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myrzilka [38]
4 years ago
12

If y=x^2+2x+3 find the falue of Y when x=3

Mathematics
2 answers:
yarga [219]4 years ago
5 0
Y=18 is the correct answer
dmitriy555 [2]4 years ago
4 0
If y=x^2+2x+3 when x=3 then y=........

Plug in 3 where x is stated.
Work:

y=(3)^2+2(3)+3
y=9+2(3)+3
y=9+6+3
y=18

Answer: 18
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There are 5 subjects each school day. Each subject is 45 minutes long. Lunch and recess are 35 minutes long. How long is the sch
timofeeve [1]

Answer:

4 hours and 33 minutes

Step-by-step explanation:

Before I answer, I was confused if recess and lunch are 35 minutes in total or 35 minutes each. My answer is if they are 35 minutes combined. If that's wrong, you can just add 35 minutes to my answer.

5*45 = 225

225+35 = 260 minutes or 4 hours and 33 minutes

3 0
2 years ago
Use the expression (8x + 2) + (-9x + 7)
sasho [114]
Combine like terms, you would get -1+9 which your answer would be 8
7 0
3 years ago
Find the equation of the line
amm1812

Answer:

y = 2x - 7

Step-by-step explanation:

The question is asking for slope-intercept form, y = mx + a.

Given:

(1, -5) and (9, 11)

Find the slope (m) between the two points:

m = (y2 - y1) / (x2 - x1)

x1 = 1

x2 = 9

y1 = -5

y2 = 11

m = ( 11 - (-5) )/(9 - 1)

= 16/8

m = 2

y = 2x + a

Use one of the two points to find a (I will use (1, -5)):

-5 = 2(1) + a

-5 = 2 + a

-7 = a

a = -7

y = 2x + (-7)

y = 2x - 7

7 0
3 years ago
What is the midline of the function?<br> A. Y=0<br> B. Y=2<br> C. Y=1<br> D. Y=4pi
navik [9.2K]

Answer:

C

Step-by-step explanation:

The trig equation

a \sin(bx)  + d

where d represent the midline.

D is represented by positive 1 so y=1 is the midline.

4 0
3 years ago
Need help with statistics please answer!
Crazy boy [7]

Answer:

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7 0
3 years ago
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