All categories

4 years ago

Can someone please help me solve this math problem, please? Thanks.

Mathematics

1 answer:

Ganezh [65]4 years ago

4 0

If you use FOIL to multiply these two brackets, it will lead you what is exactly written (xa+xb+ya+yb)

so it is correct

A

You might be interested in

What is the equation in slope-intercept form of the line that passes through the points (−26, −11) and (39, 34)?

Scrat [10]

The equation in slope-intercept form of the line passing through the given points is: C. $y = \frac{9}{13}x + 7$

Given the following points:

Points on the x-axis = (-26, 39)

Points on the y-axis = (-11, 34)

To find the equation in slope-intercept form of the line passing through the given points:

Mathematically, the equation of slope is calculated by using this:

$Slope. \;m = \frac{Change \; in \; y \;axis}{Change \; in \; x \;axis} \\\\Slope. \;m = \frac{y_2 - y_1}{x_2 - x_1}$

Substituting the given points, we have:

$Slope. \;m = \frac{34 - [-11]}{39 - (-26)}\\\\Slope. \;m = \frac{34\; + \;11}{39 \;+ \; 26}\\\\Slope. \;m = \frac{45}{65}\\\\Slope. \;m = \frac{9}{13}$

The standard form of an equation of line is given by the formula;

$y = mx + b$

Where:

x and y are the points.

m is the slope.

b is the intercept.

We would find the intercept:

$-11 = \frac{9}{13}(-26) + b\\\\ -11 = -18 + b\\\\b = -11 + 18$

Intercept, b = 7

The equation in slope-intercept form of the line is:

$y = \frac{9}{13}x + 7$

3 0

3 years ago

A decimal rounded to the nearest tenth is 2.5. Write two decimals that can be rounded to 2.5.

Leona [35]

2.49 and 2.51 :)

I hope it helped :)

5 0

3 years ago

Read 2 more answers

Elise built a rectangular vegetable garden that is 9 feet long and has an area of 72 square feet. What is the perimeter of Elise

Papessa [141]

We have to find the width first.

72 divide by 9 = 8

To find the perimeter, you can do it two ways:

1. 9 + 8 + 9 + 8 = 34

2. 2(9) + 2(8) = 18 + 16 = 34

The answer is 34 feet.

7 0

4 years ago

I really need help I’ve worked it out already though

Vikki [24]

<h2>Answer:</h2><h3>75(5r)+75(3d)+75(4f)</h3>

Solution,

Cost of roses in 1 bouquet=5r

Cost of daisies in 1 bouquet=3d

cost of green filler in 1 bouquet=4f

Total no. of bouquet=75

cost of one bouquet=5r+3d+4f

total=75(5r+3d+4f)

 =75(5r)+75(3d)+75(4f)

hope it helps

Good luck on your assignment

8 0

3 years ago

A game center has a $5 admission fee and charges $0.50 for each game played. Graph the equation on the coordinate plane. Be sure

Rufina [12.5K]

A game center has a $5 admission fee (this is the y-intercept of the equation)

It charges $0.50 for each game played (this is the slope of the equation)

The equation can be written as

$y=0.50x+5$

Where y is the cost and x is the number of games played.

To plot the graph, you can either find some (x, y) coordinates using the above equation.

Or you can plot it using the concept of slope and y-intercept.

Start at the point of y-intercept (0, 5)

The slope is 0.50 = 1/2

Then go 1 unit up and two units to the right that is your next point.

Repeat the same, 1 unit up and two units to the right that is your next point and so on...

Let us plot the graph

Scale: one small box = 1 unit

x-axis = number of games

y-axis = Cost ($)

4 0

1 year ago