If ΔP′QR′ is a dilated image of ΔPQR, find the scale factor (k) and then find the value of x. answers: A) 7 B) 10.7 C) 6 D) 73.5
Answers
Answer:
see explanation
Step-by-step explanation:
To find k, calculate the ratio of corresponding sides, image to original, that is
k = \(\frac{P'R'}{PR}\) = \(\frac{8}{28}\) = \(\frac{2}{7}\)
Thus
QR' = \(\frac{2}{7}\) × QR = \(\frac{2}{7}\) × 21 = 2 × 3 = 6 , that is
x = 6 → C
Related Questions
This table shows the total cost with shipping of buying a certain number of posters from an online store.
Which equation represents the relationship between the number of posters, x, and the total cost, y?
y=12x+23
y equals 12 x plus 23
y=6x+5
y equals 6 x plus 5
y=6x+23
y equals 6 x plus 23
y=2x+12
Answers
Answer: y=6x+5
Step-by-step explanation:
we can use system of equations to figure it out
assume format ax + b = y
a(3) + b = 23
a(5) + b = 35
Subtract equations from each other
-2a = -12
a=6
Now use substitution
(6)(3) + b = 23
18 + b = 23
b = 5
so therefore, y=6x+5
The mass of Earth is about 5.97 x 1024 kilograms and the mass of Pluto is about 1.3 x 1022 kilograms.
Answers
Answer:
Step-by-step explanation:
true
24
Kg
Mass of the moon =7.35×10
22
Kg
Difference of their masses in Kg =5.97×10
24
−7.35×10
22
=(5.97×10
2
−7.35)10
22
=(597−7.35)×10
22
=589.65×10
22
=589.65×10
24
=5.89×10
24
coefficient of x^2 in the expansion of (x-3)^3
Answers
Answer:
\(-9\)
Step-by-step explanation:
\((x-3)(x-3)(x-3)\)
\((x^2-6x+9)(x-3)\)
\(x^3-9x^2+27x-27\)
Therefore, the coefficient of \(x^2\) is \(-9\).
Answer:
-9
Step-by-step explanation:
=> (x-3)³
=> (x-3)(x-3)(x-3)
=> (x²-6x+9)(x-3)
=> x³-3x²-6x²+18x+9x-27
=> \(x^3-9x^2+27x-27\)
So, the coefficient of x² is -9
Does anyone have the answer key to "Understand Systems of Linear Equations I-ready level H instruction?"
Answers
Answer:
no bro, sorry. even though I needed to I don't have it
Diana ordered a shipment of 48 sun hats for the store she owns. Of the 48 hats she ordered, about 20% were pink. How many of the hats were pink?
Answers
Answer: If the answer was a half then I would say about 9.6 but if the answer if a whole then the whole would be 10 but doing the math out the answer is 9.6. Have a wonderful day
Answer:
20% of 48 is 9.6, or 10 if you round up. If you rounded down it would be 9
Step-by-step explanation:
A cylinder has a radius of 4 cm and a height of 5cm. What is the volume of the cylinder?
Answers
Answer:
251.33
Step-by-step explanation:
Accurate Answer : V=πr2h=π·42·5≈251.32741cm³
Need help the questions are in the attachment
Answers
Answer:
A= 2.48
B=0.84
C=4.5
D=15.3
B=0.84
C=4.5
D=15.3
Select ALL the correct answers.
Brandon goes to an ATM near his house and withdraws x dollars from his checking account. Since the ATM is not at the same bank where his checking account is, the bank charges a $2 fee for each transaction, which is withdrawn from his account in addition to the x dollars.
Brandon makes this same withdrawal at this same bank once a week for seven weeks. Which of the following expressions could represent the total amount withdrawn from Brandon's checking account during this time period from these ATM transactions?
(7)(x) + (7)(2)
7x + 9
7x + 14
7x + 2
(7)(x) + (7)(2x)
7(x + 2)
Answers
Answer:
(7)(x) + (7)(2) , 7x + 14 , 7(x + 2)
Step-by-step explanation:
help!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
1,and 5
Step-by-step explanation:
Mrs. Gomez is buying a triangular table for the corner of her classroom. The side lengths of the table are 5 feet, 3 feet, and 2 feet
Is this a triangular table a right triangle?
