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Aleksandr [31]
3 years ago
8

Identify the vertex for y=2x square -4x-2

Mathematics
1 answer:
Art [367]3 years ago
5 0

Answer:   y=2x,−4x−2

Step-by-step explanation:

Simplify both sides of the equation. that the answer above

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Please help me with precal
Doss [256]

Consider the function f(x)=\sqrt{x}. This function has:

  • the domain x\in [0,\infty);
  • the range y\in [0,\infty).

If the domain of unknown function is [a,\infty), then x\ge a or x-a\ge 0. This means that you have \sqrt{x-a} as a part of needed function.

If the range of unknown function is [b,\infty), then y\ge b. This means that you have to translate function b units up and then the expression of the function is

y=\sqrt{x-a}+b.

Answer: correct choice is B.

6 0
2 years ago
What is the value of the expression?<br> 8 1/2-2+4 3/4
kodGreya [7K]
11 1/4 or 11.25 is the answer
7 0
3 years ago
Water has a specific heat of 4.184 J/g°C and requires 23,000 J of heat to raise the
nasty-shy [4]

Answer:

m=80.840 kg

Step-by-step explanation:

Given Data,

Q=23000 J

c=4.184 J/g °c

Δt= 68 °c

m=?

By using this equation,

Q=mcΔt

23000=m\times 4.184\times 68\\\\m=\frac{23000}{4.184\times68} \\\\\\m=80.840 kg

3 0
2 years ago
I need help with this question please
nasty-shy [4]

Answer:

YES

Step-by-step explanation:

First, let's find the total number of seats int he airplane.

14 + 64 + 4 * 108 = 510

The airplane has a total or 510 seats.

Half of the number of seats is 510/2 = 255.

Now let's calculate the number of seats being used and compare with 255.

5/7 * 14 + 5/16 * 64 + 5/9 * 4 * 108 =

= 2 * 5 + 4 * 5 + 12 * 4 * 5

= 10 + 20 + 240

= 270

270 seats are being used.

270 is greater than 255, so more than half of the seats are being used.

Answer: YES

7 0
3 years ago
Eight times the sum of a number and 9 equals 7.
Dominik [7]

Answer:

8(x+9)=7

comment if you need anything else like solving for x

8 0
2 years ago
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