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Sveta_85 [38]
3 years ago
14

12)

Mathematics
1 answer:
Rina8888 [55]3 years ago
8 0

Answer:

-0.55-0.05

Step-by-step explanation:

When you solve (0.25-0.3)-(0.8-0.25), you get -0.6. -0.55-0.05= -0.6

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PLEASE HELP ME!!!!! A quadrilateral with vertices (0,0), (4,0), (3,2), (1,1) is mapped to a quadrilateral with vertices (6,3).(-
Murljashka [212]

Answer:

( 2,1) is the center of dilation and -2 is the scale factor

Step-by-step explanation:

We can use the formula

A' = k( x-a) +a, k( y-b)+b  where ( a,b) is the center of dilation and k is the scale factor

(0,0) becomes (6,3)

( 6,3) =  k( 0-a) +a, k( 0-b)+b

6 = -ka+a

3 = -kb+b

We also have

(4,0) becomes (-2,3)

( -2,3) =  k( 4-a) +a, k( 0-b)+b

-2 =4k -ka+a

3 = -kb+b

Using these two equations

6 = -ka+a

-2 =4k -ka+a

Subtracting the top from the bottom

-2 =4k -ka+a

-6 = ka -a

-------------------

-8 = 4k

Divide by 4

-8/4 = 4k/4

-2 = k

Now solving for a

6 = -ka +a

6 = - (-2)a +a

6 = 2a+a

6 = 3a

Divide by 3

6/3 =3a/3

2=a

Now finding b

3 = -kb+b

3 = -(-2)b+b

3 = 2b+b

3 = 3b

b=1

6 0
3 years ago
Read 2 more answers
THe product of three numbers is 3150. Two of the number are 14 and 15. Find the third number
Sholpan [36]

Answer:

15

Step-by-step explanation:

Let's call the mystery number x.

14\cdot 15\cdot x=3150 \\\\210x=3150 \\\\x=3150/210=15

Hope this helps!

4 0
3 years ago
Read 2 more answers
How many solutions does the system have? Y=-2x-4 y=3x+3
Fudgin [204]

Answer:

1

Step-by-step explanation:

Since they are not parallel nor the same line, they have 1 intersecting point, which is the solution.

If they were parallel, they would have no solution.

If they were the same line, they would have infinite solutions.

5 0
3 years ago
Find and compare the median and
Over [174]

Answer:

Median= $2.45/2

=$1.225

Mode= $2.87

3 0
3 years ago
Solve the equation. PLS
pochemuha

Answer:

n= 26, so the answer would be 'B'.

Step-by-step explanation:

n-8=18

n=18+8

n=26

4 0
3 years ago
Read 2 more answers
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