Look at the left-most part of the blue diagram. It is 1 unit high. The corresponding left-most part of the red diagram is 2 units high, which is twice as high as the blue portion it corresponds to.
The scale factor tells us how to enlarge or shrink the object. In this case, the red figure is twice as tall and wide compared to the blue figure.
You can pick any pair of corresponding sides to get the scale factor.
A shopkeeper buys a dress for $40
She sells it for $48
Work out the percentage increase in the price of the dress.
Answer:
48 - 40 = $8, there is a $8 dollar increase.
Formula for change of percentage;
changed price
___________ x 100% (100/100)
original amount
Replace those values with the values we found;
40/48 x 100/100 = 20% increase.
Is this a good app for school
what is 122x1,2222
Answer:
122x12222 = 1491084
Answer:
It is a good app, when used the right way.
Step-by-step explanation:
Your question isn't properly described. 122x1,2222, is that 1.2222 or was it supposed to be 12,222?
A cone-shaped frozen yogurt cup has a radius of 5 cm and a height of
9 cm. How many cubic centimeters of frozen yogurt can the cup hold?
Approximate your answer to the nearest hundredth.
Answer:
235.62 Cubic centimeters
Step-by-step explanation:
[tex]v = \frac{1}{3}\pi \: r {}^{2} h \: = \frac{1}{3} \times \pi \times 5 {}^{2} \times 9 \\ \\ = 75\pi = 235.62[/tex]
Answer:
235.62 Cubic centimeters
Step-by-step explanation:
have a nice day.
Select multiples of 4. You will select three.
2
4
22
36
42
48
Answer:
Multiples of 4 are the following:
43648Step-by-step explanation:
2 is a factor of 4, not a multiple. The rest of the numbers listed are multiples of 2. But only the 3 listed above are multiples of 4.
Answer:
4,36,48
Step-by-step explanation:
The multiples of 4 is: 36,48,and 4 because there all in the multiplication chart.
*Please give brainliest*
Write 24:18 in a simplest form
Answer:
4:3
Step-by-step explanation:
24:18
Divide each side by 6
24/6 : 18/6
4:3
A large wooden box, as shown, has a volume of 4352 ft3. The box is a right square prism with a base with sides that each measure 16 ft. What is h, the height of the box?
To find the volume of a prism, we can use the following formula:
[tex]V=base\hspace{3}area*height[/tex]
Although this formula is typically used to find the volume of a prism, we can also use it to find the base area or height, as long as we re-arrange it accordingly.
For a rectangular prism, the base area is solved using the following formula:
[tex]A=lw[/tex] ⇒ where l is the length and w is the width
Solving the QuestionWe're given:
V = 4352 ft³l = 16 ftw = 16 ftWe need to solve for the height of the box.First, find the base area:
[tex]A=lw\\A=16^2\\A=256[/tex]
Therefore, the base area is equal to 256 ft².
Now, modify the volume formula to isolate the height:
[tex]V=base\hspace{3}area*height[/tex]
⇒ Divide both sides by the base area:
[tex]\dfrac{V}{base\hspace{3}area}=\dfrac{base\hspace{3}area*height}{base\hspace{3}area}\\\\\dfrac{V}{base\hspace{3}area}=height\\\\height=\dfrac{V}{base\hspace{3}area}[/tex]
⇒ Plug in the given values:
[tex]height=\dfrac{4352}{256}\\\\height=17[/tex]
Therefore, the height of the box is 17 ft.
AnswerThe height of the box is 17 ft.
Answer:
17
Step-by-step explanation:
Can someone please help me with this? I have a test tommorow on this subject and I'm very confused. :(
Prism: V = Bh
Cylinder: V = πr²h
Answer:
452.16 in. or 144π if the answer needs to be in terms of pi.
Step-by-step explanation:
In this case, all of the information is given to you. You can determine this is a cylinder because of its circular bases. Your height is given on the side as 9in. Your radius is given on the base as 4in. You can tell that this value is the radius and not the diameter because the line only covers half of the circular base. If the line went from one edge to the other, you would need to divide the given value by 2. From there, you can just plug the numbers into the proper equation.
V = πr²h
V = π(4)²(9)
V = 452.16 or 144π
Matthew's family traveled 3/8 of the distance to his grandmother’s house on Saturday. They traveled 3/5 of the remaining distance on Sunday. What fraction of the total distance to his grandmother’s house was traveled on Sunday?
Answer:
3/8 of the total distance.
Step-by-step explanation:
After Saturday = 8/8 - 3/8 = 5/8 of distance left.
Sunday = 5/8 x 3/5 = 3/8 distance.
Hope this helps!
plss help me plss #3
Name the relationship between ∠a and ∠b.
Answer:
B. Adjacent
Step-by-step explanation:
Supplementary angles add up to 180 degrees, so cross of A. Vertical angles are directly across from each other, so cross off C. Corresponding angles are related to lines and a transversal which you don't have, so you can cross of D, leaving the answer as B.
Hopefully this helps - let me know if you have any questions!
