MATHEMATICS HIGH SCHOOL

F(x) = -7x - 1
f() = -8

Answers

Answer 1
Answer:

Answer:

  f(1) = -8

Step-by-step explanation:

Apparently, you want the argument of the function such that the function value is -8. Fill in the given information and solve for x:

  -8 = -7x -1

  -7 = -7x . . . . add 1

  1 = x . . . . . . . divide by -7

Now, you know that ...

  f(1) = -8

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X²-3x=0
Solve by factoring
I know that x=0,3, but how do you get that from x(x-3)=0?

Answers

by equating each factor by 0
x*(x-3)=0
so, x=0 & x-3=0
x=0 & x=3
You have to solve the equation by essentially taking out the parentheses. So you will take x, which is outside the parentheses and multiply it by each factor inside of them.


So you will multiply x with x (first term in brackets) and multiply x with 3, second term in the bracket. You will then add these two terms together.

x^2 - 3x

The formula for the atrapezoid is Ah bi b2). Express bi in number of feet inarea of terms the of a trapezoid is 60 square feet, its height is 6 ft, and one base is 12 Find other base.

Answers

Area = 1/2h(b1 + b2)

60 = 1/2(6)(b1 +12)
60 = 3(b1 +12)
60 = 3b1 + 36
24 = 3b1
24/3 = b1

b1 = 8

The other base is 8 feet

What is 0.96 recurring as a fraction

Answers

Answer:

96/100

Step-by-step explanation:

Numerator & Denominator for 0.96 as a Fraction

0.96 = 0 96/100

numerator/denominator = 96/100

Level of Precision for 0.96 = 0 96/100

Customize the level of precision to break 0.96 down further into a fraction. Note that the last digit after the precision point is rounded up or down accordingly.

With that in mind decimal 0.96 with a precision point of two has the following fractional breakdown:

96/100

= 48/50

= 24/25

Solve 4^(2x) = 7^(x−1).

Answers

X= -7........im not going to show the work because its alot

A ship must be unloaded by two cranes in 12 hours. Both cranes worked for 8 hours and then one of them broke. The rest of the work was done by the other crane in 7 hours. How long would each crane take to do the entire job if it was working alone? Thank you!

Answers

Answer:

6 hours

Step-by-step explanation:

8 hours x 2 cranes = 16 hours of total work

After one broke

7 hours x 1 crane = 7 hours of total work

16 + 7 = 23 hours

It would take 23 hours for one crane to do the whole job.

light travels about 186,000mi/s . The function gives the distance​ d(t), in ​, that travels in t seconds. How far does travel in ​16s.

Answers

The function d(t) = 186000t gives the distance, in miles, that light travels in t seconds.

To find how far light travels in 16 seconds, we can plug in t = 16 and calculate d(16).

Using my pocket calculator, I get:
d(16) = 186000 * 16 d(16) = 2976000

So, light travels 2976000 miles in 16 seconds. That’s about 12 times the circumference of the Earth or 0.05% of a light-year.
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