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3 years ago

Consider the slopes and y-intercepts of each system of equations.

Mathematics

1 answer:

Alja [10]3 years ago

6 0

Answer:

a.true

b.false

c.false.

d.false

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Unoccupied seats on flights cause airlines to lose revenue. Suppose a large airline wants to estimate its average number of unoc

Len [333]

Answer: 3

Step-by-step explanation:

Given : Standard deviation : $\sigma=4.1\text{ seats}$

Margin of error : $E=\pm5\text{ seats}$

Significance level : $\alpha: 1-0.95=0.05$

By using the standard normal table of z ,

Critical value : $z_{\alpha/2}=1.96$

The formula we use to find the minimum sample size required :-

$n=(\dfrac{z_{\alpha/2}\ \sigma}{E})^2$

i.e. $n=(\dfrac{(1.96)(4.1)}{5})^2=2.58309184\approx3$

Hence, the number of lights should we select if we wish to estimate μ to within 5 seats and be 95 percent confident =3

6 0

3 years ago

6+3(13-2)-5 to the second power

Pepsi [2]

6+3(11)-5
6+33-5
(34)^2
1156

(Next time, a calculator would be helpful)

8 0

3 years ago

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Spartan Stadium at San Jose State University in California has a seating capacity of about 30,000. A newspaper article states th

Jet001 [13]

Answer:

Number of tickets for the Spartans = 24000

Number of tickets for the visiting team’s fans = 6000

Step-by-step explanation:

Let the no. of tickets for the visiting team’s fans be x.

so,according to the question

no. of tickets for the Spartans = 4x

total seating capacity of Spartan Stadium = 30000

now, we see that,

4x+x = 30000

5x = 30000

x = 30000/5

x = 6000

Number of tickets for the visiting team’s fans = x = 600

Number of tickets for the Spartans = 4x = 4(6000) = 24000

4 0

3 years ago

Find the slope of the line passing through each pair of points. (9,4) and (5,-3).

rjkz [21]

Answer:

$m=\frac{7}{4}$

General Formulas and Concepts:

Order of Operations: BPEMDAS
Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

(9, 4)

(5, -3)

Step 2: Find slope m

Substitute: $m=\frac{-3-4}{5-9}$
Subtract: $m=\frac{-7}{-4}$
Simplify: $m=\frac{7}{4}$

3 0

3 years ago

1 + 1 = A 4 B 37 C 69 D. i. c. k

Shkiper50 [21]

Answer:

It is 2

Step-by-step explanation:

3 0

3 years ago

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