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3 years ago

I need help people please help me

Mathematics

1 answer:

Genrish500 [490]3 years ago

6 0

Answer:

Two pizzas are divided equally among six people:Two containers of berry jam are divided equally among eight people

2/6 : 2/8

1/3 per person : 1/4 per person

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According to the United States Census Bureau, the average single-family home constructed in 2016 was 2,463 square feet. Carmen w

Dimas [21]

Using the t-distribution, it is found that the value of the test statistic is t = -87.3.

At the null hypothesis, it is tested if the mean is of 2,463 square feet, that is:

$H_0: \mu = 2463$

At the alternative hypothesis, it is tested if the mean is smaller, that is:

$H_1: \mu < 2463$ .

We have the standard deviation for the sample, hence, the t-distribution is used to solve this question.

The test statistic is given by:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

The parameters are:

$\overline{x}$ is the sample mean.

$\mu$ is the value tested at the null hypothesis.

s is the standard deviation of the sample.

n is the sample size.

The values of the parameters are: $\overline{x} = 1640, \mu = 2463, s = 66, n = 49$ .

Hence, the value of the test statistic is:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{1640 - 2463}{\frac{66}{\sqrt{49}}}$

$t = -87.3$

To learn more about the t-distribution, you can take a look at brainly.com/question/25819230

7 0

2 years ago

Area of figure? Geometry help???

Serga [27]

$A = \dfrac{n}{360^\circ} \times \pi r^2$

$A = \dfrac{172^\circ}{360^\circ} \times 3.14159 \times (4~in.)^2$

$A = \dfrac{172^\circ}{360^\circ} \times 3.14159 \times 16~in.^2$

$A = 24.0~in.^2$

6 0

3 years ago

Benito spent $1837 to operate his car last year. Some of these expenses are listed below. Benito's only other expense was for ga

77julia77 [94]

I answered this question before. It lacked some data needed to solve this problem.

Operating Expenses
Cost Insurance $972 
Registration $114 
Maintenance $105

1837 - 972 - 114 - 105 = 646 cost of gasoline

646 / 7600 = 0.085 or 8.5 centavos

3 0

4 years ago

What is the maximum height of the basketball when the player passes the ball to someone? Initially, the ball moves at a speed of

ZanzabumX [31]

Answer with explanation:

Since the motion of the ball is projectile motion we shall use the equations for projectile motion.

The maximum height achieved by the projectile is given by

$h_{max}=\frac{v_{o}^{2}sin^{2}(\theta )}{2g}$

Applying the values we get

$h_{max}=\frac{12^{2}\times sin^{2}(45)}{2\times 9.81}\\\\h_{max}=3.669m$

The range of the projectile is given by

$R=\frac{v_{o}^{2}sin(2\theta )}{2g}$

Applying values we get

$R=\frac{12^{2}\times sin(2\times 45 )}{2\times 9.81}\\\\R=7.339m$

thus the maximum horizontal distance reached by the ball equals 7.339 meters after which it bounces thus a person standing 8 meters away will not be able to catch it.

(The height of the players is not taken into account since no info is given about their height.)

3 0

4 years ago

I can join video club A for $25 and rent videos for $1.00 each or I can join Video club B for $15 and rent videos for $2.00 each

PolarNik [594]

Answer:

25 + x = 15 + 2x

Step-by-step explanation:

8 0

3 years ago