A restaurant manager bought a case of 12 bottles of water. He paid 90p per bottle. He sold 1/4 of the bottles for £2.10 per bottle and the rest of the case for £2.40 per bottle. a) How much profit did he make? b) Write the profit as a percentage.
Step-by-step explanation:
12 bottles for 0.90 per bottle = 12×0.90 = £10.80 as initial cost.
1/4 of 12 = 12×1/4 = 12/4 = 3 bottles
so, 3 bottles are sold for £2.10 per bottle = 3×2.1 = £6.30
the rest (12-3) 9 bottles are sold for £2.40 per bottle = 9×2.4 = £21.60
so, the total sales was 6.3 + 21.6 = £27.90.
the profit is then sales minus initial cost :
27.9 - 10.8 = £17.10
1% of the initial cost is 10.8/100 = 0.108
how often does 1% fit into the total profit ?
17.1/(10.8/100) = 17.1×100/10.8 = 158.3333333...%
so, the profit is 158.3333333...% of the initial cost.
Find dy/dx in terms of x and y
3x sin y + 2 cos y = sin x
[tex]3x\sin y+2\cos y=\sin x[/tex]
[tex]\dfrac{\mathrm d(3x\sin y+2\cos y)}{\mathrm dx}=\dfrac{\mathrm d(\sin x)}{\mathrm dx}[/tex]
[tex]\dfrac{\mathrm d(3x)}{\mathrm dx}\sin y+3x\dfrac{\mathrm d(\sin y)}{\mathrm dx}+\dfrac{\mathrm d(2\cos y)}{\mathrm dx}=\cos x[/tex]
[tex]3\sin y+3x\cos y\dfrac{\mathrm dy}{\mathrm dx}-2\sin y\dfrac{\mathrm dy}{\mathrm dx}=\cos x[/tex]
Solve for dy/dx :
[tex]3\sin y+\left(3x\cos y-2\sin y\right)\dfrac{\mathrm dy}{\mathrm dx}=\cos x[/tex]
[tex]\left(3x\cos y-2\sin y\right)\dfrac{\mathrm dy}{\mathrm dx}=\cos x-3\sin y[/tex]
[tex]\dfrac{\mathrm dy}{\mathrm dx}=\boxed{\dfrac{\cos x-3\sin y}{3x\cos y-2\sin y}}[/tex]
A news article reports that 52% of voters plan to vote for Vicente and 48% of voters plan to vote for Raul.
The margin of error is 3%.
Is there enough statistical evidence to say that Vicente is in the lead?
No, because the confidence interval do not overlap we do not have enough evidence to say that the parameters are different.
Confidence interval of the dataThe confidence interval will help to determine if there is enough evidence in the statistical data draw conclusion that Vicente has the lead.
The confidence interval is 48% - 3% to 48% + 3%, which is equivalent to 45% to 51%.
Since 52% does not lie in the above interval, therefore we can say no, because the confidence interval do not overlap we do not have enough evidence to say that the parameters are different.
Learn more about confidence interval here: https://brainly.com/question/15712887
Answer:
Step-by-step explanation:
NO
a formula one racecar driver estimates that he needs to maintain an average speed of 113 miles per hour in order to set a new lap record on an Australian racetrack. since australia uses si units, the average speed will be reported to the driver in kilometers per hour. if the driver successfully maintained an average speed of 113 miles per hour during the lap, what would the report show as his average speed in kilometers per hour? round your answer to the nearest hundredth
Answer:
181.82 km/h
Step-by-step explanation:
1 mile = 1.609 km
so 113 miles/hour = 113 * 1.609 = 181.82 km/h
Follow the steps to solve the equation using algebra tiles. -4x + 1 = x + (-4)
Answer:
x=1
Step-by-step explanation:
This can be simplified to -4x+1=x-4
add 4 to both sides
-4x+5=x
Flip it so it is easier to work with
x=-4x+5
add 4x to both sides
5x=5
Divide by 5
x=1
Show all steps necessary to verify the trigonometric identity:
1 - 2cos^2x = 2sin^2x - 1
Step-by-step explanation:
please mark me as brainlest
Using trigonometric identity sin²θ+cos²θ=1, the given identity is proved.
The given trigonometric identity is 1-2cos²x = 2sin²x-1.
What are trigonometric identities?Trigonometric Identities are the equalities that involve trigonometry functions and holds true for all the values of variables given in the equation. There are various distinct trigonometric identities involving the side length as well as the angle of a triangle.
Using trigonometric identity sin²θ+cos²θ=1
Here, 1-2cos²x = 2sin²x-1
⇒ 1+1=2sin²x+2cos²x
⇒ 2=2(sin²x+cos²x)
⇒ 2=2(1)
⇒ 2=2
LHS=RHS
Therefore, using trigonometric identity sin²θ+cos²θ=1, the given identity is proved.
Learn more about the trigonometric identity here:
https://brainly.com/question/24377281.
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Using the cross multiplication method, which of the following is the solution to 1/(x+1) = 17/(x+2)?
Answer:
x = -15/16
Step-by-step explanation:
see image.
