Some examples...
.25= 1/4
.75=3/4
a fraction is 100% so 1/4 is 100÷4=25
its just division hope this helps.
1. The net of a square pyramid and its dimensions are shown in the diagram below. What is the total surface area of the square pyramid in the square centimeters? 6 cm 6 cm 108 O 72 0216 O 180
Answer:
8
Step-by-step explanation:
8
An ethanol railroad tariff is a fee charge for shipments of ethanol on public railroads. The Agriculture Marketing Service publishes tariff rates for railroad-car shipments of ethanol in the Biofuel Transportation Database. Assuming that the standard deviation of such tariff rates is $1150, determine the probability that the mean tariff rate of 500 randomly selected railroad-car shipments of ethanol will be within $100 of the mean tariff rate of all railroad-car shipments of ethanol.
Answer:
The appropriate response is "0.9476".
Step-by-step explanation:
The given values are:
Standard deviation,
[tex]\sigma=1150[/tex]
Randomly selected railroad-car shipments,
n = 500
As we know,
⇒ [tex]\sigma \bar{x}=\frac{\sigma}{\sqrt{n} }[/tex]
On substituting the values, we get
⇒ [tex]=\frac{1150}{\sqrt{500} }[/tex]
then,
⇒ [tex]=P(-1.94<Z<1.94)[/tex]
⇒ [tex]=P(Z<1.94)-P(Z < -1.94)[/tex]
On using the table of P, we get
⇒ [tex]=0.9738 - 0.0262[/tex]
⇒ [tex]=0.9476[/tex]
The graph shows the relationship between the total cost,
t
, of purchasing a steel beam
f
feet long.
Part B
Which statement about the graph is true?
Answer:
Its c
Step-by-step explanation:
Find the surface area.
Answer:
c
Step-by-step explanation:
A manager at a factory finds that in a random sample of 200 clocks, 15 are defective. What percent of the clocks are defective?
Of the 10,000 clocks from which the sample was chosen, about how many clocks are probably not defective.
The next day the manager finds only 8 of the 200 randomly selected clocks are defective. About how many clocks out of the 10,000 produced that day are probably defective?
Answer:
Part A-7.5%
Part B-?
Part C-400 clocks
Step-by-step explanation:
part a-Write a sample ratio.-Divide the numerator by the denominator and multiply by 100.
part B-Use the sample ratio.-Multiply the sample ratio by the total number of clocks in the population.
Part C-Write a sample ratio.-Multiply the sample ratio by the total number of clocks in the population.
Percentage is a way to describe a part of a whole. Of the 10,000 clocks from which the sample was chosen, 400 clocks were defective.
What is Percentage?A percentage is a way to describe a part of a whole. such as the fraction 1/4 can be described as 0.25 which is equal to 25%.
To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
A.) As it is given that a random sample of 200 clocks is taken out of 10,000 clocks, out of this 200, 15 clocks are defective. Therefore, the number of clocks that are defective in 200 random samples is 15, which can be written as,
Percentage of defective clock[tex]= \dfrac{15}{200} \times 100= 7.5\%[/tex]
As we got the ratio of the defective clocks, therefore, the number of defective clocks in 10,000 clocks can be written as,
[tex]7.5\%\ of\ 10,000\\\\= 0.075 \times 10,000\\\\= 750[/tex]
Hence, Of the 10,000 clocks from which the sample was chosen, 750 clocks were defective.
B.) As in the next day, the manager finds only 8 of the 200 randomly selected clocks are defective. Therefore,
Percentage of defective clock[tex]= \dfrac{8}{200} \times 100= 4\%[/tex]
As we got the ratio of the defective clocks, therefore, the number of defective clocks in 10,000 clocks can be written as,
[tex]4\%\ of\ 10,000\\\\= 0.04\times 10,000\\\\= 400[/tex]
Hence, Of the 10,000 clocks from which the sample was chosen, 400 clocks were defective.
Learn more about Percentage:
https://brainly.com/question/6972121
solve the system of equations using substitution. Be sure to describe your work.
Step-by-step explanation:
using substitution, replace y in 3x+y=-12
3x-2x-7=-12
x-7=-12
x=5
y=-10-17
y=-17
x=5
An irregular hexagon has angles that measure the following. Angle 1: 2x + 15 Angle 2: 9x - 3 Angle 3: 77 Angle 4: 8x + 8 Angle 5: 13x Angle 6: x - 4 What is the value of x?
