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3 years ago

F(x)=x^2+4x-2 what is the vertex

Mathematics

2 answers:

Eduardwww [97]3 years ago

6 0

Answer:(-2,-6)

Step-by-step explanation:Put it in a graph and it should be the dot in the direct middle

satela [25.4K]3 years ago

3 0

Answer:

f(x)= (x+2)^2-6

Step-by-step explanation:

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In a school election, Juan received 4 times as many votes as Wayne, Neal recurved twenty less votes than Juan, and Kerry got hal

77julia77 [94]

Votes received by Wayne is 112

Solution:

To find: votes received by Wayne

Let the vote received by Wayne be "x"

Juan received 4 times as many votes as Wayne

Therefore,

Juan votes = 4 times as many votes as Wayne

Juan votes = 4x ---- eqn 1

Neal received twenty less votes than Juan

Neal votes = twenty less votes than Juan

Neal votes = Juan votes - 20

Neal votes = 4x - 20 ---- eqn 2

Kerry got half as many votes as Neal

Kerry votes = half of neal votes

Kerry votes = $\frac{4x - 20}{2}$ ---- eqn 3

The total votes cast in the election was 1,202

Wayne votes + Juan votes + Neal votes + Kerry votes = 1202

Plug in eqn 1 , eqn 2, eqn 3

$x + 4x + 4x - 20 + \frac{(4x - 20)}{2} = 1202\\\\2x + 8x + 8x - 40 + 4x - 20 = 1202 \times 2\\\\22x - 60 = 2404\\\\22x = 2404 + 60\\\\22x = 2464\\\\x = 112$

Therefore votes received by Wayne is 112

4 0

3 years ago

The scale of a map is 1 in. = mi. Find each length on the map

WITCHER [35]

The question gives the relationship to be

$1in=21mi$

We will interpolate to solve the question.

First Question: 147 mi

$\begin{gathered} \text{If 1 in = 21 mi} \\ x\text{ in = 147 mi} \end{gathered}$

Cross multiplying,

$undefined$

7 0

1 year ago

What is the value of x?

Inessa05 [86]

3x-14=4x-9
-4x -4x
-x-14=-9
-14 -14
-x=-15
-x/-1=-15/-1
x=15
Sorry if this is a bit confusing, but I hope I helped

5 0

3 years ago

What is the solution for log z + 12 = 9? A: 000.1 B: -1,000 C: -0.001 D: 1,000

Ivahew [28]

Answer:

z + 12 = 9

Reorder the terms:

12 + z = 9

Solving

12 + z = 9

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '-12' to each side of the equation.

12 + -12 + z = 9 + -12

Combine like terms: 12 + -12 = 0

0 + z = 9 + -12

z = 9 + -12

Combine like terms: 9 + -12 = -3

z = -3

Simplifying

z = -3

Step-by-step explanation:

8 0

3 years ago

You see, I can be myself now finally

DaniilM [7]

The song is 'Hey, Soul Sister' by Train. The next 29 words are:

I want the world to see you be, with me

Hey, soul sister

Ain't that Mr. Mister on the radio, stereo?

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3 years ago