Reagan solved 5.25 ÷ 5 and got 105. What did Reagan do wrong?

Answer:

a) x^2 - x -12

b) 2s^2 - 16s + 24

c) 8s^2 - 8s -48

d) 4x^2 - 16x + 16

Answer:

a. x^2 - x - 12

b. 2s^2 - 16s + 24

c. 8s^2 - 8 - 48

d. 4x^2 - 16 + 16

Step-by-step explanation:

You need to use distributive property find the answer.

(x + 3)(x - 4)

>> (x)(x) = x^2

>>(x)(-4) = -4x

(3)(x) = 3x

(3)(-4) = -12

The result will be x^2 -4x + 3x -12

You can simplify this by adding the like terms:

x^2 -4x + 3x -12

>> x^2 - x - 12

Just do the same for the rest of them by using distributive property.

Hope this helps! Have a great day! Also, let me know if you need an explanation for the rest of them too!

Answer:

185

Step-by-step explanation:

here is your answer

3(8)²

3*64

192.......

Answer:

Hola, he descubierto con qué querías ayuda! ¡Aquí hay 5 fracciones inventadas! 1/5, 1/4, 6/40, 7/8 y 21/30. ¡Espero que esto ayude! ¡Tener una gran noche! ¿Necesitas más ayuda?

Step-by-step explanation:

Answer:

Correlation

Step-by-step explanation:

I think

The relationship between the two events is one of implication (Option D.), where achieving 12 consecutive strikes implies the occurrence of a perfect game, but it does not necessarily indicate a causal or universally correlated relationship.

The term that best describes the relationship between the two events described is implication.

In this context, the statement implies that when a bowler achieves 12 consecutive strikes in a game, it is an indication or implication that the bowler has bowled a perfect game. This means that if the first event (getting 12 consecutive strikes) occurs, it logically leads or implies the occurrence of the second event (bowling a perfect game). However, it does not necessarily mean that every perfect game is achieved through 12 consecutive strikes, as there can be alternate ways to achieve a perfect game.

Therefore, the relationship between the two events is one of implication, where the occurrence of the first event suggests or implies the occurrence of the second event, but they are not always causally linked or universally correlated.

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Answer:

x = 2

Step-by-step explanation:

70x + 50 = 190

=> 70x = 140

=> x = 2

Therefore, x = 2.

Hoped this helped.

Answer: You dont give the statement. But 20/20 is 100% if that helps!

Step-by-step explanation:

Answer:

-70x - 100

Step-by-step explanation:

After you apply distributive property: -60x+-100+-10x

Combine like terms: -70x - 100

Hope it helped!

Answer: -70x-100

Step-by-step explanation:

10(–6x+–10)+–10x

-60x+-100+-10x

Answer:

C. This is the answer because it doesn't have to be answered.

Answer:

B

Step-by-step explanation:

B is a question that doesn't need an answer, but is used to make the reader think.

Answer:

Cylinder

Step-by-step explanation:

STEP ONE:

Identify base. It is a circle.

STEP TWO:

Identify the top of the figure. If it is the same as the lower base, then it is a cylinder.

So, this shape is a cylinder.

Answer:

Times four then Minus 2

Step-by-step explanation:

1 times 4 is 4 then minus 2 is 2

[tex]area \: of \: circle = \pi \times {r}^{2} \\ area \: of \: circle = 9\pi \times ft {}^{2} \\ 9\pi \times ft {}^{2} = \pi \times {r}^{2} \\ = r = \sqrt{\ 9 pi \times \: ft {}^{2} } \\ r = 3ft[/tex]

Answer:

A = 12a - 24

B = 2x² + 10x

C = 45x - 45

D = 6x² - 3x²

Step-by-step explanation:

You can solve all of these by distributing the first number/variable into the parenthesis. Just multiply the number outside the parenthesis by each of the terms inside the parenthesis.

Answer:

A

Step-by-step explanation:

0.318 is a decimal that ends

0.3444... can be turned into the fraction 31/90.

Answer:

A

Step-by-step explanation:

Answer: B.84

Step-by-step explanation:

1) Substitute the given information into the equation Area= length * width

2) 6,048 = 72 * x

3) Divide by 72 to find x

6,048/72 = 84

4) The answer is 84 tiles in each row

Answer:

= 1 1/5

Step-by-step explanation:

= -10+16/(-2)+7

= 6/5

= 1 1/5

Answer:

per month means we divide by the months

here is our formula

we do 48.9-29.7 to see the increase, and divide by the months to see how much per month

(48.9-29.7)/8

We get 2.4, meaning the average weight increase per month is 2.4

Step-by-step explanation:

Answer:

Answer for question 1: 52

Answer for Question 2: 68

Answer for question 3: 40

Answer for Question 4: 25

Step-by-step explanation:

1: [tex](4 + 3)^2[/tex] = [tex]7^2[/tex] = 49 (12 ÷ 4) = 3

3 + 49 = 52

2: [tex](12 * 9- 7^2) + 9[/tex] = 12 * 9 = 108 - 49 = 59 + 9 = 68

3: 28 ÷ 7 = 4 + [tex]6^2[/tex] = 40

4: [tex](2 * 7 + 4^2) - 5[/tex] = 2 * 7 = 14 + 16 = 30 - 5 = 25

Hope this helps!

