I need help on number 2 , 3 and 4

Answer:

7 number ans is b because 2 times the sum of a and b means 2×(a+b)

Answer:

5.) Associative Property of Addition

6.)Commutative property of multiplication

7.) 2 ( a + b)

Step-by-step explanation:

Answer:

$79.20 savings.

It should be (2, -9). When rotating 180° you always make the x and y the opposite, so you take the opposite of -2 and the opposite of 9 to get (-2, 9). Hope this helps!

Answer:

The radius of the scoop is r = 3.1 cm

Step-by-step explanation:

Since 3 gallons yields 90 scoops, and 1 gallon = 3785 cm³.

3 gallons = 3 × 3785 cm³ =  11355 cm³

So we have 11355 cm³ in 3 gallons which is also the volume of 90 scoops.

Since 90 scoops = 11355 cm³, then

1 scoop = 11355 cm³/90 = 126.2 cm³

Now, if each scoop is a sphere, the volume is given by V = 4πr³/3 where r is the radius of the scoop. Since we need to find the radius of the scoop, r, making r subject of the formula, we have

r = ∛(3V/4π)

Substituting V = 126.2 cm³, we have

r = ∛(3× 126.2 cm³/4π)

= ∛(378.6 cm³/12.57)

= ∛30.13 cm³

= 3.1 cm

So, the radius of the scoop is r = 3.1 cm

Answer:

13 weeks

Step-by-step explanation:

8×13=104

125-104=21$

Answer: x>3

Step-by-step explanation: 4x+3-3>15-3

    4x>12

4x/4>12/4

=x>3

Answer:

Boom boom eat my but cheeks

Step-by-step explanation:

Answer:

the answer for that equation is 58.8

Answer:

-41.16

Step-by-step explanation:

c = -1.4

-21c²

-21(-1.4)²

-21(1.96)

-41.16

1 mile * 5280 ft * 12 in = 63360 in

There are 63360 inches in one mile

Answer:

63360

Step-by-step explanation:

5280 × 12 = 63360

Answer:

The equality is false because one side is positive and the other side negative.

Step-by-step explanation:

5(4)+7        

Multiply the numbers 4 and 5

20

20+7

add the numbers 20 and 7

27[tex]\neq[/tex]-3

so the number 4 is not the solution

Answer:

y=$24x+$42 A

y=$28x×$25 B

The required equations of Lycan buying clay from company A and company B are

A  : y = 24x + 42

B  : y = 28x + 25

What is an expression?

Expression in mathematic is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.  

Mr. Lycan is considering buying clay from two art supply companies

and here, it is given that Company A sells x= 50-pound containers of clay for $24, plus $42 to ship the total order which can be written in linear equation as :

y = 24x + 42

and Company B sells the same clay (x= 50 pound )for $28, plus $25 to ship the total order which can be written in linear equation as :

y = 28x + 25

Therefore, the required equations of Lycan buying clay from company A and company B are

A  : y = 24x + 42

B  : y = 28x + 25

check and know more about equation of line here :

https://brainly.com/question/21511618

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Answer:

- 10x

Step-by-step explanation:

Step 1:

-2x - 8x

Answer:

- 10x

Hope This Helps :)

Answer:

See Below

Step-by-step explanation:

angle BAK = 128

Find KAS

180 - 128 = 52

KAS = 52

find BKA and ABK

360 -128 = 232

232/2 = 116

BKA =116

ABK = 116

find AKS

180 - 116 = 64

AKS =64

Now you have KAS and AKS

add together and subtract sum from 360 to find BSK

52 + 64 = 116

360 - 116 =244

Let me know if incorrect, plz.

Hope this helps=)

Answer:

-2x^2-6x-15

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

To find the slope of the graphed line, you take two points. I have chosen (0, 4) and (8, 0)

The formula of a slope is (y value of second point [tex]-y[/tex] value of first point) divided by (x value of second point [tex]-x[/tex] value of first point):

[tex]\frac{0-4}{8-0} =-\frac{1}{2}[/tex]

------------------------------------------------------------------------

The slope for a perpendicular line is 2.

Answer:

d=(m+p)/4

Step-by-step explanation:

The given equation solved for d as d=(m+p)/4.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

The given equation is 4d-p=m.

The given equation can be solved as

4d=m+p

Therefore, the given equation solved for d as d=(m+p)/4.

To learn more about an equation visit:

https://brainly.com/question/14686792.

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Answer:

g(6)=21

Step-by-step explanation:

Given g(x)= 3x+3, Find g(6)

1. Replace g(x) with g(6), and x with 6. The equation will now look like this: g(6)=3(6)+3

2. Multiply 3 and 6, to equal 18. The equation will now look like this: g(6)=18+3

3. Add 18 and 3 to equal 21. The Answer is g(6)=21

Answer:

2 and 1/6, hope this helps :)

Answer:

[tex]45[/tex] degrees

Step-by-step explanation:

Angles on a straight line add up to 180 degrees.

Thus, [tex]x+3x=180[/tex]

[tex]4x=180[/tex]

Divide both sides by 4:

[tex]\frac{4x}{x} =\frac{180}{4}[/tex]

[tex]x=45[/tex]

Answer:

5

Step-by-step explanation:

26 × 10 ÷ 100 = 52 · x ÷ 100

260 = 52 · x

x = 5

Answer:

15

Step-by-step explanation:if you take a way five from 20 you get 15 because 20-5 is 15

if you start at 1 and go to twenty 5 before that is 15

Answer: 2z + 6

Step-by-step explanation: Distribute the 2 to z and 3.

Answer:

the first one

Step-by-step explanation:

the two planes intersect at line YZ, where they meet

tip: planes intersects at a line, just like how lines intersect at a point

hope this helps :)

Answer:

4

Step-by-step explanation:

[tex]3\frac{2}{7}-(-\frac{5}{7} )\\\\=3\frac{2}{7}+\frac{5}{7}\\\\=3+\frac{2}{7}+\frac{5}{7}\\\\=3+\frac{2+5}{7}\\\\=3+\frac{7}{7}\\\\=3+1\\\\=4[/tex]

Answer:

The common factor is (3x+1).

Answer:

y = -10x + 82

Step-by-step explanation:

Plug in the slope and point into y = mx + b to solve for b:

y = mx + b

2 = -10(8) + b

2 = -80 + b

82 = b

Then, plug b and the slope into y = mx + b

y = -10x + 82 is the equation in point slope form.

Answer:

3,6,9,12,etc

Step-by-step explanation:

In math, a multiple is the product of any quantity and an integer. In other words, for the quantities a and b, we say that b is a multiple of a if b = na for some integer n, which is called the multiplier. If a is not zero, this is equivalent to saying that b/a is an integer. 

Answer:

y = 8

Step-by-step explanation:

Step 1: Write equation

3 - 5y = -37

Step 2: Subtract 3 on both sides

-5y = -40

Step 3: Divide both sides by -5

y = 8