2 years ago

What two numbers multiply to the value of -10 and add to the value of -3

Mathematics

1 answer:

N76 [4]2 years ago

5 0

Answer:

-5 and 2

Step-by-step explanation:

-5+2=-3

-5*2=-10

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A ball is thrown into the air. The height in feet of the ball can be modeled by the equation h = -16t2 + 20t + 6 where t is the

makkiz [27]

$f(t)=h=-16t^2+20t+6

$

a=-16, b=20, c =6

Δ= $b^2-4ac=20^2-4*(-16)*6=400+384=784$

$\sqrt{Δ}=\sqrt{784}=28$

max:

$p=-\frac{b}{2a}=-\frac{20}{-32}=\frac{20}{32}=\frac{5}{8}$

max heigh: $h=-16(\frac{5}{8})^2+20*\frac{5}{8}+6=-16\frac{25}{64}+\frac{100}{8}+6$

$h=-\frac{25}{4}+\frac{50}{4}+6=\frac{-25+50+24}{4}=\frac{49}{4}$

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$t=\frac{-20-28}{-32}=\frac{-48}{-32}=\frac{3}{2}=1.5$

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2 years ago

At midnight, the temperature was -8° F. At noon, the temperature was 23° F. Which expression represents the increase in temperat

Mariana [72]

Answer:

Step-by-step explanation:

Increase is difference between ending and begining value so 23-(-8) =23+8.

In this case its absolute value because it has to be positive

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2 years ago

carly walks 30 feet in seven seconds. At this rate, how many minutes will it take for carly to walk a mile if there are 5,280 fe

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Answer:

20.53 minutes

Step-by-step explanation:

Speed = Distance/Time = 30/7

Time = Distance / Speed

= 5280/30/7

= 1232 seconds / 60 = 20.53 minutes

Answered by Gauthmath

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2 years ago

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Step-by-step explanation:

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1 year ago

Read 2 more answers

5 pounds is how many ounces

chubhunter [2.5K]

Answer:

80 ounces

Step-by-step explanation:

There are 16 ounces in a pound. So to convert from pounds to ounces, you multiply 5 by 16, which is 80.

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