Answer:

y = kx.

Step-by-step explanation:

A proportional relationship between a quantity y and a quantity x that has a constant of proportionality k is represented by the equation y = kx.

Answer:k=yx

Step-by-step explanation:

Answer:

25 - 01

Step-by-step explanation:

Answer:

The difference is like subtraction. the difference is 01 so, 24 - 01. I got this answer because it is the smallest that I can get to.

hope this helped.

Answer:

c

Step-by-step explanation:

Answer:

0.8 < x < 16.8

Answer:

i think that the size for side x is 8.2

Step-by-step explanation:

hope this helps!

Answer:

Yes, John is correct.

Step-by-step explanation:

To find the total amount of candy you must add the amounts Sally and John have. Sally has 243.75 and John has 27.4. When you add those two together you can 217.5 which is what John thinks therefore he is correct.

Answer:

The price of a similar cellphone today has increased

Answer:

increase

Step-by-step explanation:

Because the price went by $380.

Answer:

i dont know if im right but i think that its C

Step-by-step explanation:

Answer:

See below:

Step-by-step explanation:

Hello! I hope you are having a nice day.

We can solve this equation in a single step, we just need a bit of theory and a graph.

We can first see that its in [tex]y=mx+b[/tex] form. Which is also known as Slope-Intercept form.

This means that we know the following.

Since we know that, we can see that from our equation that the slope of the line is 3 and the y intercept is (0,-7).

Now that we've gotten that, we can start graphing.

The y intercept is -7 so we can plot (0,-7) as one of our points.

The slope of 3 means that we got up 3 units then right a single unit.

Therefore, another point could be (1,-4).

With our two points, we can create our graph by creating a straight line through those two points and therefore plotting our line.

Cheers!

Answer:

Step-by-step explanation:

y = 3x - 7 is a linear equation with y-intercept -7 (or    (0, -7)   ) and slope 3.  These two quantities are instantly readable from the equation.

There are several ways in which we may graph this equation.  One is to plot the y-intercept (0, -7)  Then choose an x-value, such as 3, and evaluate the function at that x value.  We see that y = 9 - 7, or y = 2, when x = 3. Then another point on the graph besides (0, -7) is (3, 2).  Plot (3, 2) and then draw a line through the two plotted points.

Here's another way:

The slope here is 3, or 3/1, which represents rise / run.  Plot (0, -7) as before.

Move your pencil from (0, -7) 1 space to the right and 7 spaces up.  Then plot a new point at that location.  Draw a line through (0, -7) and (1, 0).

Answer:

I’m pretty sure that it is D because it says boundary and not just where it is at.

Step-by-step explanation:

If you have an equation for your graph you would substitute the y AND x with 0, you the solve the solution and if the solution is true then the space where (0,0) is located becomes the shaded area because that resembles the area in which everything is a positive solution with the equation. If it is false then the opposite area is then shaded because (0,0) doesn’t work with the problem.

I hope you get it right! Have a good week :D

Answer:

5:3

Step-by-step explanation:

The ratio is 5 to 3

chocolate being 5 and oatmeal being 3

Answer:

13 hours and 12 minutes 

Step-by-step explanation:

You put 3.25 as a fraction which is 3 1/4. then I took 3 1/4 and misused it by 11 1/2. 23/2 - 13/4 = 8 1/4 then we took the 5/8 and divided it by 33/4 (3 1/4) I got 13 1/5. 13 1/5 is 13 hours and 12 minutes.

Minimum amount of time taken to complete the hole is 13 hours and 12 minutes.

In mathematics, proportion is an equation where two ratios are taken to be equal to each other. Suppose if a:b = c:d, then [tex]\frac{a}{b}[/tex] = [tex]\frac{c}{d}[/tex].

In the question, it is given that, a hole is already dug to a depth of 3.25 feet = 3 [tex]\frac{1}{4}[/tex] feet.

Also, the depth of hole at the end of the day must be atleast 11 [tex]\frac{1}{2}[/tex] feet.

Remaining depth of the hole needed to dug = 11 [tex]\frac{1}{2}[/tex] - 3 [tex]\frac{1}{4}[/tex] = [tex]\frac{23}{2}[/tex] - [tex]\frac{13}{4}[/tex] = [tex]\frac{33}{4}[/tex] feet

Rate of digging is [tex]\frac{5}{8}[/tex] feet per hour.

We have to find how much time will be taken for  [tex]\frac{33}{4}[/tex] feet.

In proportional form, it can be written as  [tex]\frac{5}{8}[/tex] : 1 = [tex]\frac{33}{4}[/tex] : x, where x is the time taken to complete  [tex]\frac{33}{4}[/tex] feet.

⇒  [tex]\frac{5}{8}[/tex] / 1 =  [tex]\frac{33}{4}[/tex] / x

Cross multiplying, we get

 [tex]\frac{5}{8}[/tex] × x = [tex]\frac{33}{4}[/tex] × 1

⇒ x =  [tex]\frac{33}{4}[/tex] × [tex]\frac{8}{5}[/tex] = [tex]\frac{66}{5}[/tex] = 13 [tex]\frac{1}{5}[/tex]

Hence the minimum amount of time the equipment must continue at the present rate to complete the hole on schedule is 13 hours and 12 minutes.

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