I don’t get it can someone help me please.

Answer:

Step-by-step explanation:

1. (a + b) (a - b)

2. 2

3. 4.5 or 4[tex]\frac{1}{2}[/tex] or [tex]\frac{9}{2}[/tex] or if u wanna round up then 5

hope this helps :)

Answer:

Demarcus is right the phone will cost $345

Step-by-step explanation:

15% of 300 = 45

300+45=345

Answer:

13.8 is the answer ...............

Answer:

[tex]m=3[/tex]

General Formulas and Concepts:

Pre-Algebra

Algebra I

Step-by-step explanation:

Step 1: Define

Point (2, 0)

Point (4, 6)

Step 2: Find slope m

Explanation:

Choice A is a reflection. Choice C is a rotation. Reflections and rotations are isometries because they preserve the same shape and size of the original figure. Translations are the third type of isometry.

Choice B is not an isometry. It looks like an extra point is added along with extra line segments. The before and after figures are completely different.

Answer:

The simplified answer is 11a/15

Step-by-step explanation:

Answer:

1/52

Step-by-step explanation:

To obtain the probability of drawing a 9 of spade from a deck of 52 cards ;

Probability = (number of required outcomes / number of total possible outcomes)

Number of Required outcomes = 1 (there is only one 9 of spade in a deck of 52 cards)

Hence,

P(9 of spade). = 1 / 52

Answer:

Step-by-step explanation:

since the first equation is already simplifies to y = 2x plug in 2x for the y in the second equation and solve

x = -(2x) + 6

x = -2x + 6

3x = 6

x = 2

plug in our x to the original equation

y = 2(2)

y = 4

so our answer is (2,4)

hope this helps <3

Answer:

x = 2

Step-by-step explanation:

If y is 2x, and x is -y + 6, what's x?

So let's use substitution method. Just replace the -y in x = -y + 6 with 2x:

x = -y + 6

x = -2x + 6

add 2x to both sides

3x = 6

divide by 3

x = 2

Answer:

6 is your answer

Step-by-step explanation:

[tex] \: \: \: \: \: \: \: 60 \div 5(7 - 5) \\ \: \: \: \: \: \: = 60 \div 5(2) \\ \: \: \: = 60 \div 10 \\ = 6 \: ans[/tex]

Answer:

56

Step-by-step explanation:

When we divide a number with a fraction, we change the sign into a multiplication sign, and we do the reciprocal.  Then we multiply across.

Answer:

3(m+7)

Step-by-step explanation:

solution,

3 times

the sum of m amd 7

= 3(m+7)

Answer:

its 3 x (m + 7)

Step-by-step explanation:

sue me if im wrong

Answer:

The gas pump filling the gallons in 1 minute will be: 15

Step-by-step explanation:

As there are 60 seconds in 1 minute.

Thus,

Gas pump filling the gallons in 1 minute will be:

[tex]60\:\times 2^{-2}[/tex]

[tex]=60\times \frac{1}{2^2}[/tex]             ∵ [tex]a^{-b}=\frac{1}{a^b}[/tex]

[tex]\mathrm{Multiply\:fractions}:\quad \:a\times \frac{b}{c}=\frac{a\:\times \:b}{c}[/tex]

[tex]=\frac{1\times \:60}{2^2}[/tex]

[tex]=\frac{60}{2^2}[/tex]

[tex]=\frac{2^2\times \:3\times \:5}{2^2}[/tex]

[tex]=3\times \:5[/tex]

[tex]=15[/tex] gallons in one minute

Therefore, the gas pump filling the gallons in 1 minute will be: 15

Answer:

the third one should be it

Answer:

5/6 + 2 1/6 in simplest form, would be 3.

Answer:

3

Step-by-step explanation:

Answer:

-1/4

Step-by-step explanation:hope this helps

btw can i have brainlliest?

Answer:

y=8x+5

Step-by-step explanation:

Answer:

4 Tacos

Step-by-step explanation:

It cost less for four tacos then five tacos

Answer: 4 tacos for 3.20

Step-by-step explanation: if you divide 3.20 by 4 it equals 0.80 cents for each taco and 4.25 divided by 5 equals 0.85 cents for each taco.

