All categories

3 years ago

Help with number 26 please??

Mathematics

1 answer:

ElenaW [278]3 years ago

5 0

The answer would be A/2(pi)r - (minus) 2(pi)r^2

The answer would be ("A" divided by 2 times pi times r ) minus 2 times pi times r squared.

You might be interested in

How to solve b/2= -4

kobusy [5.1K]

Answer:

b = -8

Step-by-step explanation:

crossmultiply

6 0

3 years ago

The property of inequality states whatever is done to one side of the equation must be done to the other. true or false?

weqwewe [10]

This is true. The word equal in equality will help, each side of the equation in the in(equal)ity should be done the same.

3 0

4 years ago

The state of New Jersey makes approximately $1.55 billion annually from tolls of the $1.55 billion about 3/4 comes from tolls on

Rama09 [41]

Percent of turn pike is 75% and percent of parkway is 25%.

Solution:

Given, The state of New Jersey makes approximately $1.55 billion annually from tolls of the $1.55 billion

About $\frac{3}{4}$ comes from tolls on the turnpike

Remaining $\frac{1}{4}$ comes from tolls on the parkway

To find the percent of the total revenue from turnpike:

$\begin{array}{l}{\text { Percent of turnpike }=\frac{\text { amount from parkway }}{\text { total revenue }} \times 100} \\\\ {=\frac{\frac{3}{4} \text { of total revenue }}{\text { tot al revenue }} \times 100} \\\\ {=\frac{\frac{3}{4} \times \text { total revenue }}{\text { total revenue }} \times 100} \\\\ {=\frac{3}{4} \times 100=3 \times 25=75 \%}\end{array}$

To find the percent of the total revenue from parkway:

$\begin{array}{l}{\text { Percent of parkway }=\frac{\text { amount from parkway }}{\text { total revenue }} \times 100} \\\\ {=\frac{\frac{1}{4} \text { of total revenue }}{\text { total revenue }} \times 100} \\\\ {=\frac{\frac{1}{4} \times \text { total revenue}}{\text { total revenue }} \times 100} \\\\ {=\frac{1}{4} \times 100=25 \%}\end{array}$

Summarizing the results:

Percent of turn pike is 75%

Percent of parkway is 25%

3 0

3 years ago

Solve each system of equations algebraically. For each one, explain what the solution (or lack thereof) tells you

Paul [167]

Answer:

a: no solutions

b: (2, 3)

Step-by-step explanation:

In both equations, the slope of x is the same, but the y-intercept is not, which means they are parallel. Therefore, this system of equations has no solutions.

Since both of the equations are equal to y, we can set them equal to each other:

$\frac{1}{2}x^2+1= 2x-1\\x^2 + 2 = 4x - 2\\x^2-4x+4=0$

We can solve by factoring (by finding a number that multiplies to 4 and adds up to -4):

(x-2)^2 = 0

x = 2

Now, to find y, plug-in x to any of the equations:

y = 2*2-1 = 3

Therefore, the solution to this system of equation is (2, 3)

I hope this helped.

4 0

3 years ago

How do i do equations I quite don't understand them please help me thank you

ankoles [38]

Answer:dfdasfsdafdasfdasfdasfdasfdsafdasfdasfdasfdasfdasfdsafasfdas

Step-by-step explanation:dsgdasjghdasfkjhdasfjhasdfjdaskfhasfkjdhasfkljhdasfkjhdskjahfdkjsahfkljdashfkjdsahfkjdashfkjdhsafdhsfkjdhsfkljdhfkjdhasfkljdashfkljdsahfkjdshfkljds

4 0

3 years ago