Answer: 19
Step-by-step explanation:
1) You combine like terms with all the angles
Ex. 2x + 15 + 9x - 3 + 77 + 8x + 8 + 13x + x - 4, which equals 33x + 93
2) You set up an equation using the formula for the sum of the interior angles
Ex. 33x + 93 = 180(n - 2)
3) Since a hexagon has 6 sides, n is 6
Ex. 33x + 93 = 180(6 - 2)
4) Solve like a regular equation
Ex. 33x + 93 = 180(6 - 2)
33x + 93 = 720
- 93 = - 93
33x = 627
- Divide 627 by 33
x = 19
2 quarts hold 8 cups. 5 qts fills X cups
Find the product of 1/2 * 3 1/4 * 1 1/2.
Please help I'm not really good at these.
Answer:
2 7/16
Step-by-step explanation:
1/2*13/4=13/8
13/8*3/2=39/16
39/16=2 7/16
Hope this helped!! :)
Stay safe and have a wonderful day/night!!!!!
Brainliest?!?!
Suppose your school is located 1.5 miles south of your home. The mall is located 4.4 miles east of the school. What is the shortest distance between your home and the mall? Round to the nearest tenth.
The shortest distance between your home and the mall is 3 miles or if you round it down, it will be 2.9 miles.
Suppose a is an irrational number
and is a rational number. Can
their sum be rational? Explain your
answer.
Answer:
The sum of a rational number and an irrational number is irrational
Step-by-step explanation:
By definition, an irrational number in decimal form goes on forever without repeating (a non-repeating, non-terminating decimal). By definition, a rational number in decimal form either terminates or repeats. If you add a non-repeating, non-terminating decimal to a terminating decimal, you still have a non-repeating, non-terminating decimal. If you add a non-repeating, non-terminating decimal to a repeating decimal, you will no longer have a repeating decimal.
Example:
[tex]3+\sqrt{5} = 3+2.236067977...=5.236067977....[/tex]
1. Find the sum of the measures of the interior angles of a convex 11-gon.
Answer:
The measure of the sum of interior angles of a 11-gon is [tex]1620^{o}[/tex].
Each interior angle is approximately [tex]147.273^{o}[/tex].
Step-by-step explanation:
A convex polygon has the measure of each interior angles to be less than [tex]180^{o}[/tex].
But,
sum of interior angles of polygon = (n - 2) x [tex]180^{o}[/tex]
where n is the number of sides of the polygon.
For a convex 11-gon, we have;
sum of angles of a 11-gon = (11 - 2) x [tex]180^{o}[/tex]
= 9 x [tex]180^{o}[/tex]
= [tex]1620^{o}[/tex]
Sum of angles of a 11-gon = [tex]1620^{o}[/tex]
To check: convex polygons' interior angles are less than [tex]180^{o}[/tex].
so that,
each interior angle of 11-gon = [tex]\frac{1620}{11}[/tex]
= [tex]147.273^{o}[/tex]
Which triangle makes this statement true?
Answer:
right and obtuse
Step-by-step explanation:
:)
solve
4(2x - 3) = 6x + 2
Answer:
x =7
Step-by-step explanation:
Let's solve your equation step-by-step.
4 ( 2x − 3 ) = 6x + 2
Step 1: Simplify both sides of the equation.
4 ( 2x − 3 ) = 6x + 2
( 4 ) ( 2x ) + ( 4 ) ( −3 ) = 6x + 2 ( Distribute )
8x + −12 = 6x + 2
8x − 12 = 6x + 2
Step 2: Subtract 6x from both sides.
8x − 12 − 6x = 6x + 2 − 6x
2x − 12 = 2
Step 3: Add 12 to both sides.
2x − 12 + 12 = 2 + 12
2x = 14
Step 4: Divide both sides by 2.
2x / 2 = 14 / 2
x = 7
Hope it helps
Please mark me as the brainliest
Thank you
A rectangle has a perimeter of 35 1 half feet. If the length is 12 feet, what is the area of the rectangle?
Answer:
The area of the rectangle is 69 feet squared.
