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Ymorist [56]
3 years ago
9

CAN SOMEONE HELP ME!!!!!!!!!!!!!!!

Mathematics
2 answers:
pashok25 [27]3 years ago
8 0

Answer:

150 min

Work:

2 hours = 120 min, 120 + 30 min = 150 min

Crazy boy [7]3 years ago
3 0

Answer: 150 min

Step-by-step explanation:

2 hours = 120 min, 120 + 30 min = 150 min

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Find the parabola through
Anni [7]

Answer:

y = - 3x² - 24x - 60

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (- 4, - 12 ), thus

y = a(x + 4)² - 12

To calculate a substitute (- 7, - 39) into the equation

- 39 = a(- 7 + 4)² - 12 ( add 12 to both sides )

- 27 = 9a ( divide both sides by 9 )

- 3 = a

y = - 3(x + 4)² - 12 ← in vertex form

Expand (x + 4)²

y = - 3(x² + 8x + 16) - 12

   = - 3x² - 24x - 48 - 12

y = - 3x² - 24x - 60 ← in standard form

   = - 3(x²

3 0
3 years ago
Write one pair of brackets in this calculation so that the answer is correct. 5 + 2 × 7 – 4 = 11
BartSMP [9]

Answer:

5+2*(7-4) =11

Step-by-step explanation:

This expression was kind of trial and error for me seeing as I'm not really good at logic, but this is pretty basic. There are three possible places the parentheses can be placed (assuming each pair holds 2 terms);

(5+2)*7-4\\5+(2*7)-4\\5+2*(7-4)

The answer to the first expression would be 45, which is not equal to 11.

The answer to the second expression would be 15, which is also not equal to 11.

The answer to the last expression is 11, so that is the correct answer.

Hope this helped :D

- Shay

5 0
3 years ago
Paul wants to know when gas would have cost about $1.50 per gallon. What step should he take?
EastWind [94]
 he should know how much gallons he need to fill his car up 
multiply 1.50 by the amount of gallons he need so he should know how much money to spend on that many gallons
hoped i helped and brainlist plz
3 0
3 years ago
Marsha Green makes $9.19 per hour. Find her social security tax at the rate of 7.65% for a 40-hour work week.
ira [324]

Answer:

$28.12

Step-by-step explanation:

$9.19 x 40 = $367.60 x 7.65% = $28.12

5 0
3 years ago
What is the volume of this cone? Use 3.14 for pi and round your answer to the
emmasim [6.3K]
So I use the formula hopefully these steps work

7 0
2 years ago
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