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NISA [10]
3 years ago
5

Pls help (The ratio of fruit juice one)

Mathematics
1 answer:
Whitepunk [10]3 years ago
7 0
(x+35)/4.5=x/2.4 x=40
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What’s the vertex form of F(x)=x^2+2x-3
kupik [55]

Answer:

\large\boxed{f(x)=(x+1)^2-4}

Step-by-step explanation:

\text{The vertex form of a quadratic equation}\ f(x)=ax^2+bx+c:\\\\f(x)=a(x-h)^2+k\\\\(h,\ k)-\text{vertex}\\=====================================

\bold{METHOD\ 1:}\\\\\text{convert to the perfect square}\ (a+b)^2=a^2+2ab+b^2\qquad(*)\\\\f(x)=x^2+2x-3=\underbrace{x^2+2(x)(1)+1^2}_{(*)}-1^2-3\\\\f(x)=(x+1)^2-4\\==============================

\bold{METHOD\ 2:}\\\\\text{Use the formulas:}\ h=\dfrac{-b}{2a},\ k=f(k)\\\\f(x)=x^2+2x-3\to a=1,\ b=2,\ c=-3\\\\h=\dfrac{-2}{2(1)}=\dfrac{-2}{2}=-1\\\\k=f(-1)=(-1)^2+2(-1)-3=1-2-3=-4\\\\f(x)=(x-(-1))^2-4=(x+1)^2-4

4 0
3 years ago
Help me assapppp!!! Pls
mafiozo [28]

Answer:

have you tries adding them together?

5 0
3 years ago
Need help ASAP
madreJ [45]

Answer:

A 1/4

Step-by-step explanation:

2/3 x = 1/6

2x/3 = 1/6

2x/3 = 1/2x3

The answer  is 1/4

8 0
2 years ago
Read 2 more answers
The cost of renting a car is 55 a week plus.35 mile traveled during that week an equation to represent the cost would be y=55+0.
uysha [10]

Answer:

65 miles

Step-by-step explanation:

y=55+0.35x

77.75 = 55+0.35x

77.75 - 55 = 0.35x

22.75 = 0.35x

22.75 ÷ 0.35 = 0.35x ÷ 0.35

65 = x

x = 65

7 0
3 years ago
Read 2 more answers
Find the missing value for the exponential function represented by the table below.
Virty [35]
The common ratio of sequential values is 
   18.2/26 = 0.7

The missing value is
   12.74*0.7 = 8.918

The appropriate choice is ...
   d.  8.918
3 0
3 years ago
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