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Julli [10]
3 years ago
15

Jeremy wants to verify that the transformation shown is a dilation. He finds the lengths of segments QA and AD to be 4 units.

Mathematics
2 answers:
kirill [66]3 years ago
7 0
From the figure, the dilation constant from ΔABC to ΔDEF is
QD/QA = 8/4 = 2

Test QB = QE:
We should have
QB = (1/2) QE
The statement is incorrect.

Test QC = CF:
We should have
QC = (1/2) QF, or QC = CF
The statement is correct.

Test DE = 2AB:
We should have
AB = (1/2)DE, or 2AB = DE.
The statement is correct.

Test AC = EF:
We should have
AC = (1/2)DF
The statement is incorrect.

We should also have
BC = (1/2)EF
Therefore, if BC = 2.25, then
EF = 2*BC = 2*2.25 = 4.5.

Answer:
QC = CF
DE = 2AB
EF = 4.50
natima [27]3 years ago
5 0

if you guys are testing on edg. the correct answer r A,B, and C

just in case

QB =  QE

QC = CF

DE = 2AB

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FOR MANY POINTSish
dangina [55]

x will represent the first unknow number

6x will represent the second number

the two numbers together will equal 21

6x + x = 21  combine like terms

7x =21  divide both sides by 7

x =3


Hope that helps.

brainliest is always appreciated.

4 0
3 years ago
A lion paced up and down the ridge 10 times. The ridge is 5 ft. 3 in. long. How far did the lion travel? (12 in.=1 ft.)​
Setler79 [48]

Answer:

105 ft.

Step-by-step explanation:

5 x 12 = 60

So 5 feet is 60 inches.

60 + 3 = 63

That makes the ridge 63 inches long.

When the lion went up the ridge, it traveled 63 inches.

When the lion went back down the ridge, it traveled another 63 inches, totaling 126 inches.

The lion did this 10 times.

126 x 10 = 1260

Divide 1260 by 12 to find the measurement in feet.

1260 ÷ 12 = 105

7 0
3 years ago
1 liter is equal to how many cubic centimeters?​
Alika [10]

Answer:

1000

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
does somebody knows how to do this one?
vlada-n [284]

Answer:

Step-by-step explanation:

To find the area subtract the area of the semicircle from the area of the rectangle.

Although the line isn’t there, if you imagine there is one, then you will see that you form a rectangle which is the same line as the semicircle’s diameter.

The area of rectangle is:

⇒ A = lw

⇒ A = (14)(8)

⇒ A = 112cm^{2}

The area of the semicircle;

⇒ A = \frac{1}{2}\pi r^{2}

⇒ A = \frac{1}{2}\pi (7)^{2}

*Note here that the radius is half the diameter, so it is 7cm, not 14cm

⇒ A = 76.97cm^{2}

Finally subtract the two areas;

⇒ A = 112 - 76.97

⇒ A = 35.03cm^{2}

6 0
2 years ago
Find the slope of the line that passes through (5,9) and (3,9)
pshichka [43]

Answer:

Since the Y coordinate is constantly 9, it is a horizontal line.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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