + 8^2)
= pi * 8 * sqrt( 81+64)
= pi * 8 * sqrt(145)
302.63828053.....


21 of them is 21 * 302... = 6355.40689112841343251026086.....
6 0
3 years ago
Read 2 more answers
i will give brainliest.The product of 5 and the sum of 12 and a certain number is 10. What is the number​
rjkz [21]

Answer: x=-10

Step-by-step explanation:

5*(12+x)=10

Distribute

60+5x=10

Subtract(60)

5x=-50

x=-10

<em>Hope it helps <3</em>

7 0
3 years ago
Read 2 more answers
I need help asap please!
Sunny_sXe [5.5K]

Answer:

Check the attachment as solved.

brainliest please ;)

5 0
3 years ago
How do you turn four and six hundredths into a decimal
Ivahew [28]

it would be 4.06 because 6/100 is 0.06 so 4.06 is your answer.

7 0
3 years ago
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