3 years ago

Define percent. Write 25/100 as a percent then write 25/100as a decimal

Mathematics

1 answer:

Verizon [17]3 years ago

4 0

25 over 100 as a percent is 25% and 25 over 100 as a decimal is .25

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Sofia hits a softball straight up. the equation h= -16t^2 + 90t models the height h, in feet, of the ball after t seconds. How l

andrezito [222]

It is in the air 5.625 seconds.

Using the quadratic formula,

$t=\frac{-b\pm \sqrt{b^2-4ac}}{2a}
\\
\\=\frac{-90\pm \sqrt{90^2-4(-16)(0)}}{2(-16)}
\\
\\=\frac{-90\pm \sqrt{8100-0}}{-32}
\\
\\=\frac{-90\pm \sqrt{8100}}{-32}=\frac{-90\pm90}{-32}
\\
\\=\frac{-90+90}{-32}\text{ or }\frac{-90-90}{-32}=\frac{0}{32}\text{ or }\frac{-180}{-32}
\\
\\=0\text{ or }5.625$

0 is when the ball is first launched, 5.625 is when it hits the ground again.

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2 years ago

A bird is flying 10 feet above sea level, while a shark swims 15ft below sea level. How far is the bird from the shark?

kondaur [170]

Answer:

25 ft

Step-by-step explanation:

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2 years ago

Read 2 more answers

What is the irrational number between 5.5and5.2

levacccp [35]

Answer:
<span>The irrational number between 5.5 and 5.2 is square root of 30. </span>

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2 years ago

A factory sells backpacks for $35 each. The cost to make 1 backpack is $15. In addition to the cost of making backpacks, the fac

Otrada [13]

Answer:9400 backpacks

$\geq$ Step-by-step explanation

since the number of packs to be sold in a is represented by x,

selling price for 1 week = 35x

cost price for 1 week = 15x

profit = 35x-15x = 20x

additional cost of production = 11,000

this implies that 20x - 11,000 $\geq$ 7800

20x - 11,000 $\geq$ 7,800

20x $\geq$ 7800+ 11000

20x $\geq$ 18,800

x $\geq$ 18800/2

x $\geq$ 9,400

at least 9,400 packs have to be sold each week to make a profit of $7800

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3 years ago

I NEED HELP PLEASE THANK YOU

Sauron [17]

Answer:

Step-by-step explanation:

if you tried to do the d you would end up with this

/_)

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2 years ago