plz I need a help expand:(5x+4y)(5x-4y) ​

Answer:

- 20

Step-by-step explanation:

Given the expression

2b - 3ac ← substitute given values for a, b and c

= 2(5) - (3 × - 2 × - 5)

= 10 - 30

= - 20

Answer:

-20 is the required answer

Step-by-step explanation:

2b-3ac

=2×5-3×-2×-5

=10-30

=-20

Answer:

it x=-8 do it

Step-by-step explanation:

Answer I think and you can't get help on a quiz

Answer:

$0.26388 per oz ; $0.28225 per oz

Step-by-step explanation:

Given :

Option 1:

$4.75 for 18 oz

Option 2:

$11. 29 for 40 oz

The price per ounce (oz) for each option is :

Price / number of ounce

Option 1:

4.75 / 18 =

Price per ounce = $0.26388 per oz

Option 2:

$11.29 / 40 oz

= $0.28225 per oz

Answer:

Linear means something related to a line. All the linear equations are used to construct a line. A non-linear equation is such which does not form a straight line. It looks like a curve in a graph and has a variable slope value

Step-by-step explanation:

Please brainiest

Answer:

Linear means something related to a line that makes a straight line.A non-linear equation is such which does not form a straight line aka makes a curved or zigzag line.

Answer:

b

Step-by-step explanation:

Answer:

A.) The function is being translated down 5 units

B.) The function is being stretched vertically stretched by 2 units

C.) He function is being translated 5 units to the right

D.) The functions being flipped and vertically stretched by 3 units

Hope this helps in some way!

Answer:

Option (4)

Step-by-step explanation:

Given equation of the linear graph is,

[tex]y=-\frac{5}{8}x+\frac{2}{3}n[/tex]

By comparing this equation with the slope-intercept form of the linear equation,

y = mx + b

m = [tex]-\frac{5}{8}[/tex]

And b = [tex]\frac{2}{3}n[/tex]

Since, y-intercept 'b' = -12 [given]

[tex]\frac{2}{3}n=-12[/tex]

n = [tex]-12\times \frac{2}{3}[/tex]

n = -8

Therefore, Option (4) will be the answer.

Answer:

slope= -3,y - intercept y = -2

Step-by-step explanation:

- Make y the subject by taking four on the opposite side of the equal sign.

2y = -6x - 4

- Divide throughout by 2 and from there you get the gradient which is also the slope.

- To get the y - intercept,the value of x =0. Thus you get y =-2.

Answer:

$6300

Step-by-step explanation:

original price: $5000

increase price by 40%: $5000×1.4=$7000

decrease new price by 10%: %7000×0.9=$6300

Answer:

The solutions for both system of equations are as follows:

Step-by-step explanation:

The first set of equations is:

[tex]4x+6y=32\\3x-6y=3\\[/tex]

It can clearly be seen that the coefficients of y are already same in magnitude with different signs so we have to add both equations

So adding both equations, we get

[tex]4x+6y+3x-6y = 32+3\\7x = 35\\\frac{7x}{7} = \frac{35}{7}\\x = 5[/tex]

Putting x=5 in equation 1

[tex]4(5)+6y = 32\\20+6y = 32\\6y = 32-20\\6y = 12\\\frac{6y}{6} = \frac{12}{6}\\y = 2[/tex]

The solution is (5,2)

The second set of simultaneous equations is:

[tex]-3x+5y=-113x+7y=-1[/tex]

We can see that the coefficients of x in both equations are same in magnitude with opposite signs so

Adding both equations

[tex]-3x+5y+3x+7y = -11-1\\12y = -12\\\frac{12y}{12} = \frac{-12}{12}\\y = -1[/tex]

Putting y= -1 in first equation

[tex]-3x+5(-1)=-11\\-3x-5=-11\\-3x=-11+5\\-3x=-6\\\frac{-3x}{-3} = \frac{-6}{-3}\\x = 2[/tex]

The solution is: (2,-1)

Hence,

The solutions for both system of equations are as follows:

Answer:

Total earned with $225 sales = $233.75

Total earned with x sales = 0.15x+200

Step-by-step explanation:

Given that:

Base salary of Leah per week = $200

Commission paid = 15%

Sales made by Leah = $225

Commission = 15% of 225

Commission = [tex]\frac{15}{100} * 225[/tex]

Commission = 0.15 * 225

Commission = $33.75

Total earned = 200 + 33.75 = $233.75

Commission when sales are x

Commission = 0.15x

Total earned = 0.15x+200

Hence,

Total earned with $225 sales = $233.75

Total earned with x sales = 0.15x+200

The Answer: 60 ÷ 5 = T

Step-by-step explanation:

[tex] \frac{11}{4} [/tex]

[tex] \frac{4}{11} \times \frac{11}{4} = \frac{44}{44} = 1[/tex]

if it's helpful ❤❤❤

THANK YOU.

Answer:

85 - 20 = p

65

Step-by-step explanation:

Answer:

65

Step-by-step explanation:

Equation: 85-20=65

Answer:

4 feet and 11 1/4 inches left

Step-by-step explanation:

5 feet - 1 foot leaves 4 feet

1 foot - 3/4 = 11 1/4

so, 4 feet and 11 1/4 inches left

Answer:

3 or (0,3)

Step-by-step explanation:

Answer:

About 527.79

Step-by-step explanation:

formula is A=2πrh+2πr^2

Answer:

[tex]527.52\:\mathrm{in^2}[/tex]

Step-by-step explanation:

The surface area of this cylinder consist of two circles and a 3D outer edge with respect to the circumference. The area of a circle is given as [tex]r^2\pi[/tex]. Using [tex]\pi=3.14[/tex] as requested in the problem, the area of both these circles is:

[tex]2\cdot6^2\cdot 3.14=226.08\:\mathrm{in^2}[/tex].

The area of the outer edge is the circumference of the circle multiplied by the height. The circumference of a circle is given by [tex]2r\pi[/tex].

Therefore, the circumference's 3D outer edge is:

[tex]8\cdot2\cdot6\cdot 3.14 = 301.44\:\mathrm{in^2}[/tex].

Adding these up, the total surface area is:

[tex]226.08+301.44=\fbox{$527.52\:\mathrm{in^2}$}[/tex].

Answer:

64.93=4.73x+22.36

Step-by-step explanation:

64.93 is how much he paid

22.36 is his constant

4.73 is for 1 call

Step-by-step explanation:

If the perimeters could be equal,

then 4(x + 3) = 2(x + 4 + x + 1).

=> 4x + 12 = 2(2x + 5)

=> 4x + 12 = 4x + 10

However 12 =/= 10 for all real values of x. Hence their perimeters can never be equal.

Answer:

It will be 57-2.5h=32

This is because you're starting with 57 degrees. 2.5 is constant so that is why you need a variable for it.

Answer:

I would say 57 - 2.5h = 32

Step-by-step explanation:

Because the temperatures is dropping so that why we are subtracting and we don't no how many hours are theirs every time it drops for 2.5 that why we put the h with the 2.5

Answer:

according to the creator its A

Step-by-step explanation:

i did A and it was correct on edge 2021

Answer:3x^2*10x=30x^3

Step-by-step explanation:

Answer:

you answer is b

Step-by-step explanation:

ik bc i did it last year

.._+_+

Answer:

d

Step-by-step explanation:

Answer:

Option b

multiply 6 and 4