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RSB [31]
3 years ago
7

Determine the zeros of the expression -16t^2-8t+24.

Mathematics
1 answer:
Lina20 [59]3 years ago
6 0
-16t^2-8t+24=-8(2t^2+t-3)=-8(2t^2+3t-2t-3)\\\\=-8[t(2t+3)-1(2t+3)]=-8(2t+3)(t-1)\\\\\text{the zeros}\\\\2t+3=0\to t=-1.5\\t-1=0\to t=1\\\\Answer:\ \boxed{-1.5\ and\ 1}
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pedro has 6 packs of gum with p pieces in each pack he had a total of 72 pieces of gum decide whether each equation represents t
Serga [27]

Answer:

6p = 72 --- The equation

The solution is 12 packs i.e. p = 12

Step-by-step explanation:

No options given. So, I will solve generally.

Given

Packs = 6

Quantity = p per pack

Total = 72

Required

Determine the equation

This is calculated using:

Packs * Quantity = Total

6 * p = 72

6p = 72

Divide both sides by 6

p = 12

4 0
3 years ago
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Lelu [443]
Independent variables must be the amount of cans you buy of cat food. The dependent variable, well that must be the cost. Depending on how many cans you buy, the cost changes! :)
8 0
3 years ago
Nancy’s nut store sells peanuts for $2 per pound and cashews for $10 per pound. The store sells a peanut - cashew mixture for $7
Gelneren [198K]

9514 1404 393

Answer:

  • 25 pounds cashews
  • 15 pounds peanuts

Step-by-step explanation:

Let c represent the number of pounds of cashews in the mix. Then 40-c is the number of pounds of peanuts. The total cost of the mix is ...

  10c +2(40 -c) = 7(40)

  8c +80 = 280 . . . . simplify

  c +10 = 35 . . . . . . . divide by 8

  c = 25 . . . . . . . . . . subtract 10

  40-c = 40-25 = 15 . . . . pounds of peanuts

25 pounds of cashews and 15 pounds of peanuts should be used in the mix.

5 0
2 years ago
Albert walks 4/5 of a mile in 5/12 of an hour. what was the average speed miles er hour?
NISA [10]

Answer:

3mph

Step-by-step explanation:

his speed per hour will be 3 miles per hour

6 0
3 years ago
if the ratio of similarity of the figures above is 2/3, then what is the ratio of the perimeters of the two figures?
Mademuasel [1]

Perimeter = side 1 + side 2 ´+ side 3.

Triangle 1

Perimeter = 6 + 8 + 10

= 24

Triangle 2

Perimeter = 9 + 12 + 15

= 36

Ratio

24/36 = 2/3

The ratio of the perimeters is also 2/3

5 0
1 year ago
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