Answers
Answer:
The answer to your problem is, D. Yes, because 2 + 3 = 5.
Step-by-step explanation:
Refer to the converse of the pythagorean theorem. We need to have both sides equal to each other to have a right triangle.
So we need to have:
\(a^{2} + b^{2} = c^{2}\)
We would need to fill out the problem and replace A, B, and C. Which leads to either being B or D
The longest side is the hypotenuse and the value of c.
Thus the answer to our problem is, D. Yes, because 2 + 3 = 5
PLEASE HELP FAST 75 POINT.
evaluate: 71.5 times (-9.2)A. –657.8 B. –65.78 C. 65.78 D. 657.8.
Answers
Answer:
the answer is A.-657.8
Step-by-step explanation:
because a positive times a negative will always equal a negative.
Answer: b
Step-by-step explanation:
i need help with this question please help me
Answers
Answer:
The answer is D.
Step-by-step explanation:
y = mx + b
C = 5/9 (F - 32)
C = 5/9F - 5/9 (32)
Option (D) is correct.
What is Integers? Can you explain it?
Answers
Answer: integers are: -5, 1, 5, 8, 97, and 3,043
Step-by-step explanation: any number such as negatives and positive, as long as its a whole number.
Any whole number is an integer.
Ex. -5, 3, 1, etc.
i need help with this problems
Answers
Answer:
Step-by-step explanation:
y = mx + b
0 = 300,10 + 240 =550
slope 2
.........................................................
screenshot 1: question
screenshot 2: answer options
thx
Answers
Answer:
A/m=-2. since x goes up by 2 on the table, y decreases by 4 on the table, but if the next part of x on the table was 6, then y would be -2.
need help with this fast!!!!
Answers
Answer:
the second one
Step-by-step explanation:
B
Explanation:
find the circumference of both circle
Answers
Answer:
Blue Circle: 69.11504
Green Circle: 138.2301
Step-by-step explanation:
Blue Circle:
Circumference = 2 (Pi) R
C = 2 (3.14) 11
C = 69.11504
Green Circle:
Circumference = 2 (Pi) R
C = 2 (3.14) 22
C = 138.2301
Hope this helps!
Plz mark Brainliest!!!
Answer:
Green circle: 138.16
Blue circle: 69.08
Step-by-step explanation:
Formula for circumference: 2πR
π ≈ 3.14
Green circle:
Radius: 22
Apply formula:
2 * 3.14 * 22 = 138.16
Blue circle:
Radius: Half of the radius of the big one, 11
Apply the formula once more:
2 * 3.14 * 11 = 69.08
PLEASE HELP ME ASAP I need to know if ALL of these are right if not what is the right answer
Answers
Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.
What is the mean number of minutes spent on the phone?
Answers
Explanation:
The data from the stem-and-leaf plot is:
10,
24,25,26,
30,30,32,33,
40,45,46
Add up those values
10+24+25+26+30+30+32+33+40+45+46 = 341
Then divide over n = 11 which is the sample size.
341/11 = 31 is the arithmetic mean.
Answer:
341/11 = 31 is the arithmetic mean.
Step-by-step explanation:
The table below shows the total number of text messages that brad sent over 4 days.
Answers
a)M=×50
b)30=1500
Step-by-step explanation:
30×50
=1500
B. 30 = 1500
Solve for x to the nearest tenth.
Answers
The results of a survey show that 40% of 300 students chose conserving natural resources as the top priority for their generation. How many students chose conserving natural resources. Make a model to find the answer.
Answers
Answer:
120
Step-by-step explanation:
multiply the first number together
4 x3 = 12 plus a 0 because it’s 300
Answer:
The answer is 120
PLEASE HELP ME!!!!!!!!!!!!!!
