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ZanzabumX [31]
2 years ago
15

Please Help Me

Mathematics
1 answer:
Ymorist [56]2 years ago
4 0

Answer:

81 m/s

Step-by-step explanation:

If the box is sliding at 27 m per second, and it's been sliding for 3 seconds, then you should multiply 3 × 27 and your answer would be 81 m/s

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the seating capacity of basketball stadium is 5782 the seats are arranged in 24 sections of the same size any seats over from th
notsponge [240]
5782/24=240 since we round down to s whole.

Multiply again by 24.
240*24=5760

There are 5782-5760=22 priority seats.

The correct answer is 22.
3 0
3 years ago
4/3=12/x in proportion
Zolol [24]

Answer:

9

Step-by-step explanation:

Cross Multiply: \frac{4}{3} =\frac{12}{x}

Simplify: 4x=36

x=9

5 0
3 years ago
If sin(x)=m, with m>0, find the value of sin(pie-x)
viva [34]

Answer:

Step-by-step explanation:

Sin (π - x ) = Sin x = m

8 0
3 years ago
Yasmine finds the absolute value of –655. Which expression represents this value?
expeople1 [14]

Answer:

0-(-655)

Step-by-step explanation:

I's hopw this helps you.

8 0
3 years ago
You plan to conduct a marketing experiment in which students are to taste one of two different brands of soft drink. Their task
Talja [164]

Answer:

the probability is 90% that the sample percentage is contained within 45.5% and 54.5% symmetric limits of the population percentage.

Step-by-step explanation:

From the given information:

Sample size n = 200

The standard deviation for a sampling distribution for two brands are equally likely because the individual has no ability to discriminate between the two soft drinks.

∴

The population proportion p_o = 1/2 = 0.5

NOW;

\sigma _p = \sqrt{\dfrac{p_o(1-p_o)}{n}}

\sigma _p = \sqrt{\dfrac{0.5(1-0.5)}{200}}

\sigma _p = \sqrt{\dfrac{0.5(0.5)}{200}}

\sigma _p = \sqrt{\dfrac{0.25}{200}}

\sigma _p = \sqrt{0.00125}

\sigma _p = 0.035355

However, in order to determine the symmetrical limits of the population percentage given that the z probability is 90%.

we use the Excel function as computed as follows in order to determine the z probability  = NORMSINV (0.9)

z value = 1.281552

Now the symmetrical limits of the population percentage can be determined as: ( 1.28, -1.28)

1.28 = \dfrac{X - 0.5}{0.035355}

1.28 × 0.035355 = X - 0.5

0.0452544= X - 0.5

0.0452544 + 0.5 = X

0.5452544 = X

X \approx 0.545

X = 54.5%

-1.28 = \dfrac{X - 0.5}{0.035355}

- 1.28 × 0.035355 = X - 0.5

- 0.0452544= X - 0.5

- 0.0452544 + 0.5 = X

0.4547456 = X

X \approx 0.455

X = 45.5%

Therefore , we can conclude that the probability is 90% that the sample percentage is contained within 45.5% and 54.5% symmetric limits of the population percentage.

7 0
3 years ago
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