Grace was given the description “three less than the quotient of a number squared and nine, increased by eight” and was asked to evaluate it when n = 6. Her work is shown below.

In which step did she make an error?
step 1
step 2
step 4
step 5

Answer:

x=28 or C

Step-by-step explanation:

The graph shows a right angle which is 90 degrees

This means that the two angles seperated by line C added together will get 90 degrees.

That means the formula will be 2x+1+33=90

With that shown we can get rid of A and B

Next step is to add 33 and 1 together

This gives us 2x+34=90

Then we will move 34 to the other side by subtracting giving us 2x=90-34

Then we will subtract 90-34 which will get us 56

The equation is now 2x=56

The last step is to devide 2 from each side

This lets us get the answer x=28

Hope this helps!

Answer: C

Step-by-step explanation: a right angle is 90 degrees

2*28 = 56, 56 + 1 = 57

57 + 33 = 90

Therefore the answer is C.

Answer:

40

Step-by-step explanation:

the range is the number between the highest and lowest number. the lowest in this is 5 and the highest is 45

45-5=40

Answer:

B) 645cm²

The approximate surface area of this prism is 645cm².

Answer:

104 legs of horses means 26 horses, since you divide them by 4 to get the number of legs (4) per horse. If there are 36 heads and you subtract the 26 of the horses, you get 10 people heads. There were 26 horses and 10 people

Answer:

26

Step-by-step explanation:

104/4=26

Answer:

$528

Step-by-step explanation:

A. Calculating The Markdown Price

X=Markdown price

Original price: $600

Markdown rate: 20%

100%-20%=80%

The TV's price is now 80% of what it originally was.

[tex]\frac{x}{600} =\frac{80}{100\\}[/tex]

100x=48000

x=480

The price of the TV after being marked down is $480.

B. Calculating The Sales Tax

Y=Total sales tax

TV price: $480

Sales tax: 10% or 0.1

y=480*0.1

y=48

The total sales tax is $48

C. Calculating Your Total

x+y=total

480+48=total

total=528

You in total pay $528 for the TV.

The distance traveled by the skier traveled in 2 1/2 minutes is A = 2,700 m

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Given data ,

Let the proportion be represented as A

Now , the value of A is

Let the distance traveled by the skier in 4 seconds = 72 m

And , let the distance traveled by the skier in 2 1/2 minutes = A

where 2 1/2 minutes = 150 seconds

Now , the proportion is

A / 150 = 72 / 4

Multiply by 150 on both sides , we get

A = ( 150 x 72 ) / 4

On simplifying , we get

A = 2,700 meters

Therefore , the value of A is 2,700 meters

Hence , the distance is 2,700 m

To learn more about proportion click :

https://brainly.com/question/7096655

#SPJ3

Answer:

1.grass

2.grasshopper

3.frog

4.fungi

Step-by-step explanation:

Answer:

No because it doesn't start at it's origin

Step-by-step explanation:

I just took the test

Answer:

7 =

Mean x¯¯¯ 30

Median x˜ 30

Mode 32

8 =

Mean x¯¯¯ 61

Median x˜ 65

Mode 65, 70, 67, 48, 55

Step-by-step explanation:

Answer:

6.2 cm

Step-by-step explanation:

V=4 /3πr^3

4 /3*π*6.2^3 = 998 cm cubed

Have a good day :)

Answer: the range is 18

Step-by-step explanation:

the farthest numbers are 19 and 37. Substract. range=18

hope this helped :)

Answer: the answer is d

Step-by-step explanation:

you move up from -6 up 4 and get -2, remember under 0 is a negative and you are moving forward not backwards.

Answer:

what i need to do?

Step-by-step explanation:

Answer:

Runner #2 has the fastest pace.

Step-by-step explanation:

Runner #1's pace is 10 minutes per mile. You can see this shown in the graph where the line hits the halfway mark on the y axis at one minute, or (1,10). This is the unit rate of minutes per mile for Runner #1's speed.

Runner #2's pace is 8.5 minutes per mile. You can see this shown in the equation used to represent their speed, t=8.5d. T stands for time and d stands for distance. This means that 8.5 represents how much time it takes to travel the distance of a mile. This is the unit rate of minutes per mile for Runner #2's speed.

Runner #3's pace is 9 minutes per mile. You can see this shown in the table through division. To figure out how much time it takes to travel one mile, you need to divide the time by the distance. 18÷2=9, 36÷4=9, 54÷6=9 72÷8=9, 90÷10=9, and so on. The pattern here is that the result is all 9. This is the unit rate of minutes per mile for Runner #3's speed.

10>8.5 8.5<9

It takes Runner #2 the least amount of time to travel a mile, so Runner #2 has the fastest pace.

Hope this helps!

Answer:

I got Runner #2 since runner 1 and 3 are the same

Step-by-step explanation:

I learned this

Runner 1 is running 6 miles per hour

Runner 2 is running faster since the others are the same

Runner 3 is running 6 miles per hour

HOPE THIS HELPS   : )

Answer:

5.70 for 19

Step-by-step explanation:

Answer:

x=4

Step-by-step explanation:

Let's solve your equation step-by-step.

−x=2−3x+6

Step 1: Simplify both sides of the equation.

−x=2−3x+6

−x=2+−3x+6

−x=(−3x)+(2+6)(Combine Like Terms)

−x=−3x+8

−x=−3x+8

Step 2: Add 3x to both sides.

−x+3x=−3x+8+3x

2x=8

Step 3: Divide both sides by 2.

2x/2 = 8/2

x=4    

Answer:

7: 2.5 hours

Why?

Divide 2 hours into 4, and add 1/4 to 2 hours.

Answer:

8: 50-m

Why?

Divide 400 into 8

Answer:

(95-36)+(95-15)+(95-24)=F

Step-by-step explanation:

Answer:

14 out of 24 passed the test and did the homework, which is 0. 583 or 58.3%

Answer:

100

Step-by-step explanation:

Answer:

x - 6 = 15

Craig is 21 years old

Step-by-step explanation:

x = Craig's age, 15 = Sue's age, and Sue is 6 years younger than Craig, so 15 (Sue's age) is 6 (Years) less than x (Craig's age). The equation is

x - 6 = 15

Using this, x - 6 = 15, we can add 6 to both sides to get x = 21, Craig is 21 years old

Answer:

what the

Step-by-step explanation: .

Answer:

0.25

Step-by-step explanation:

Answer:

2/3

Step-by-step explanation:

1. Count the number of spaces that are not shaded. I got 24, and to double check I counted the number that are shaded and subtracted that from the total, which is 36 (since 6x6=36).

2. Put this number over 36. This results in .6 repeating, or 2/3.

Answer:

Step-by-step explanation:

1:dang you got a lot of tabs open

2:charge your device

3:yo you need to put more info down you just send an image saying a thing with no explaination. and don't send links. so dont get upset when noone can answer your Q

4:im not trying to be mean

5:i hope you find your answer

Answer:

B

Step-by-step explanation:

I'm pretty sure it's B. Sorry if I'm wrong.

Answer:

wouldn't it be B

Step-by-step explanation:

because the formula is 2pi r  but with the 2 at the bottom the pi r  would be at the top.