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xxTIMURxx [149]
2 years ago
13

I need help with these problems please

Mathematics
1 answer:
katovenus [111]2 years ago
8 0

Answer:

1. Reflection

2. Dilation

3. Rotation

Step-by-step explanation:

Hey!

You can tell number one is a reflection because it didn’t change side or turn upside down or anything, it just flipped over to the other side.

You can tell number two is a dilation because it changes size.

You can tell number three is rotation because it rotated.

Hope this helps! :D

If you have any further questions, comment down below!

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You have $4.10 in nickels, dimes, and quarters. If you have twice as many dimes as quarters, and five more nickels than dimes, h
lutik1710 [3]

For this case, the first thing to do is define variables.

We have then:

  • <em>x: number of nickels </em>
  • <em>y: number of dimes </em>
  • <em>z: number of quarters </em>

We write now the system of equations:

0.05x + 0.1y + 0.25z = 4.10\\y = 2z\\x = y + 5

Then rewriting the equations we have:

0.05 (2z + 5) + 0.1 (2z) + 0.25z = 4.1\\0.05 (2z + 5) + 0.1 (2z) + 0.25z = 4.1\\0.1z + 0.25 + 0.2z + 0.25z = 4.1\\0.55z = 4.1-0.25

z = \frac {3.85} {0.55}\\z = 7

Then, substituting values we have:

y = 2 (7)\\y = 14

Finally:

x = 14 + 5\\x = 19

Answer:

19 nickels

14 dimes

7 quarters

6 0
3 years ago
The average number of employees that call in sick for the day over the course of a year is 25. The number of employees that call
morpeh [17]

Answer:

sample mean (x with the bar on top) =24

Step-by-step explanation:

Take the mean of all the number of employees but divide by the number of days size: (25+10+16...)/12=25

population mean (mu) =11.52

The same goes for the other one but divide by the population which is 25

4 0
3 years ago
What is the area of a rectangular garden that is 60 feet by 20 feet
levacccp [35]
Area = length * width

A = 60 * 20

A = 120 square feet
7 0
3 years ago
Can someone answer B please???
lbvjy [14]
A)

150 were surveyed, possible outcomes, and 132 said they prefer dogs, favorable outcomes,   132/150 or 22/25 or 0.88, now 0.88 * 100 is just 88, namely 88% is the probability.

b)

since we know is 88%, what is 88% of 100?  (88/100) * 100, 0.88 * 100, or just 88 students.

c)

18/150 or 3/25 or 0.12 namely 12%,

what's 12% of 300?  (12/100) * 300, or 0.12 * 300, so just 36 students.
8 0
3 years ago
HelPPPPP PLSSSSSSSSSSSSSSSSSSSSSSSS page 109 :((((((((((((((((((( ty!&lt;333
gavmur [86]

Answer:

1. 1/4+1/4=2/4=1/2

2. Yes

3. i don't know

4. Yes

Step-by-step explanation:

1. 1+1=2 therefore you get 2/4 or 1/2

2. 2/3 is the reduced form of 4/6

3. i honestly dont know

4. 3/4 is the reduced form of 9/12

5 0
2 years ago
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