Answer:

The answer is 27, 53, and 62

Step-by-step explanation:

This is the answer because 27 is the lowest and then 53 and then you have 62 because it is the biggest.

Answer:

27, 53, 62

...................

Answer:86%of 950= 817

Step-by-step explanation:

Answer:

817

Step-by-step explanation:

Answer: 17955

Step-by-step explanation:

Answer:

y=mx+c y= -2/7+5/2 if this is right can i get brainliest and if u need explanation just ask

Answer:

D. y = -7/2x+5/2

Step-by-step explanation:

The formula for the graph would be: y = mx + c where m is the slope and c is the y-intercept.

Based on the graph, you can see that the y-intercept is 5/2 (somewhere between 5 and 0) so A and C are out. Remaining are options B and C.

Now, the slope is either -2/7 or -7/2. We will have to calculate the slope then. I will be using the points (-1, 6) and (1, -1)

[tex]\frac{rise}{run}[/tex] = [tex]\frac{-1-6}{1-(-1)}[/tex]

    = [tex]\frac{-7}{2}[/tex]

   = -[tex]\frac{7}{2}[/tex] (Same as option D)

Thus, the equation would have been: -[tex]\frac{7}{2}[/tex]x + [tex]\frac{5}{2}[/tex]

Answer:

Please check the explanation.

Step-by-step explanation:

1)

From the graph, taking the two points

(3, -5)

(-3, 5)

The slope between (3, -5) and (-3, 5) will be:

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\frac{5-\left(-5\right)}{-3-3}[/tex]

[tex]m=-\frac{5}{3}[/tex]

Therefore, the slope is:

[tex]m=-\frac{5}{3}[/tex]

2)

1ST METHOD

We know that the y-intercept of the graph of the linear function can be determined by setting x=0 and solving for y

From the graph, it is clear that:

at x=0, y=0

Thus, the y-intercept is: (0, 0)

2ND METHOD

We know that the slope-intercept form of the line equation is

[tex]y=mx+b[/tex]

where 'm' is the slope and 'b' is the y-intercept

substituting the point (3, -5) and m=-5/3 in the slope-intercept form

[tex]y=mx+b[/tex]

[tex]-5=\frac{-5}{3}\left(3\right)+b[/tex]

[tex]\frac{-5}{3}\left(3\right)+b=-5[/tex]

[tex]-5+b=-5[/tex]

[tex]b=0[/tex]

Thus, the y-intercept is: (0, 0)

3)

We know that the slope-intercept form of the line equation is

[tex]y=mx+b[/tex]

substituting m=-5/3 and b=0 to determine the equation line in the slope-intercept form

[tex]y=\frac{-5}{3}x+0[/tex]

Therefore, the equation line in the slope-intercept form is:

[tex]y=\frac{-5}{3}x+0[/tex]

where m=-5/3 and b=0

Answer:

0.050196

Step-by-step explanation:

normally, 2 place values is the answer so 0.05

Answer:

512

Step-by-step explanation:

Your question is probably

Evaluate: 5.12 ÷ 10^2.

your answer is here

Answer:

2    4   23

Step-by-step explanation:

Answer:

Positive

Step-by-step explanation:

It's positive because the person is gaining 4 yards, not losing it.

Answer:

С.

Step-by-step explanation:

From the options provided the only one that represents a proportional relationship was The cost of purchasing a box of socks for $1.75 per sock plus $2.15 for the box. This is because the total cost of the boxes depends on the number of socks that are bought since every pair of socks that are bought comes with a box which causes the total costs of the boxes to increase. Therefore, the number of sock pairs and the number of boxes has a proportional relationship.

Answer: C. 2

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Begin by removing the brackets

4x + 5(-4x - b) = -16x - 5b

-(x - 2) = -x + 2

Add the two binomials together to get the third one

4x -20x - 5b - x + 2 = -17x - 8                 Combine the like terms on both sides

-17x - 5b +2 = -17x - 8                             Add 17x to both sides

-5b + 2 = - 8                                           Subtract 2 from both sides

-5b +2 -2 =- 8 -2                                     Combine    

-5b =  - 10                                               Divide by -5

b = -10/-5

b = 2