Seth is trying to find the unit price for a package of blank compact discs on sale at 10 for $5.49. Find his mistake and correct it. Here's his math problem - 10/$5.49 =$1.82 each

QUESTION POSTED AT 19/02/2020 - 04:38 PM

Answered by admin AT 19/02/2020 - 04:38 PM

He needs to flip the equation. So the real answer is 5.49/10=0.549
Post your answer

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The radius of the sphere is 10 units.What is the approximate volume of the sphere? Use π = 3.14 and round to the nearest whole cubic unit. cubic units

Answer:

V = 4187 cubic units.

Step-by-step explanation:

Volume of a sphere = 4/3*π*r^3

Given: r = 10, π = 3.14

Volume of the sphere = 4/3*3.14*10^3

= 4/3*3.14*1000

= 4/3*3140

= 12560/3

V = 4186.66

When we round to the nearest whole number, we get V = 4187 cubic units.

Hope this will helpful.

Thank you.

ANSWERED AT 31/03/2020 - 10:47 AM


QUESTION POSTED AT 31/03/2020 - 10:47 AM

F(x)= x^2-1 .Find the graph of f(2/3x)

Draw graph of f(x) = x^2-1
change scale on x-axis by 3/2
( 1 -> 3/2 , 2-> 3, 3->9/2, ... )

ANSWERED AT 31/03/2020 - 10:46 AM


QUESTION POSTED AT 31/03/2020 - 10:46 AM

Find the volume V of the cone

V=πr^2(h/3)
V≈804.25

Since the height is 12, and radius is 8, take the radius and square it. 8 squared equals 64. Now, take the height (12) and divide that by three. This equals 4. 

So Volume = Pi times 64 times 4. The answer should be 804.247. Once rounded, you should get 804.25

ANSWERED AT 31/03/2020 - 10:46 AM


QUESTION POSTED AT 31/03/2020 - 10:46 AM

Let the sequence {an} be defined so that a1 = 1 and each succeeding term is found by multiplying the one before it by 4. Find the formula representing an, the nth term of the sequence.

A₁ = 1 = 4⁰

a₂ = 4 =4¹

a₃ =4 x 4=4²

a₄ =4 x 4² =4³
...................
...................

a(n) = 4⁽ⁿ⁻¹⁾

ANSWERED AT 31/03/2020 - 10:44 AM


QUESTION POSTED AT 31/03/2020 - 10:44 AM

Find the first, fourth and eighth terms for a(n)=-3*2^n-1 please help!

1 is -3        4 is -24     8 is -384    I think that's right

ANSWERED AT 31/03/2020 - 10:42 AM


QUESTION POSTED AT 31/03/2020 - 10:42 AM

Explain how u find the area of the base of a pyramid

The base of the pyramid is a square. Area of a square
A= l x w

ANSWERED AT 31/03/2020 - 10:40 AM


QUESTION POSTED AT 31/03/2020 - 10:40 AM

Franklin walked 1/3 mile in 8 1/2 min what is the unit rate in miles per minute

8 1/2 minutes=17/2 minutes

1/3 mile:17/2 minutes
? mile: 1 minute

1/3÷17/2=1/3×2/17=2/51 miles. As a result, the unit rate is 2/51 mile per minute. Hope it help!

ANSWERED AT 31/03/2020 - 10:40 AM


QUESTION POSTED AT 31/03/2020 - 10:40 AM

Over the last 12 month, Petco has lost a total of $1824.00 due to shoplifting. Write and solve an equation that shows how much money Petco lost each month. ( Since they have lost the money, remember that you need to use negative integers to represent the situation correctly.)

Take y=mx+b  
let x=years and 
y=lost money

then divide 1824 by 12 = 152
and since it is a loss make it into -152
and insert it for m as the constant rate of loss per month
your answer should be y=-152x.
if the store has a starting amount of money plug that into b.

ANSWERED AT 31/03/2020 - 10:40 AM


QUESTION POSTED AT 31/03/2020 - 10:40 AM

This is problem six of the homework that you ask for

This equation could represent the relationship e=8.75h

ANSWERED AT 31/03/2020 - 10:38 AM


QUESTION POSTED AT 31/03/2020 - 10:38 AM

A gas stove that sells for $749 is on sale at a 30% discount. What is the sale price of the gas stove?

