2 years ago

A ball is thrown into the air from a height of 4 feet at time t = 0. The function that models this situation is

Mathematics

1 answer:

morpeh [17]2 years ago

8 0

a character representing one or more of the sounds used in speech; any of the symbols of an alphabet.

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State two numbers such that the lesser number is 25% less than the greater number.

Lorico [155]

75 and 100.

It is 25% lesser because if you subtract 75 and 100 from each other, you get 25.

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2 years ago

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Find an equation of the sphere with center (2, −10, 3) and radius 5. $$25=(x−2)2+(y−(−10))2+(z−3)2 use an equation to describe i

lana66690 [7]

In the $x,y$ plane, we have $z=0$ everywhere. So in the equation of the sphere, we have

$25=(x-2)^2+(y+10)^2+(-3)^2\implies(x-2)^2+(y+10)^2=16=4^2$

which is a circle centered at (2, -10, 0) of radius 4.

In the $x,z$ plane, we have $y=0$ , which gives

$25=(x-2)^2+10^2+(z-3)^2\implies(x-2)^2+(z-3)^2=-75$

But any squared real quantity is positive, so there is no intersection between the sphere and this plane.

In the $y,z$ plane, $x=0$ , so

$25=(-2)^2+(y+10)^2+(z-3)^2\implies(y+10)^2+(z-3)^2=21=(\sqrt{21})^2$

which is a circle centered at (0, -10, 3) of radius $\sqrt{21}$ .

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2 years ago

Which expression is equivalent to the one below?

Alex17521 [72]

Answer:

D . 9 .1/13

Step-by-step explanation:

$9\div 13 = \frac{9}{13} \\\\9\cdot \frac{1}{13}\\\\=\frac{9}{1}\cdot \frac{1}{13}\\\\=\frac{9\cdot \:1}{1\cdot \:13}\\\\=\frac{9}{13}$

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2 years ago

HELP PLZ REALLY NEED HELP!!!!!!What is the product? 0.478×(−0.2) Enter your answer as a decimal in the box.

Whitepunk [10]

The product is 0.0956.

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2 years ago

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.3333 is considered a rational number. What makes this number rational? Explain your reasoning.

jeka57 [31]

It’s a rational number when you round it to any place value, if you don’t round, it’s not rational.

Rational numbers are fractions and decimals that don’t go on and on forever, and no fractions that are over 0.

Since .3333 doesn’t go on forever, it’s rational.

It’s rounded to the Ten Thousandths.

Examples:
Rational: 4/5 .35 6/8
Not Rational: .3333333 (forever) 4/0 6/0 .555555 (forever).

Hope this helps :)

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2 years ago