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3 years ago

Find the slope of the line -3/2 2/3 3/2 -2/3

Mathematics

2 answers:

Alona [7]3 years ago

5 0

(0,1) (2,4)

slope = (y2-y1)/(x2-x1)

m= (4-1)/(2-0)

m=3/2

Choice C

SpyIntel [72]3 years ago

3 0

Answer:

3/2 (c)

C is the answer.

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Answer:

Answer: x = 33, y = 81..........

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3 years ago

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Which statement is true about the discontinuities of the function f(x)? f (x) = startfraction x minus 5 over 3 x squared minus 1

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Answer:

there are holes at x= 3/2 and x=-1/3

Step-by-step explanation:

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2 years ago

A study of 420 comma 000 cell phone users found that 134 of them developed cancer of the brain or nervous system. Prior to this

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Answer: (0.00306,0.00334)

Step-by-step explanation:

Given : Sample size : n= 420000

The number of users developed cancer of the brain or nervous system =134

Then , the proportion of users developed cancer of the brain or nervous system :

$p=\dfrac{134}{420000}\approx0.0032$

Significance level : $1-0.90=0.1$

Critical value : $z_{\alpha/2}=1.645$

The confidence interval for population proportion is given by :-

$p\ \pm\ z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}\\\\=0.0032\pm (1.645)\sqrt{\dfrac{(0.0032)(1-0.0032)}{420000}}\approx0.0032\pm0.00014\\\\=(0.00306,0.00334)$

Hence, the 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system is (0.00306,0.00334).

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3 years ago

AB is a diameter of circle C. What is the degree measure of x?

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It’s a right angle. it follows the circle theorem ‘the angle in a semi-circle is 90 degrees’

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4 years ago

1/2x-7=1/3(x-12) pls find the value of x

KIM [24]

Answer:

x=18

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

(1 /2 )x−7 = (1 /3 )x−4 (Distribute)

Step 2: Subtract 1/3x from both sides.

(1 /6) x−7=−4

Step 3: Add 7 to both sides.

(1 /6 )x=3

Step 4: Multiply both sides by 6.

x=18

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4 years ago

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