2 years ago

X^2+(x-8)^2-3(x+2) = 2(x+9)

Mathematics

1 answer:

Yuki888 [10]2 years ago

8 0

Answer:

There are two solutions:

x = 5/2 = 2.500

x = 8

Step-by-step explanation:

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Find vertex of: y=(x-4)(x+8)

ki77a [65]

Answer:

(-2,-36)

Step-by-step explanation:

$y=(x-4)(x+8)$

1) Find the zeros of the parabola

The zero-product property states that any value, when multiplied by 0 will equal 0. Therefore, to make y=0, either (x-4)=0 OR (x+8)=0.

Therefore, x=4 and x=-8.

2) Find the x-coordinate of the vertex

To do this, we take the average of our zeros.

$\frac{4+(-8)}{2} \\=\frac{-4}{2} \\=-2$

Therefore, the x-coordinate of the vertex is -2.

3) Find the y-coordinate of the vertex

Plug the x-coordinate back into the original equation

$y=(-2-4)(-2+8)\\y=(-6)(6)\\y=-36$

Therefore, the y-coordinate of the vertex is -36.

Therefore, the vertex of the parabola is (-2,-36).

I hope this helps!

6 0

2 years ago

who won the tournament? both teams, they ______________________ for first place. a. tie b. tied c. are tying d. had tied e. won

shutvik [7]

I feel that (a) is the right answer because both teams tie the tournament.

8 0

2 years ago

Frankie and Gus swam for 10 minutes. When the time was up, Frankie had completed 10 7/10 tags and Gus had completed 10 4/5 laps.

telo118 [61]

Answer:

Step-by-step explanation:

10 4/5 = 10.8

10 7/10 = 10.7

Frankie did not swim the longest distance.

Gus did.

10.8>10.7

7 0

2 years ago

Order the numbers by value. LEAST to GREATEST 10 √99 √75 9 9.5

beks73 [17]

Answer:

√75, 9, 9.5, √99, 10

Step-by-step explanation:

that's what I got

4 0

2 years ago

12 + x/4 = 9 Simplify Plz need ASAP

agasfer [191]

Answer: X = -12

Step-by-step explanation: 1) 12 + x/4 = 9

2) 12 + x/ 2^2 = 9

3) x/ 2^2 + 12 = 9

6 0

2 years ago