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arsen [322]
3 years ago
11

Can someone pls help me!! :((

Mathematics
2 answers:
Papessa [141]3 years ago
5 0

Answer:

Whats the question so that I can help?

Step-by-step explanation:

atroni [7]3 years ago
5 0
We need the question so that we can answer it please
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PLEASE HELP<br> find the vertex of f(x)=x^2+2x+3 (make sure you show your work)
kotegsom [21]

Answer:

(- 1, 2)

Step-by-step explanation:

Given a quadratic in standard form y = ax² + bx + c : a ≠ 0

Then the x- coordinate of the vertex is

x_{vertex} = - \frac{b}{2a}

f(x) = x² + 2x + 3 ← is in standard form

with a = 1 and b = 2, hence

x_{vertex} = - \frac{2}{2} = - 1

Substitute x = - 1 into f(x) for corresponding value of y

f(- 1) = (- 1)² + 2(- 1) + 3 = 1 - 2 + 3 = 2

vertex = (- 1, 2 )

4 0
3 years ago
11. For each table Ariella waits on at a restaurant, she is paid $4.00 plus 18% of the
lisabon 2012 [21]

Answer:

m=0.18b+4

She'll earn $10.30

Step-by-step explanation:

m=0.18b+4

m=0.18(35)+4

m=6.3+4

m=10.3

5 0
3 years ago
Two positive consecutive numbers are represented by x and x+1. If four is added to the first
Naya [18.7K]

Step-by-step explanation:

<h3> new numbers are x+4 and x-1</h3>

so, x+4/x-1=11/16

16x+64=11x-11

16x-11x=-11-64

5x=-75

x = -15

also, x+1 = -14

8 0
3 years ago
Read 2 more answers
Four different paints are advertised as having the same drying time. To check the manufacturer's claims, five samples were teste
iogann1982 [59]

Answer:

Explained below.

Step-by-step explanation:

The data provided is for the dying time of four different types of paint.

One-way ANOVA can be used to determine whether all the four paints have the same drying time.

Use Excel to perform the one-way ANOVA.

Go to Data → Data Analysis → Anova: Single Factor

A dialog box will open.

Select the data.

Select "Grouping" as Columns.

Press OK.

The output is attached below.

The required values are as follows:

(1)

Sum of Squares of Treatment (Between Subjects):

SST = 330

(2)

Sum of Squares of Error (Within Subjects):

SSE = 692

(3)

Mean Squares Treatment (Between Subjects):

MST = 110

(4)

Mean Squares Error (Within Subjects):

MSE = 43.25

6 0
3 years ago
Jordan bikes at a speed of 8 2/3 mph. How many miles will he bike in: 3 hours and 6 minutes
Blababa [14]

Answer:

just look it up lol

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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