Ooflord

f(x) is the function, so here, all you need to do is put in x=7. 

(5*7 +1)/(7-1)

=36/6

=6

f(7)=6

Hope this was helpful.

At first, they had the same amount. I will call this x.

Marcus now has 3/4 *x, and Kevin has 2/3 *x. 

Marcus has 15 more than kevin, so I can list this as 3/4 *x=2/3 *x +15

1/12 *x=15

x=15*12

x=180.

Marcus gave away 1/4, so I multiply 180 and 1/4, which gets me 45. 

Marcus gave away 45 Stamps.

Let me express this in algebra form. 

Lets put Quail as Q, and Chicken as C.

3C=2Q

3C-210/2Q = 1/3

Lets bring 2Q into 3C.

2Q-210/2Q=1/3

We can use cross multiplication.

6Q-630=2Q

4Q=630

Q=157.5

2Q=315

There are 315 Quail eggs.

But, we want the total number of eggs at the end, so we must find the amount of chicken eggs too.

3C=2Q

3C=315

We want 3C-210.

315-210=105

So the total number of eggs is 105+315=420 eggs at the end.

That's what I was thinking too lol but I thought it was a bit hard to type it out. Pretty complex.

Let me express this using algebra. Vernon is V, Walsh is W, and the number of staps sold per person is X.

V= 2/5W which is 5/2V= W

V-X=57

W-X=57*3

Let me bring V= 2/5W into W-X=57*3 first.

5/2V-X=57*3

We can subtract V-X=57 from 5/2V-X=57*3

3/2V=57*3 -57

3/2V=114

V=76

Okay, almost done!

Let's bring V=76 into 5/2V= W

So W= 190 and V=76

Any questions? I hope this helped.

Let's write it out using algebra. Iskander is I, Anthony is A, and Sean is S.

I+A+S=555

A= I+13 

S=(A+I)2

Let's solve for I first.

Lets bring A= I+13 into S=(A+I)2

S=((I+13)+I)2

S=(2l+13)2

S=4I+26

Lets bring S=4I+26 and A= I+13 into I+A+S=555

I+I+13+4l+26=555

6I=516

I=86

But, we want A. So we bring I=86 into A= I+13.

A=86+13

A=99

Hope this helps.

When the denominator is 0, the fraction is undefined. the denominator in this problem is y^2 -5y +4 +y^2 -6y.

We want this to be 0, so I add that at the end.

y^2 -5y +4 +y^2 -6y=0

We can simplify this.

2y^2 -11y +4=0

Bring that into the quadratic equation, and then you should have the answer.

Hope this helps.

The general equation for any circle uses this:

(x-h)^2 + (y-k)^2 = r^2 with (h, k) being the center and r being the radius.

We already know what the center is, so now all we need to do is find the radius. we can easily find the radius with the pythagorean theorem.

We can imagine a right triangle with the radius from (2, 2) to (4, 5) as the hypotenuse.

Let's look for the legs first. 4-2=2. The second leg is 5-2=3.

Pythagorean theorem:

2^2 + 3^2 = square root of 13

r^2= 13

We can bring r^2 and (h,k) into the general equation.

The equation you are looking for is (x-2)^2 + (y-2)^2 = 13

I hope this helps.

First of all, this problem asks for integers, which means that you want the sum of integers from -12 to 13, inclusive. we can ignore the zero, because there is no value of that. Numbers -12 to 12 cancel out with their opposite number. this leaves one number, 13. The sum of the integers between -12.1 and 13.3 is just 13.

The probability that you forget your office keys or your wallet is 20 + 30 - 8 = 42%.

So now we subtract 42% from 100%.

58% is the answer. Hope this helps.