2 years ago

What is the vertex of the equation y = (x - 3)2 + 7?

Mathematics

1 answer:

jeka57 [31]2 years ago

6 0

Answer:

(3,7)

Step-by-step explanation:

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-2x+8x=20 ans can you please include the steps. Thank you

sladkih [1.3K]

Hope this helps :).

3 0

3 years ago

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—7times(—8) help plz

BabaBlast [244]

Answer:

Step-by-step explanation:

A negative times a negative makes a positive, so:

$-7*(-8)=56$

8 0

2 years ago

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What is the value of x?

Nikolay [14]

Answer:

5 units (you are right!)

Step-by-step explanation:

The triangles ABD and BCD are similar.

Therefore,

$\frac{x}{10}=\frac{10}{4x} \\4x^{2}=100\\x^{2}=25\\x=5$

I hope this helped!

6 0

2 years ago

A cost of a pair of football boots have been decreased from £70 to £52.50, what was the percentage change?

alisha [4.7K]

I think it’s 25%

Because 70 divided by 10 is 7
Which is then 10% so 20% is 14 then 5% is half of 7 which is 3.5
So 70 -7-7-3.5=52.5 which is 25%

4 0

2 years ago

Wiat number should be added to both sides of the equation to complete the square? X^2+x=11

Ivahew [28]

Answer:

add 1/4 to each side

Step-by-step explanation:

x^2+x=11

We take the coefficient of the x term

Then divide it by 2

1/2

Then square it

(1/2) ^2 = 1/4

Add this to both sides of the equation

x^2 + x + 1/4 = 11+1/4

(x+1/2)^2 = 11 1/4

7 0

3 years ago

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