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satela [25.4K]
3 years ago
15

> Section Exercises 1.4

Mathematics
1 answer:
Rom4ik [11]3 years ago
3 0

Answer:

2(45#?46698=468(4668)416684=!16684/1395

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The school chess team must raise mora than $300 to attend a regional chess competition. Complete the inequality below to represe
Irina18 [472]

Answer:

a > $300

Step-by-step explanation:

Note that

> means greater than

< means less than

≥ means greater than or equal to  

≤ less than or equal to  

for example : 2 < 3 means 2 is less than 3

3 >2 means 3 is greater than 2

the school must raise greater than $300 so the sign to be used is >

let the amount = a

a > $300

5 0
3 years ago
Y = 2x2-12x+25 write in vertex form and show work
nalin [4]

The vertex form of y = 2x² - 12x + 25 is y = 2(x - 3)² + 7

Step-by-step explanation:

The vertex form of a quadratic function is y = a(x - h)² + k, where

  • (h , k) are the coordinate of the vertex point
  • a is the leading coefficient (coefficient of x²)
  • If y = ax² + bx + c, then h=\frac{-b}{2a}
  • k = f(h) that means the value of y when x = h

∵ y = 2x² - 12x + 25

∵ y = ax² + bx + c

∴ a = 2 , b = -12 , c = 25

∵ h=\frac{-b}{2a}

∴ h=\frac{-(-12)}{2(2)}

∴ h=\frac{12}{4}

∴ h = 3

∵ k = f(h)

∴ k = f(3)

∵ y = 2x² - 12x + 25

- Substitute x by 3 to find k

∴ k = 2(3)² - 12(3) + 25

∴ k = 18 - 36 + 25

∴ k = 7

∵ The vertex form is y = a(x - h)² + k

∵ a = 2 , h = 3 , k = 7

∴ y = 2(x - 3)² + 7

The vertex form of y = 2x² - 12x + 25 is y = 2(x - 3)² + 7

Learn more:

You can learn more about the quadratic function in brainly.com/question/9390381

#LearnwithBrainly

3 0
4 years ago
If f(x)=4x-11 what is the value of f(5)
Ann [662]

Answer:

9

Step-by-step explanation:

Just place 5 where the x value is

4(5) - 11

20 - 11 = 9

6 0
3 years ago
Read 2 more answers
10x²+x-2= 1/2 (5x-2) h<br> solve for h
never [62]

Answer:

Step-by-step explanation:

10x²+x-2=1/2(5x-2)h

10x²+5x-4x-2=1/2(5x-2)h

5x(2x+1)-2(2x+1)=1/2(5x-2)h

2(2x+1)(5x-2)=(5x-2)h

h=[2(2x+1)(5x-2)]/(5x-2)

h=2(2x+1),5x-2≠0,x≠2/5

7 0
3 years ago
I know Im asking a lot but HELPPPP
Free_Kalibri [48]

Answer:

n=36-19

n=15

Step-by-step explanation:

:-)

4 0
3 years ago
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