1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Usimov [2.4K]
3 years ago
14

(please zoom / zoom out if needed to see question. (: )

Mathematics
1 answer:
Katarina [22]3 years ago
3 0
Here is your answer the area of the trapezoid the diagram for question 2

You might be interested in
A 5x5 table is filled with numbers (one number per cell). It is known that the product of 5 numbers in each column is negative.
Advocard [28]

Answer:

Yes

Step-by-step explanation:

A negative multiplied by another negative will turn into a positive. A positive multipled by a negative will stay as a negative.

5 0
2 years ago
the building is 1050 feet tall.sally built a scale model of the building .how tall is the model if she used the scale 1 centimet
goldenfox [79]

30 centimeters.

1050 divided by 35 = 30.

4 0
3 years ago
Find the estimate of square root of 22 to teh nearest tenth using a dudne number line
Yuliya22 [10]

Answer:

Step-by-step explanation:

22 of square foot to the nearest ten is 4.6

6 0
2 years ago
What is ghe solution to this equation?<br> 02(x - 20) = 44 - x
Oliga [24]
X= 40 is the answer to this equation
5 0
2 years ago
A major retail clothing store is interested in estimating the difference in mean monthly purchases by customers who use the stor
mixer [17]

Answer:

Critical value is t = 1.9901

Step-by-step explanation:

We are given the results of the sampling :

                                     In-House Credit Card                National Credit Card                    <u>Sample Size</u> :                              32                                                    50

<u>Mean Monthly Purchases </u>:      $45.67                                            $39.87

<u>Standard Deviation </u>:                $10.90                                             $12.47

Also, the managers wished to test whether there is a statistical difference in the mean monthly purchases by customers using the two types of credit cards, using a significance level α of 0.05.

<em>Firstly, we will specify our null and alternate hypothesis;</em>

Let \mu_1 = Mean Monthly Purchases of In-House Credit Card

     \mu_2 = Mean Monthly purchases of National Credit Card

So, Null Hypothesis, H_0 : \mu_1-\mu_2 = 0  {means that there is no difference in the mean monthly purchases by customers using the two types of credit cards}

Alternate Hypothesis, H_0 : \mu_1-\mu_2\neq 0  {means that there is statistical difference in the mean monthly purchases by customers using the two types of credit cards}

The test statistics that will be used here is <u>Two-sample t-test statistics</u>;

              T.S. = \frac{(\bar X_1-\bar X_2)-(\mu_1-\mu_2)}{s_p \sqrt{\frac{1}{n_1}+\frac{1}{n_2}  } }  ~ t_n___1+n_2-_2

where, \bar X_1 = Sample mean Purchases of In-House Credit Card = $45.67

           \bar X_2 = Sample mean Purchases of National Credit Card = $39.87

            s_p = pooled variance

            n_1 = In-house credit card sample = 32

            n_2 = National credit card sample = 50

So, degree of freedom of t-value here is (32 + 50 - 2) = 80

Now, at 0.05 significance level, t table gives critical value of t = 1.9901 at 80 degree of freedom.

<em>Therefore, the critical value assuming the population standard deviations are not known but that the populations are normally distributed with equal variances is t = 1.9901.</em>

4 0
3 years ago
Other questions:
  • The probability that a student uses the academic resource center on a regular basis is 0.33. in a group of 18 students, what is
    12·1 answer
  • For which of the following is the arc between the two hands of a clock greater than a semicircle?
    12·2 answers
  • Help me and I'll do the same :)
    9·1 answer
  • 5x y&gt;_10 x y&lt;_6 x 4y&gt;_12 x&gt;_0 y&gt;_0 minimum for c=10,000x + 20,000y
    14·1 answer
  • What is the common ratio of the geometric sequence?
    13·1 answer
  • Simplify 8y-7/8x+6y+3/8
    8·1 answer
  • the earth rotates about its axis once every 23 hours, 56 minutes and 4 seconds. Approximate the number of radians the earth rota
    15·1 answer
  • se quiere pintar una pared en forma de hexágono regular y se sabe que cada lado mide 3m y que su apotema es de 2,8m cual es el a
    7·1 answer
  • 10 PONITS<br><br> Can someone help me
    10·2 answers
  • And the inverse of f(x) = 3x²-5x+7 <br>​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!