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3 years ago

I need help with this for math,

Mathematics

1 answer:

liraira [26]3 years ago

4 0

4. por.
5. non.
6. por.
7. non.
i hope they all right.

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Find the coordinates of triangle ABC A(2,1) B(3,0) C(1,-2) after a dilation with a scale factor of 3

Bad White [126]

Answer:

Remember the key word”factor” which means to multiply. Multiple all those numbers by 3!

Step-by-step explanation:I’m going to do 2 of them and you can do the last one (2,1)x3= the dilation (6,3). (3,0)x 3 gives the dilation (9,0). (1,-2)x3 gives the dilation of (3,-6). See it’s very easy.

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3 years ago

If a train travels from Milwaukee to Minneapolis a distance of 337 miles in 5 hours how fast is the train travelling? Write

yawa3891 [41]

Answer:

67.4 mph

distance~337

rate~67.4 mph

time~5 hours

Step-by-step explanation:

hope this helps

7 0

3 years ago

Select the three expressions that are equivalent to 8n - 16m

il63 [147K]

First one, third one and the last one. Hope this helps

6 0

3 years ago

Read 2 more answers

13. If 6 times the 6th term of an A.P. is equal to

romanna [79]

Answer:

see explanation

Step-by-step explanation:

The n th term of an AP is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given

6(a₁ + 5d) = 13(a₁ + 12d) ← distribute parenthesis on both sides

6a₁ + 30d = 13a₁ + 156d ( subtract 13a₁ from both sides )

- 7a₁ + 30d = 156d ( subtract 30d from both sides )

- 7a₁ = 126d ( divide both sides by - 7 )

a₁ = - 18d

Now

a₁₉ = a₁ + 18d = - 18d + 18d = 0 ← as required

7 0

3 years ago

What are the solutions of the equation (x+2)^2-2(x+2)-15=0

Nina [5.8K]

Answer:

The solutions to this are x = -5, and x = 3.

Step-by-step explanation:

This can be solved by rearranging the equation into a proper quadratic format, and factoring it:

$(x + 2)^2 - 2 (x + 2) - 15 = 0\\x^2 + 4x + 4 - 2x - 4 - 15 = 0\\x^2 + 2x - 15 = 0\\(x + 5)(x - 3) = 0$

This tells us that the x can be equal to -5 or 3.

8 0

3 years ago