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Verizon [17]
3 years ago
9

Is y=2x-3 proportional

Mathematics
1 answer:
Aleksandr [31]3 years ago
5 0
Yes it is because it is -3x2x plus y in the quadratic equations
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Select the correct answer. Which statement is correct with respect to f(x) = -3|x − 1| + 12?
Sati [7]

The correct answer is D

5 0
2 years ago
Which is a better buy 4 grapefruits for 80 cents or 12 grapefruits for $1.80?
PtichkaEL [24]
12 grapefruit for 1.80. so if you multiply. 80 cents by 3=2.40 for 12 but 1.80 us cheaper
8 0
2 years ago
Which represents the inverse of the funtion f(x)= 4x​
kkurt [141]

Answer:

h(x)= 1/4x

Step-by-step explanation:

4x=4x/1   flip the numerator and denominator to get 1/4x

8 0
2 years ago
Read 2 more answers
If x varies as y and if x=20 when y=9 , find x when y=18​
andrezito [222]

Answer:1/2 y

Step-by-step explanation:

We can solve this using ration reasoning:  

x

2

x

1

=

y

2

y

1

Explanation:

If  

x

varies directly with  

y

(written  

x

∝

y

), then doubling  

y

means doubling  

x

, so the rations of final values and initial values will be the same:

x

2

x

1

=

y

2

y

1

In this case,

x

2

9

=

24

18

x

2

=

9

⋅

24

18

=

12

Or, intuitively, if  

x

∝

y

and  

x

=

9

when  

y

=

18

, we can conclude that

x

=

1

2

y

and  

1

2

of 24 is 12.

3 0
3 years ago
Researchers wondered if there was a difference between males and females in regard to some common annoyances. They asked a rando
Zinaida [17]

Answer:

Step-by-step explanation:

Males proportion p_1 = \frac{163}{532} =0.3064

Females proportion p_2 = \frac{203}{589} =0.3447

H_0: p_1 = p_2\\H_a: p_1

(one tailed test for comparison of proportions)

Test statistic = \frac{p_1-p_2}{p(1-p)\sqrt{\frac{1}{n_1}+\frac{1}{n_2}  } }

=-1.3641

Here p= combined proportion = \frac{163+203}{532+589} \\=0.3291

p value = 0.0869

Since p >0.05, accept null hypothesis.

The evidence does not suggest a higher proportion of females are annoyed by this​ behavior

3 0
3 years ago
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