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Zolol [24]
3 years ago
15

Please show you're work! Thanks! Will give brainy

Mathematics
1 answer:
ella [17]3 years ago
5 0

Answer:

see below

Step-by-step explanation:

y = x²-8x+ 15

Let x = -2

y = (-2)²-8(-2)+ 15

  = 4 +16 +15

   = 35

Let x = 1

y = (1)²-8(1)+ 15

     1 -8+15

   =8

The vertex is (4,-1)

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What is the solution of StartRoot x + 12 EndRoot = x?
Ber [7]

Answer:

x = 4      or x = -3

Step-by-step explanation:

\sqrt{x+12}=x

Take square both the sides,

(\sqrt{x+12})^{2}=x^{2}\\\\x+12=x^{2}

x² - x - 12 = 0

x² - 4x + 3x - 3*4 =0

x*(x - 4) + 3*(x - 4)= 0

(x- 4 )(x+3) =0

x -4 =0   or x + 3 = 0

x = 4      or x = -3

4 0
3 years ago
Read 2 more answers
I would enjoy a brief explanation for each one thank you!☺️
Ghella [55]

Step-by-step explanation:

1. 4 3/4=19/4

53/2=13/2

the total change of square will be. 19/4 + 13/2= 19+26/4=45/4

2. total change is 0.7+0.4=1.1

3.-7 1/6= -43/6

3 5/6= 23/6

-43/6 + 23/6 =-20/6 = -10/3

4. metals=2.625(m)

paper=5.58(p)

glass= x

total = 9.5(t)

m + p + x = t

2.625 + 5.58 + x =9.5

8.205 + x = 9.5

x = 9.5 - 8.205

x = 1.295

Hope That Helped

6 0
3 years ago
D − 37 = 40<br> D = <br> Check your solution.<br> − 37 = 40
WARRIOR [948]
The answer is D= 77, 77-37=40
8 0
2 years ago
Read 2 more answers
Part F
olya-2409 [2.1K]

Answer:

Sorry, Bub. I have no idea what type of Graph tool you are supposed to be using. Therefore I cannot tell you how to use it.

The picture I made for the other question uses an online graphing calculator called "Desmos"dot"com"

Step-by-step explanation:

7 0
3 years ago
WHO WANT TO DOYHIS FOR 89 POINTS...ASAP!!!PLEASEEEASAP!!
hoa [83]

Answer:

Step-by-step explanation:

A)1st pair: ∠HKJ ,∠JKG     2nd pair: ∠HKE,∠EKF

B)Verticle angle:∠HKE and ∠GKF

C) 4x+5+41=180

  4x+46=180

  4x=134

x=33.5

D)4x+36=90

   4x=90-36

  4x=54

  x=13.5

E) x+x-4=180

2x=184

x=92

 

5 0
3 years ago
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