3 years ago

I need help finding the slope

Mathematics

1 answer:

Studentka2010 [4]3 years ago

8 0

Answer:

its negative 1/3

Step-by-step explanation:

shawtyyyy

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-31+(-42)=<br> 38+(-43)=

Mice21 [21]

Answer:

-31+(-42)= -31-42 = -73

38+(-43)= 38-43 = -5

(-) - (-) = +

(-)+(-) = +

(-)+(+) = -

3 0

3 years ago

What is the line ab and the o called?

pentagon [3]

Do u mean the angle? It's obtuse if that's what you meant

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3 years ago

A sports magazine claims that in a certain country, 45% of people like soccer A news channel asked 30 randomly selected people i

LiRa [457]

Answer:

Step-by-step explanation:

Hello!

The parameter of interest is "the population proportion of people that like soccer A news channel"= p

The hypothesis are:

H₀: p = 0.45

H₁: p ≠ 0.45

To study the population proportion you have to use the approximation of the standard normal distribution:

$Z= \frac{p'-p}{\sqrt{\frac{p(1-p)}{n} } }$ ≈ N(0;1)

A sample of n=30 was taken and surveyed, 18 of those answered positively, then the sample proportion is:

p'= 18/30= 0.6

The statistic under the null hypothesis is:

$Z_{H_0}= \frac{0.60-0.45}{\sqrt{\frac{0.45*0.55}{30} } } = 1.6514$

I hope it helps!

6 0

3 years ago

Find the area of the region bounded by the y-axis, x-axis and the line y=-2x+4.

Anna007 [38]

Answer:2

Step-by-step explanation:y = 0 : 0 = -2x + 4 → x = -2 is the x-intercept. Similarly, when the line crosses the y-axis, the x-coordinate at this point will be zero and substituting x = 0 into the equation will give us the y-intercept. x = 0 : y = 0 + 4 → y = 4 is the y-intercept.

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2 years ago

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Hannah is 3 years older than twice her brother Joey’s age. Joey is 2 years old. How old is Hannah? Show all of your work!

DaniilM [7]

Answer:

Step-by-step explanation:

twice for joey's age so joeys age is 2 double that it will be 4 so 3+4=7

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3 years ago