All you have to do is change the percent to a decimal.
30%= 0.30
Then multiply
$749 * 0.30 =
Sales Price = $224.70

ANSWERED AT 31/03/2020 - 10:38 AM


QUESTION POSTED AT 31/03/2020 - 10:38 AM

Find the area of the shaded portion of the diagram (use 3.14 for p).A)220.16 square yardsB)6.88 square yardsC)55.04 square yardsD)13.76 square yards

Get the area of the circle. Use this formula: 
Area =  \pi * radius^2

We know the radius is 4 yards.

Area = 3.14 * 4^2
Area = 3.14 * 16
Area = 50.24

Now for the square. Double the radius to get the diameter to get the length of the side.

4 * 2 = 8

Formula for finding the area of a square is
Area = side^2

Area = 8^2
Area = 64

And because we only want to shaded portion, we will subtract the area of the circle from the square.

64 - 50.24 = 13.76

So, 
D) 13.76 square yards is the answer to this question.

ANSWERED AT 31/03/2020 - 10:38 AM


QUESTION POSTED AT 31/03/2020 - 10:38 AM

It takes Ivanna 3 minutes to complete 2 problems on her math homework . How long will it take Ivanna to complete 12 problems?

3 min to complete 2 problems
___ min to complete 12 problems  

It took her 6 min. Why. Divided 12 divided by 2 is 6. So if it took her 3 min to complete 2 problems then it took her 6 min to complete 12 problems. 
  


                      

ANSWERED AT 31/03/2020 - 10:37 AM


QUESTION POSTED AT 31/03/2020 - 10:37 AM

Can u help me find the prime number factors

8
4 2
2 2. The spaces mean multiply symbols

ANSWERED AT 31/03/2020 - 10:37 AM


QUESTION POSTED AT 31/03/2020 - 10:37 AM

I need help finding the other arc in order to solve for x

Hol up this seems rly hard Ima get back to uu

ANSWERED AT 30/03/2020 - 01:37 AM


QUESTION POSTED AT 30/03/2020 - 01:37 AM

Which of the following are units cubes?

The answer will be the second cube and the last cube because unit cube did not have any measure such as yard, feet,etc. As a result, we see that there are only two cubes that have that choice. Hope it help!

ANSWERED AT 30/03/2020 - 01:37 AM


QUESTION POSTED AT 30/03/2020 - 01:37 AM

What is the answer to the problem

Mean = 8
the mean is discovered by adding all the numbers and dividing by how many numbers are there
MAD= 4.29

ANSWERED AT 30/03/2020 - 01:32 AM


QUESTION POSTED AT 30/03/2020 - 01:32 AM

A population of 1,000 squirrels lives on a rectangle-shaped farm plot that is 25 feet long by 10 feet wide what is the population density

First, find the area of the plot:
25*10=250

1000/250 is 4

the population density is 4 squirrels per square foot.

ANSWERED AT 30/03/2020 - 01:30 AM


QUESTION POSTED AT 30/03/2020 - 01:30 AM

Consider the vector v=(-7,8). What is the angle between v=(-7,8) and the positive x-axis? Part 1: Use the formula v1 x v2=|v1||v2|cos theta to find the cosine of the angle between the two vectors (-7,8) and (1,0).

(1) To find the angle between v and positive x-axis, we first determine the angle formed by v and the negative x-axis. Since v = (-7,8), its vertical measure y is 8 units and horizontal measure x is 7 units.

arctan(8/7) = 48.81°
Solving for angle between v and positive x-axis:
180° - 48.81° = 131.19°

(2) v1 x v2=|v1||v2|cosθ
Calculating for the dot product of the vector:
v1 x v2 = -7*1 + 8*0 = -7
Calculating vector magnitude:
|v1| = √(-7²+8²) = √113
|v2| = √(1²+0²) =1

cosθ = (v1 x v2) /|v1||v2| = -7/(√113 *1) = -0.659

ANSWERED AT 30/03/2020 - 01:28 AM


QUESTION POSTED AT 30/03/2020 - 01:28 AM

Help me start finding the angle measures

A=60
B=30
C=60
D=120
E=60
F=60

ANSWERED AT 29/03/2020 - 06:35 PM


QUESTION POSTED AT 29/03/2020 - 06:35 PM

Find the area and peri19.6 ft13 ftA

The area is 38 because whenever you have to find the area in an equation you always add up the total sides. The shape is a rectangle and the only numbers they give is 6 and 13 obviously the sides are equal so the opposite side of 13 is 13 and the opposite side of 6 is 6 because they're both a certain length. In total you add up all the sides 13 plus 13 is 26, 6 plus 6 is 12 , 26 plus 12 is 38

