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2 years ago

HURRY I NEED HELP QUICK!!!!!!!

Mathematics

1 answer:

juin [17]2 years ago

4 0

Answer:

Step-by-step explanation:

If you notice, point 4 on the x-axis (horizontal) coincides with 140 on the y-axis.

If you multiply x * 35 = 140

x is four.

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Find the solutions to the system of equations. Select all that apply. Y=x^2-1 y=2x-2

Sliva [168]

Answer:

Option C (1, 0)

Step-by-step explanation:

We have a system with the following equations:

$y = x ^ 2-1\\\\y = 2x-2$

The first equation is a parabola.

The second equation is a straight line

To solve the system, substitute the second equation in the first and solve for x.

$2x-2 = x ^ 2 -1$

Simplify

$x ^ 2-2x + 1 = 0$

You must search for two numbers that when you add them, obtain as a result -2 and multiplying both results in 1.

These numbers are -1 and -1

Therefore

$x ^ 2-2x + 1= (x-1)(x-1)\\\\x ^ 2-2x + 1= (x-1)^2=0$

Finally the solutions are

$x = 1\\y =0$

8 0

3 years ago

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The total bill for dinner, including tax, was $65.81. In Indiana there is a 7% sales tax. What was the price of the meal before

Ratling [72]

Answer:

$56.41

Step-by-step explanation:

You have to divide the total bill by the sales tax and the multiply that number by 100. Then subtract that number from the total bill and that's how you get your answer.

4 0

3 years ago

A box of pencils costs $10.The total cost (c) as a function of the number of boxes (b) is expressed as c = f(b) = 10b. What is t

Wittaler [7]

Answer:

Domain (b) = {0, 1, 2, 3, 4....}

Set of all whole numbers

Step-by-step explanation:

Given: A box of pencils costs $10.

Total cost (c) = 10b, where "b" is the number of boxes.

Here c represents the range which is dependent variable and b represents the number of boxes which is independent variable.

For instance, if you buy 10 boxes of pencils, you need to pay = 10(10) = $100

Here we replace b with the number of boxes.

The number of boxes cannot be negative. It will star from 0,1, 2, 3....

Therefore, domain (b) = {0, 1, 2, 3, 4....} which is set of whole numbers.

8 0

3 years ago

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What is the equation of a line that is perpendicular to 8x+6y=-5?

masha68 [24]

what is the equation of a line that is perpendicular to 8x+6y=-5 the answer is b

4 0

2 years ago

When recording a transaction in a journal, the account listed first is always the:

GalinKa [24]

Answer:

da te

Step-by-step explanation:

8 0

3 years ago

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