MATHEMATICS HIGH SCHOOL

2.
Simplify the product using FOIL. (2x – 7)(5x + 5)

Answers

Answer 1

Answer:

Answer: 10x - 25x - 35

Step-by-step explanation:

F 2x times 5x = 10x

O 2x times 5 = 10x

I -7 times 5x = -35x

L -7 times 5 = -35

Hope This Helps :)

Answer 2

Answer:

Answer:

10x^2-25x-35

Explained:

(2x)(5x)=10x^2

(-7)(5)=-35

(-7)(5x)=-35x

(2x)(5)=10x

10x-35x=-25x

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Which is the length of PQ if the length of AB is 8?

Answers

I think that the answer is 3

AB = 8 so half of that is 4.

Using Pythagoras:

PQ^2 = 5^2 - 4^2

PQ^2 = 25 - 16 = 9

PQ = 3

construct the graph of x^2+y^2=9 what would this graph look like and what are its coordinates please help?

Answers

Answer:

The coordinates (3,0), (-3,0), (0,3) ,and (0,-3) helps us to draw the graph of the circle. Below is the explanation

Step-by-step explanation:

Given:

The equation of a circle is $x^(2) +y^(2) =9$ .

To find:

Graph the given equation.

Let's find the center and radius by comparing the given equation with the standard form.

$(x-h)^(2) +(y-k)^(2) =r^(2)$

We can rewrite our equation as $(x-0)^(2)+ (y-0)^(2)= 3^(2)$

Now, compare them

$(x-h)^(2) +(y-k)^(2) =r^(2)$

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

Center (h,k)=(0,0)

Radius r=3

Now, draw the graph of the circle by placing the center and radius.

So, the coordinates which are 3 units exactly from the center (0,0) help us to find the graph of the circle. So, (0,3), (0,-3), (3,0) ,and (-3,0) would help us to graph the circle.

You can learn more:

brainly.com/question/2870743

It would looks like circle with radius of 3 and its center at (0,0).

Please help with this, 20p

Answers

Answer:

about 325

Step-by-step explanation:

On average, the mileage is about 21.7 miles per gallon, so 15 gallons would be good for about 325 miles.

If we look at the table for fills that total 15 gallons, we see the first and last total 330 miles, and the 3rd and 4th total 314 miles. So, we expect somewhere between these values, on average.

A formal average adds the miles driven and divides by the total of gallons used. That result is shown below. While we might estimate that we could drive 325 miles on 15 gallons, we have found that our mileage actually varies.

I think about 325

Because 198+115+154+160+132=759
9+5+7+8+6=35
759/35 is about 21.7

So it’s 21.7*15 is about 325 or 326

Need help
-1/2 + (3/4X4/9)=