Answers
Answer:
9
Step-by-step explanation:
triangle is a right angle triangle, using pythagoras theorem
15^2 − 12^2 = 81
\(\sqrt{81} =9\)
First person is right
Answer:
9
Step-by-step explanation:
triangle is a right angle triangle, using Pythagoras theorem
15^2 − 12^2 = 81
Square root of 81 is 9
Rocco is making goat food cups to be sold in a petting zoo. He has 8 apples, which is only of what he needs to make enough food cups for the morning visitors. How many apples does Rocco need?
10 apples
14 apples
16 apples
12 apples
Answers
BRAINLIEST FOR CORRECT ANSWER
Figure ABCD is transformed to figure A prime B prime C prime D prime, as shown in the attached image:
Which of the following sequences of transformations is used to obtain figure A prime B prime C prime D prime from figure ABCD?
1. Reflection over the x-axis followed by a translation to the right by 5 units
2. Reflection over the y-axis followed by a translation down by 5 units
3. Counterclockwise rotation by 180 degrees about the origin followed by a translation to the right by 5 units
4. Counterclockwise rotation by 180 degrees about the origin followed by a translation down by 5 units
Answers
Answer:
I believe the correct is 4) Counterclockwise rotation by 180 degrees about the origin followed by a translation down by 5 units
Step-by-step explanation:
I believe I am correct, but I am not 100% sure. If I'm wrong, I apologize.
Word Problems (WITH EXPLANATION)
In the rectangle below, the line MN cuts the rectangle into two regions. Find x, the length of segment NB, so that the area of the quadrilateral MNBC is 40% of the total area of the rectangle.
Answers
The length of segment NB is 0.833
Finding x, the length of segment NBFrom the question, we have the following parameters that can be used in our computation:
The rectangle
The area of the rectangle is
Area = (20 + x) * 10
The area of MNBC is
Area = 1/2 * 10 * (x + 20 + x - 5)
Area = 5(2x + 15 )
The area of the quadrilateral MNBC is 40% of the total area of the rectangle
So, we have
5(2x + 15) = 40% * (20 + x) * 10
5(2x + 15) = 4* (20 + x)
When evaluated, we have
x = 0.833
Read more about area at
https://brainly.com/question/31752704
#SPJ1
Answer:
X=1
Step-by-step explanation:
The total area of the rectangle is 20x10=200
so the area of MNBC is: 40%x200=80
MC= 20-5=15
so (x+15).10/2=80 (according to the trapezoidal area formula)
x=1
so the answer is 1
To learn more about the Trapezoidal area formula
https://brainly.com/question/31395425?referrer=searchResults
If xx and y vary directly and y is 21 when x is 7, find y when x is 5
Answers
Answer:
y = 15
Step-by-step explanation:
We need to solve for k
y = x
21 = 7k Divide both sides by 7 to solve for k
3 = k
y = xk
y = 5(3)
y = 15
Answer: y = 15
Step-by-step explanation:
First, 42 was divided by some number. the resulting quotient was then multiplied by 5. following this, 12 was subtracted from the product, giving 58. what was the initial divisor?
please show work and answer.
Answers
Answer:
42 ÷3 =14 × 5 = 70 -12 = 58
Step-by-step explanation:
the initial divisor was 3
Answer:
3
Step-by-step explanation:
42 divided by 3 = 14
14 x 5 = 70
70 - 12 = 58
Hello! I need help on a assignment quick! It is about transversals of parallel lines: solve for x and name angle pairs. If you could help it would be amazing! Thank you!
Answers
Answer:
x = 6
MON = 102
adjacent angle UTQ and UTV
Step-by-step explanation:
Use parallel line alternate angle rule
JNO = MON
12x + 30 = 9x + 48
12x - 9x = 48 - 30
3x = 18
x = 18/3 = 6
MON = 9x + 48 = 9(6) + 48 = 54 + 48 = 102
Plz help: what is the probability?
Rolling a number that is less than three 5 times in a row on a number cube labeled 1 through 6
Answers
Answer:
whats the options
Answer:
well to me it would be a half and half deal so you might and you might not..
Step-by-step explanation: