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2 years ago

Question

Mathematics

1 answer:

igor_vitrenko [27]2 years ago

3 0

Answer: 7920

Step-by-step explanation:

Convert 600mph to feet per hour.

600 x 5280 = 3168000 feet per hour

Convert feet per hour into seconds by dividing by 60 to get minutes and 60 again to get seconds.

3168000 / 60 / 60 = 880 Feet per second

Multiply by 9

880 x 9 = 7920 feet in 9 seconds

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Which of the following correctly completes the square for the equation below?

erastova [34]

The answer is :

c. (x+1)²=20

To check:
(x+1)²=20 (a+b)²=a²+2ab+b²
x²+2x+1=20
x²+2x=20-1
x²+2x=19

3 0

3 years ago

Read 2 more answers

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telo118 [61]

Answer:

The initial value in the word problem is the output value when input value is set to zero.

Step-by-step explanation:

In the question, it is given that a problem uses a linear function.

It is required to explain how to interpret the initial value in a word problem.

In order to find the initial value in a world problem, find the output value when input value is set to zero.

If the initial value is marked as b for a linear function f(x), find it as follow,

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1 year ago

The furniture store where Jada's sister works bought a table for $200 and sold it for $350. What percentage was the markup? I wa

nevsk [136]

Answer:

divide 350 by 200

Step-by-step explanation:

3 0

3 years ago

Carlos is using the quadratic formula to find the solutions of y=3x^2-5x-2. Which of the following will simplify to the correct

Nana76 [90]

Answer:

$Fx=\frac{5\pm\sqrt{25+24} }{6}$

Step-by-step explanation:

A quadratic equation in one variable given by the general expression:

$ax^2+bx+c$

Where:

$a\neq 0$

The roots of this equation can be found using the quadratic formula, which is given by:

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

So:

$y(x)=3x^2-5x-2=0$

As you can see, in this case:

$a=3\\b=-5\\c=-2$

Using the quadratic formula:

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}=\frac{-(-5)\pm\sqrt{(-5)^2-4(3)(-2)} }{2(3)}=\frac{5\pm\sqrt{25+24} }{6}$

Therefore, the answer is:

$Fx=\frac{5\pm\sqrt{25+24} }{6}$

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3 years ago

PLZ HELP I NEED A THIS DONE IN LIKE 30 MIN

strojnjashka [21]

Answer:

51200 i think sorry if is get this wrong warn me sorry 8 hours

Step-by-step explanation:

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2 years ago