2 years ago

ΔDEF is a dilation of ΔABC.

Mathematics

1 answer:

leonid [27]2 years ago

3 0

Answer:It is 8:)

Step-by-step explanation:

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What is the vertex of g(x) = 3x2 − 12x + 7? (−6, −5) (−2, −5) (2, −5) (6, −5)

34kurt

Answer:

(2, -5)

Step-by-step explanation:

Convert to vertex form:

3x^2 - 12x + 7

= 3(x^2 - 4x) + 7

Completing the square:

= 3[ (x - 2)^2 - 4)] + 7

= 3(x - 2)^2 - 12 + 7

= 3(x - 2)^2 - 5.

Comparing with the general form

a(x - b)^2 + c we see that the vertex is (b, c) = (2, -5).

4 0

2 years ago

Evaluate the expression solve for k = -3.4 write answer as a decimal or whole number 7k/10

Sauron [17]

-2.38 is the answer because 7x-3.4=x/10=-2.38

6 0

3 years ago

Number 7 ;( I wish I was good at math

Setler79 [48]

It’s ok I will try to figure out an answer

8 0

3 years ago

Tommy had a rectangular strip of paper that is 21 cm long. If he cuts it into smaller pieces, each 2 1/3 cm long, how many piece

abruzzese [7]

Answer:

The answer is 9.

Explanation: 21÷ 2 1/3= 9

7 0

2 years ago

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Find the distance between the points (-5, 0) and (-4, 1).

choli [55]

The formula of a distance between two points A and B is :

$AB=\sqrt{(x_{B}- x_{A})^2 +( y_{B}- y_{A})^2 }$

You should this formula by heart.

Then, you just have to apply it ! :D

Here :

$x_{A}=-5$
$y_{A} =0$

$x_{B} =-4$
$y_{B}= 1$

Therefore :

$\sqrt{(-4-(-5))^2+(1-0)^2}$
$= \sqrt{1^2+1^2}$
$= \sqrt{1+1}$
$= \sqrt{2}$

In short, the answer would be the first option : $\sqrt{2}$ .

Hope this helps !

Photon

6 0

3 years ago

Read 2 more answers