The perimeter is 78 because they only give you two number so whenever you do a perimeter in an equation you always have to remember to multiply. 13 multiplied by 6 is 78. Hope this helped ( :

ANSWERED AT 29/03/2020 - 06:34 PM


QUESTION POSTED AT 29/03/2020 - 06:34 PM

Box and whisker plot how do you find the percentage of students above an 80%

What do you mean? Please message me the question and I will gladly help

ANSWERED AT 29/03/2020 - 06:34 PM


QUESTION POSTED AT 29/03/2020 - 06:34 PM

The price for 11 ballpoint pens is $11.77. Which of the following represents the same price per pen? A. 4 pens for $4.44 B. 5 pens for $6.05 C. 6 pens for $6.42 or D. 7 pens for 7.82

First you have to find out how much one pen costs. To do that, all you have to do is divide $11.77 by 11. So,
$11.77/11=$1.07
Then it's just trial and error from there in till you find one that matches. So,
A. 4*$1.07= $4.28( This one is wrong )
B. 5*$1.07= $5.35( This one is wrong )
C. 6*1.07= $6.42 ( !!This one is RIGHT!! )
D. 7*1.07= $7.49 ( This one is wrong )

ANSWERED AT 29/03/2020 - 06:34 PM


QUESTION POSTED AT 29/03/2020 - 06:34 PM

Given conversion factor 12in/1ft, what is the above line segments's unit of measure in feet?

The answer would be 7

ANSWERED AT 29/03/2020 - 06:34 PM


QUESTION POSTED AT 29/03/2020 - 06:34 PM

40 + 20 + 10 + … ; n = 10 Find the sum of each finite geometric series.

I've attached a picture below of the formula for a finite geometric sequence. It includes an infinite geometric sequence formula for your reference, too.

a_1 = 40
r(ratio)= \frac{1}{2}
n=10

Plug in the values. 

S_{10}=40*( \frac{1- \frac{1}{2}^{10} }{1- \frac{1}{2} } )
S_{10}=40*( \frac{1- \frac{1}{1024} }{\frac{1}{2} })
S_{10}=40*( \frac{\frac{1023}{1024} }{\frac{1}{2} })
S_{10}=40*1.998046875
 S_{10} = 79.921875
S₁₀ ≈ 79.92

ANSWERED AT 29/03/2020 - 06:31 PM


QUESTION POSTED AT 29/03/2020 - 06:31 PM

Write 76% as a decimal and also a reduced fraction. 2. Master Shifu tries to discourage Po from training. He teases Po about messing up 4 out of every 10 Kung Fu moves that he tries to do. What percent of Po's moves does he mess Up?

Write 76% as a decimal and as a reduced fraction.

Decimal : 0.76

Fraction : 76/100, which then simplifies to 38/50, because you divide the numerator & denominator by 2. Then, you divide them by 2 again, and get 19/25. 

Reduced Fraction : 19/25

2) Po messes up 4 out of every 10 moves. 

So, to make this slightly easier, we're going to turn that (above) into a fraction!

Fraction : 4/10

Then, we turn it into a decimal.

To turn it into a decimal, multiply 4/10 by 10/10, so that the denominator is 100. 

Fraction: 4/10 × 10/10 = 40/100

Decimal : Because the denominator is 100, all we have to do is add a decimal marking 2 places to the left of the last digit. (0.40)

Now, because we have our decimal, we simply say that the percentage is 40%.

Why? Because if the decimal is in the hundredths place, all you need to do is take the numbers on the right side of the decimal marking, and add a percentage sign to it.

~Hope I helped!~


ANSWERED AT 29/03/2020 - 06:31 PM


QUESTION POSTED AT 29/03/2020 - 06:31 PM

Given the function: f(x) = 2x2 - 3x + 8, find f(-2). A) -22 B) -11 C) 11 D) 22

Answer:

the answer is D (22)


Step-by-step explanation:


ANSWERED AT 29/03/2020 - 06:31 PM


QUESTION POSTED AT 29/03/2020 - 06:31 PM

Can someone please help me with math? A tutor or someone to break things down.

Ok Juvia is here for the job.

ANSWERED AT 29/03/2020 - 06:30 PM


QUESTION POSTED AT 29/03/2020 - 06:30 PM

I need help to find the cost of shirts and how much I bought?

If 2 is 25 then 1 is 12.5
12.5x 9 is 112.50
and 87.50/12.50 is 7 so theres the 2 boxes

ANSWERED AT 29/03/2020 - 06:30 PM


QUESTION POSTED AT 29/03/2020 - 06:30 PM