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g100num [7]
3 years ago
6

Please help with 47-50

Mathematics
2 answers:
Tems11 [23]3 years ago
7 0

Answer:

-3

Step-by-step explanation:

bonufazy [111]3 years ago
5 0
47.) 0,-2
48.) 0,-5
49.) -5,-8.5
50.) 3, 0.75
51.) 0, -3
52.) 0,-2.5
The axis of symmetry is the top or bottom of the “U” shaped graph and I always put the equations into Desmos
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Please please please please please please please please please please please please please answer
Mademuasel [1]
The answer is A. You can check by plugging in the numbers for x.
8 0
3 years ago
Read 2 more answers
Suppose f(x) = mx + b. What is the inverse function in terms of m and b?
katrin2010 [14]

Answer:

f^(-1)(x) = (x-b)/m  or  x/m - b/m

Step-by-step explanation:

f(x) = y = mx + b

To find the inverse function, interchange x and y and solve for y, i.e.

x = my + b

my = x-b

y = (x-b)/m = x/m - b/m

7 0
2 years ago
If the function f(x)=-1/2x-7 were graphed, which of the following is true? hurry I have 10 minutes
jeka94
WE NEED ANSWER CHOICES 
4 0
2 years ago
A recent survey concluded that the proportion of american teenagers who have a cell phone is 0.27. the true population proportio
Jet001 [13]

Answer:

The mean for the sampling distribution of the sample proportion is 0.29

The standard deviation for the sampling distribution of the sample proportion is 0.01435

Step-by-step explanation:

The mean for the sampling distribution of the sample proportion is always equal to the true population proportion, in this case; p = 0.29

The standard deviation for the sampling distribution of the sample proportion is calculated as;

\sqrt{\frac{p(1-p)}{n} }

Using the given values;

p = 0.29

1 - p = 0.71

n = 1000

The standard deviation becomes;

\sqrt{\frac{(0.29)(1-0.29)}{1000} } \\

The s.d becomes 0.01435

4 0
3 years ago
4/5w-12=2/3w<br> what is the step by step answer to those equation?
Mariulka [41]
Kulay, there is no such thing as a "step by step answer" here.  You seem to want a "step by step solution."

I must assume that by 4/5 you actually meant (4/5) and that by 2/3 you meant (2/3).  Then your equation becomes:

(4/5)w - 12 = (2/3)w. 

The LCD here is 5*3, or 15, so mult. every term by 15:

12w - 180 = 10w.   
Add 180 to both sides, obtaining 12 w - 180 + 180 = 10w + 180.     

Then 12w = 10w + 180.  Simplifying, 2w = 180.    What is w?
4 0
3 years ago
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