Step-by-step explanation:
Add the following polynomials
( -5m) + ( - 2m) + ( - m)
Answer:
-8m
Step-by-step explanation:
Answer:
7m³
Step-by-step explanation:
the answer is 7m³
- - =+
-5m+-2=7m²
7m²+-m=7m³
-2(-6) in expanded form
Please help!
Find cos 45°
7.
Which points are on the graph of the function rule f(x) = 10 – 4x?
A. (2, –18), (0, –10), (–2, –2)
B. (–2, 18), (0, 10), (2, 2)
C. (18, –2), (10, 0), (2, 2)
D. (–18, 2), (–10, 0), (–2, –2)
Answer: B. (-2, 18), (0, 10), (2, 2)
STEP 1: f(18)= 10 - 4 * 18= 10 - 72= -62... (18, 62)
STEP 2: f(-18)= 10 - 4 * -18= 10 - (-72)= 82... (-18, 82)
STEP 3: f(2)= 10 - 4 * 2=10- 8= 2... (2, 2)
Step-by-step explanation: GRAPHING....
Graph the line using the slope and y-intercept, or two points.
Slope:
− 4
y-intercept:
( 0 , 10 )
x y
0 10
(5) /(2) 0
Nigel drew a parallelogram with a base length of 6 3/4 inches and a height of 2 5/8 inches. Krista made a scale drawing of Nigel's parallelogram using a scale factor of 1/3 .
Answer: Krista's drawing would have a base length of 2 and 1/4 inches and a height of 7/8 inches
Step-by-step explanation: First you do 6 divided by 3 which is 2 then you make 3/4 in twelfths and you get 3/12, then you simplify that into 1/4. Then
you combine those and get a base length of 2 and 1/4 inches.
Next, you do 2 and 5/8 divided by 3. Since 3 is less than 2 your answer would have to be less than 1. What i would do is make 2 and 5/8 into a fraction, which would be 21/8. then to make it easiest you multiply that by 1/3. which would equal 21/24. and then you simplify by dividing that by 3. Which would give you 7/8, which would give you your answer.
So the final answer would be a base length of 2 and 1/4 inches and a height of 7/8 inches.
What number goes in the box?
Answer:
10
Step-by-step explanation:
............................HELP PLSS
Answer:
72.34
Step-by-step explanation:
Calculated the value
936.24 cm
Step-by-step explanation:
First of all find the cm or m value of that inches value as it'll become harder to tackle with inches... then find the radius in inches... then find the area
Please help 25 points and brainliest!
Answer:
a = -29
Step-by-step explanation:
[tex]12=\frac{a+5}{-2} \\\\-24=a+5\\a=-24-5\\a=-29[/tex]
1st step is to multiply -2 on both sides
Step-by-step explanation:
12× -2 = a+5
-24 = a +5
a = 24+ 5
= 29
I NEED THE ANSWERS WITH AN EXPLANATION PLS!!
1. The perimeter = 120 m; length = 45 m ; breadth = ____
2. Perimeter of a rectangle = 250 m; breadth = 50m; length = _____
1) to find perimeter we multiply length and breadth so to find breadth we divide the perimeter by the length. which means, 120 divided by 45 and its 62.5 so the answer for the 1st question is 62.5
2. if we multiply length with breadth to find perimeter, just like the first one we divide the perimeter by the breadth. which means, 250 divided by 50 and it will be 5
Need help fast I really need it
Answer:
43in [squared]
Step-by-step explanation:
i counted and theres more than 40 so
Answer: D
Step-by-step explanation:
Someone help please
Answer:
77
Step-by-step explanation:
HAV A GREAT DAY hope this helps
4/21 as a decimal rounded to the nearest tenth
what color should I dye my hair??
Answer:
BRIGHT RED
Step-by-step explanation:
Someone help me solve
A dog is tied to a leash on a tree and the leash is 10 meters long. There is a bone 15 meters away but the dog easily gets the bone however, the leash doesn't get harmed how??????????????????????????
Answer:
One way the dog can easily reach the bone is given by the relationship between the dog, the tree, and the bone
The dog can easily reach the bone when the tree is between the the dog and the bone, and the dog was more than 5 meters behind the tree
Therefore the distance the dog can reach in the direction of the bone from its position behind the tree is more than 15 meters and the dog can easily get the bone while the leash is not harmed
Step-by-step explanation: