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Ivanshal [37]
3 years ago
8

F(x)=x^(2)+6x-78 completing the square fill in the blanks: f(x)=(x+blank)^2+blank

Mathematics
1 answer:
krek1111 [17]3 years ago
8 0
The blank: f(x) = (x+3)^2-78+9
You can combine the negative 78 and 9 if you want to, but that should be the next step for that problem.
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PLZ HELP AND EXPLAIN THIS PLZ
AURORKA [14]

Answer:

A. <u>4</u> trucks will make $80 because 4 × 20 = 80, so they need to wash <u>38</u> cars to make the other $380 because 38 × 10 = 380.

($80 + $380 = $460)

B. <u>15</u> trucks will make $300 because

15 × 20 = 300, so they need to wash <u>16</u> cars to make the other $160 because 16 × 10 = 160. ($300 + $160 = $460)

C. <u>21</u> trucks will make $420 because

21 × 20 = 420, so they need to wash <u>4</u> cars to make the other $40 because 4 × 10 = 40.

($420 + $40 = $460)

D. <u>27</u> trucks will make $540, so they won't have to wash any cars because they would have already exceeded their goal of $460.

Not sure what to do for letter E. Sorry. I hope the rest makes sense though :)

7 0
2 years ago
At camp in Green Bay, Wisconsin, 7/9 of the participants were from Wisconsin. Of that group 3/5 were 12 years old. What fraction
In-s [12.5K]
Since the problem stated that 7/9 of the participants were from Wisconsin, so 2/9 of it were not from Wisconsin. Now out of 7/9 participants, 3/5 of them were 12 years old, so 2/5 of them are not 12 years old. Since we now know the fractions, we'll get the equation 7/9 x 3/5 multiply 7 and 3 then divide it to the product of 9 and 5 to have the answer of 7/15. 7/15 of the participants of the camp in Green Bay is from Wisconsin and are 12 years old.
4 0
3 years ago
Read 2 more answers
Which of these numbers is in the solution set of x-15=5?
BlackZzzverrR [31]

Answer:

x=20

Step-by-step explanation:

x-15=5

x=5+15

x=20

3 0
2 years ago
Find the value of w.
ch4aika [34]
W?
you mean x or z or O ???
xoxo
3 0
3 years ago
Make r the subject of the formula V=Tr?h
V125BC [204]

Answer:

\sqrt{V / Th}

Step-by-step explanation:

V=Tr^2h

V / T = r^2 h

V / Th = r^2

√V / Th

\sqrt{V / Th}

8 0
2 years ago
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