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Ymorist [56]
3 years ago
5

What is the scale factor in the following dilation the smaller triangle is the pre image

Mathematics
1 answer:
Rasek [7]3 years ago
6 0

Answer:

the scale factor is 3 (a)

Step-by-step explanation:

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Calculation without distribution
Viefleur [7K]

Answer:

$2.69

Step-by-step explanation:

The prices of the 3 books are:

$2.50, $4.95, $6

The total is $2.50 + $4.95 + $6 = $13.45

The sale is 20% off.

20% of $13.45 =

= 0.2 * $13.45

= $2.69

Answer: You will save $2.69.

7 0
3 years ago
An amusement park has 11 roller coasters. In how many ways can you choose 4 of the roller coasters to ride during your visit to
Vadim26 [7]
4!=4*3*2*1=24
11!=11*10*9*8*7*6*5*4*3*2*1=39916800
7!=7*6*5*4*3*2*1=5040
n choose k
how many ways are there to choose k rollercoasters from n choices?

\left(\begin{array}{ccc}n\\k\end{array}\right)=\frac{n!}{k!(n-k)!}

\left(\begin{array}{ccc}11\\4\end{array}\right)=\frac{11!}{4!(11-4)!}=\frac{39916800}{24(7)!}=\frac{39916800}{24(5040)}=\frac{39916800}{120960}=330



330 ways






6 0
4 years ago
Please show our work.... I am not good at percentages
lozanna [386]
In terms of percentage she would have got 75% correct
3 0
3 years ago
Read 2 more answers
ABCD and JKLM are similar rectangles. What is the perimeter of JKLM?
pogonyaev
SCale factor is ML/DC = 6/4 = 3/2

So multiply AD by 3/2 to find the length of JM . The length would be 3*3/2=9/2

Next find the perimeter of JKML. It would be 2(9/2+6)=21
7 0
3 years ago
What is the area of the trapezoid shown?
Rainbow [258]
BC is 6.08, use distance formula to calculate
height is BE and also 6.08
AD is 18.25
A= h((a+b)/2)
=6.08(6.08+18.25)/2)
= 73.96 units^2 is the area
6 0
3 years ago
Read 2 more answers
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