Cross-multiply and combine like terms. Finally divide to get x all by itself.
see image.
2
Type the correct answer in the box. Use numerals instead of words.
What is the total surface area of an equilateral triangular pyramid with base side lengths of 6 feet and a height of 10 feet?
The total surface area is about
square feet.
107
110
132
93
The area of the equilateral triangular pyramid is the amount of space on it
The total surface area is 107 square feet
How to determine the total surface area?The given parameters are:
Base (b) = 6 feet
Slant height (l) = 10 feet
The lateral surface area is calculated using:
L = 1.5bl
So, we have:
L = 1.5 * 6 * 10
Evaluate the product
L = 90
The total surface area is calculated using:
T = L + 0.25√3b^2
So, we have:
T = 90 + 0.25√3 * 6^2
Evaluate
T = 107
Hence, the total surface area is 107 square feet
Read more about areas at:
brainly.com/question/24487155
Answer:
107 sq ft
Step-by-step explanation:
Got it right on Edmentum
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Based on the video, how many states currently have primary seat belt laws where you can receive a ticket for not wearing a seat belt?
50 States
21 States
31 States
35 States
Answer:
50 states bb bbdbeu28nefd
What is 17/5 as a mixed number in simplest form ?
Answer:
3 [tex]\frac{2}{5}[/tex]
Answer:
3 and 2/5 i believe
please say if im wrong or right
Step-by-step explanation:
Someone good at math pls help me will give brainlist and the most life saver in the world
Answer:
The answer is -46,8
ok so!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! mark me brainliest
How do I solve for y ?
Answer: 52
Step-by-step explanation:
The ratio of girls to boys in a class is 9:6. The average class size in the school is 25 students. Suppose this class is representative of all the students in the school. How many students in this class are boys?
Step-by-step explanation:
Here is the correct answer...
I hope you understand...
The graph of a proportional relationship contains the point (8, 4).
What is the corresponding equation?
y=−2/1x
y=−1/2x
y=1/2x
y=2/1x
Please Help
Answer:
y = 1/2x
Step-by-step explanation:
Points are (8,4)
x = 8
x = 8y = 4
y= −2/1x
4= -2(8)
4= -16
That's wrong
y= −1/2x
4= -1/2(8)
4= -4
That's wrong
y=1/2x
4=1/2(8)
4=4
That's right
y=2/1x
4=2(8)
4=16
That's wrong
So the answer is choice C
.
evaluate 16^-3/4
Evaluation of the exponents
Answer:
I think it is -12
Multiply -0.75 (3 quarters) by 16.
The negative cancels out the positive number.
Since the exponent is not saying multiply the number by itself a number of times, we could make a hypothesis that this is just multiplication.
Normally, this ↑ is not the case, but here, I could make an exception.
I hope this helps you, let me know if you need something else.
The pH scale measures the acidity of a liquid as a function of its hydrogen ion(H+) concentration pH=-log[H+] A chemist needs to prepare a solution with a pH of three. What H+ concentration should the solution have?
Answer:
H+ = 0.001
Step-by-step explanation:
3 = -log[H+]
Identity to use: [tex]-log_{b}(a) = log_{b}(1/a)[/tex]
3 = log[ 1 / H+ ]
Identity to use: [tex]10^{log(x)} = x[/tex]
Therefore, I am going raise each side of the equation to the power of 10 to isolate [ 1 / H+ ]
10³ = [tex]10^{log(\frac{1}{H+} )}[/tex]
1000 = 1 / H+
H+ = 1 / 1000
Answer: H+ = 0.001
WORTH 100 POINTS WILL PICK BRAINLYLIST Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match each prism with its volume or dimensions.
Answer:
1, 1/2, 3/2
Step-by-step explanation:
This is a prism (a 3d rectangle) and so your formula for finding the volume is V= L x W x H.
For the prism:
L= 1 (4 cubes x 1/4 = 4)
W = 1/2 (2 cubes x 1/4 = 1/2)
H = 3/2 (6 cubes x 1/4 = 6/4 = 3/2)
That's your answer, the tile 1, 1/2, 3/2
Hellllllllllpppppppp
Answer:
C
Step-by-step explanation:
Translate up & left then reflect over y axis.
Answer:
C
Step-by-step explanation:
First you have to translate up and then left, then reflect over the y axis.
How much will a person pay for 7 pounds of bananas at a price of $0.49 per pound?
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Answer:
$3.43
Step-by-step explanation:
Multiply 7 by 0.49
Find the measure of the angle. (two more and i'm done, sorry)
Answer:
c=102°
b=(360-204)/2 = 78°
Answers:
b = 78
c = 102
=================================
Explanation:
Let's find angle b. This angle adds to the 102 to get 180 since the two angles form a straight angle.
102+b = 180
b = 180-102
b = 78
Then we can apply the same idea to find angle c
b+c = 180
78+c = 180
c = 180-78
c = 102
A shortcut to find angle c is to recall that vertical angles are congruent. The proof of the vertical angle theorem is effectively the steps shown above.