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Allushta [10]
3 years ago
14

Given f(x) = 2x+1 and g(x) = 7/4x + 1 what is the value of f(1)-g(-4) A) -3 B) 3 C) 9 D) -9

Mathematics
1 answer:
s2008m [1.1K]3 years ago
5 0

Answer:

c)9

Step-by-step explanation:

f(x)=2x+1

f(1)=2(1)+1

f(1)=2+1

f(1)=3

g(x)=7/4 x+1

g(-4)=7/4 (-4)+1

g(-4)=-7+1

g(-4)=-6

f(1)-g(-4)=3-(-6)

=3+6

=9

<h3><u>N</u><u>o</u><u>t</u><u>e</u><u>:</u><u>i</u><u>f</u><u> </u><u>y</u><u>o</u><u>u</u><u> </u><u>n</u><u>e</u><u>e</u><u>d</u><u> </u><u>t</u><u>o</u><u> </u><u>a</u><u>s</u><u>k</u><u> </u><u>a</u><u>n</u><u>y</u><u> </u><u>question</u><u> </u><u>please</u><u> </u><u>let</u><u> </u><u>me</u><u> </u><u>know</u><u>.</u></h3>
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Answer:

<em>Degrees of freedom for independence  in chi-square statistic</em>

<em>ν = ( r-1) (s-1) =6</em>

Step-by-step explanation:

<u><em>Explanation</em></u><u>:-</u>

Given data  chi-square test for independence is being used to evaluate the relationship between two variables

<em>Given "A" is classified into 3 categories</em>

<em>Second 'B' is classified into 4 categories</em>

In this chi-square test, we test if two attributes A and B under consideration are independent or not

We will assume that

<em>Null Hypothesis : H₀</em>: The two variables are independent

<em>Degrees of freedom in chi-square test for independence </em>

<em>ν = ( r-1) (s-1)</em>

<em>Given data 'r' = 3  and  's' = 4</em>

<em>Degrees of freedom for independence </em>

<em>ν = ( r-1) (s-1) = ( 3-1) ( 4-1) = 2×3 =6</em>

<em>Test statistic</em>

<em>                        χ ²  =  ∑  </em>\frac{(O-E)^{2} }{E}<em></em>

<em></em>

4 0
3 years ago
Henry wanted to collect 65 pounds of cans in 7 days. How much should he collect each day to reach his goal? Which two whole numb
Marysya12 [62]
Answer:10 cans per day
Divide 65 by 7 and increase by 1 so that you get a number higher and not less than 65
7 0
3 years ago
I need to find the value of x
Zanzabum
Hello, 

We know that all the angles shown add up to 360 (think of a circle).

We also know that the angle of (6x-1)° is congruent to the angle opposite of it. (the "top left" angle) = 6x - 1°

We also know that the angle of (7x-1)° is congruent to the angle opposite of it. 
(the "bottom left" angle) = 7x -1°

Knowing the sum of all angles as well as the angle measures in terms of x, we can add all the angle measures and equal it to 360.

So, we get (7x - 1) + (7x - 1) + (6x - 1) + (6x - 1) = 360
Simplify and we get:
26x - 4 = 360
Add 4 to both sides to get 26x = 364 
Divide by 26 on both sides to get 14.

x = 14

Hope this helps!


6 0
3 years ago
Read 2 more answers
Which graph represents the solution set to this system of equations? –x + 2y = 6 and 4x + y = 3 On a coordinate plane, a line go
erastova [34]

Answer:

On a coordinate plane, a line goes through (0, 3) and (2, 4) and another line goes through (0, 3) and (0.75, 0).

This answer almost coincide with option C. I suppose there was a mistype.

Step-by-step explanation:

The system of equations is formed by:

–x + 2y = 6

4x + y = 3

In the picture attached, the solution set is shown.

The first equation goes through (0, 3) and (2, 4), as can be checked by:

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–(2) + 2(4) = 6

The second goes through (0, 3) and (0.75, 0), as can be checked by:

4(0) + (3) = 3

4(0.75) + (0) = 3

6 1
4 years ago
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Answer:

92.4

Step-by-step explanation:

50$ + 120% = 110

110 - 20% = 88

88 + 5% = 92.4

7 0
3 years ago
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