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3 years ago

I need help please. Thank you.

Mathematics

1 answer:

AfilCa [17]3 years ago

8 0

The answers are C and B.
Answer A has infinite solutions, and D has no solutions

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Q6: Slope Intercept-Form: What is the slope and y-intercept of the following equation?"

Triss [41]

Answer:

Step-by-step explanation:

The equation for slope intercept form is simply

y = mx + b

in your problem m = -1/3

and b which is the y intercept = to 8/3

So A. is the answer

Hope this helps!

3 0

3 years ago

What is the equation of the line?

olga_2 [115]

Answer:

2y=x+2

Step-by-step explanation:

The line starts at 2, and is going up by a constant rate or 2/1.

5 0

3 years ago

A random sample of 64 students at a university showed an average age of 20 years and a sample standard deviation of 4 years. The

adelina 88 [10]

Answer:

The 90% confidence level is $19.15< L < 20.85$

Step-by-step explanation:

From the question we are told that

The sample size is $n = 64$

The mean age is $\= x = 20 \ years$

The standard deviation is $\sigma = 4 \ years$

Generally the degree of freedom for this data set is mathematically represented as

$df = n - 1$

substituting values

$df = 64 - 1$

$df = 63$

Given that the level of confidence is 90% the significance level is mathematically evaluated as

$\alpha = 100 - 90$

$\alpha =$ 10 %

$\alpha = 0.10$

Now $\frac{\alpha }{2} = \frac{0.10}{2} = 0.05$

Since we are considering a on tail experiment

The critical value for half of this significance level at the calculated degree of freedom is obtained from the critical value table as

$t_{df, \frac{ \alpha}{2} } = t_{63, 0.05 } = 1.669$

The margin for error is mathematically represented as

$MOE = t_{df , \frac{\alpha }{2} } * \frac{\sigma}{\sqrt{n} }$

substituting values

$MOE = 1.699 * \frac{4 }{\sqrt{64} }$

$MOE = 0.85$

he 90% confidence interval for the true average age of all students in the university is evaluated as follows

$\= x - MOE < L < \= x + E$

substituting values

$20 - 0. 85 < L < 20 + 0.85$

$19.15< L < 20.85$

4 0

3 years ago

I NEED HELP PLZ

Ratling [72]

D fed ifjk vs cjsioxhdjducjskvuhdkfuxhxiufuc

8 0

3 years ago

A plant grows 3 centimeters in 10 days. How much does it grow per day? Write your answer as a fraction in simplest form

ira [324]

10d = 3
d = 3/10
Grows 3/10cm per day

4 0

3 years ago

Read 2 more answers