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
zalisa [80]
3 years ago
11

The equation a = 640s gives the relationship between s square miles and a acres. Pam owns 7.5 square miles of farmland. How many

acres does she own?
A. 480 acres
B. 11.72 acres
C. 4,800 acres
D. 1.17 acres
Mathematics
2 answers:
stich3 [128]3 years ago
5 0
Quantity of farmland owned by Pam = 7.5 square miles.
The other important information given in the question is the equation relating square miles and acres. Using that information, the answer to the question can be easily reached.
a = 640s
   = 640 * 7.5 acres
   = 4800 acres.
From the above deduction, we can conclude that the correct option among all the options that are given in the question is the third option or option "C".
TiliK225 [7]3 years ago
5 0

Answer: the answer is

4800 acres.

You might be interested in
How do you solve this and i have other questions like this one i really need to know how to do it
Natalija [7]

Answer:

25

Step-by-step explanation:

it's because 5 is squared so 5x5 is 25 and x squared

7 0
3 years ago
While her husband spent 2½ hours picking out new speakers, a statistician decided to determine whether the percent of men who en
AVprozaik [17]

Answer:

z=\frac{p_{M}-p_{W}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{M}}+\frac{1}{n_{W}})}}   (1)

z=\frac{0.34848-0.34782}{\sqrt{0.34831(1-0.34831)(\frac{1}{66}+\frac{1}{23})}}=0.0057  

p_v =P(Z>0.0057)=0.4977  

The p value is a very high value and using the significance level \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can say the the percent of men who enjoy shopping for electronic equipment is NOT significantly higher than the percent of women who enjoy shopping for electronic equipment.  

Step-by-step explanation:

1) Data given and notation  

X_{M}=23 represent the number of men that said they enjoyed the activity of Saturday afternoon shopping

X_{W}=8 represent the number of women that said they enjoyed the activity of Saturday afternoon shopping

n_{M}=66 sample of male selected

n_{W}=23 sample of demale selected

p_{M}=\frac{23}{66}=0.34848 represent the proportion of men that said they enjoyed the activity of Saturday afternoon shopping

p_{W}=\frac{8}{23}=0.34782 represent the proportion of women with red/green color blindness  

z would represent the statistic (variable of interest)  

p_v represent the value for the test (variable of interest)

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to check if the percent of men who enjoy shopping for electronic equipment is higher than the percent of women who enjoy shopping for electronic equipment , the system of hypothesis would be:  

Null hypothesis:p_{M} \leq p_{W}  

Alternative hypothesis:p_{M} > p_{W}  

We need to apply a z test to compare proportions, and the statistic is given by:  

z=\frac{p_{M}-p_{W}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{M}}+\frac{1}{n_{W}})}}   (1)

Where \hat p=\frac{X_{M}+X_{W}}{n_{M}+n_{W}}=\frac{23+8}{66+23}=0.34831

3) Calculate the statistic

Replacing in formula (1) the values obtained we got this:  

z=\frac{0.34848-0.34782}{\sqrt{0.34831(1-0.34831)(\frac{1}{66}+\frac{1}{23})}}=0.0057  

4) Statistical decision

Using the significance level provided \alpha=0.05, the next step would be calculate the p value for this test.  

Since is a one side right tail test the p value would be:  

p_v =P(Z>0.0057)=0.4977  

So the p value is a very high value and using the significance level \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can say the the percent of men who enjoy shopping for electronic equipment is NOT significantly higher than the percent of women who enjoy shopping for electronic equipment.  

4 0
3 years ago
There are 2.54 centimeters in 1 inch. There are 100 centimeters in 1 meter. To the nearest inch, how many inches are in 2 meters
AlekseyPX

Answer:

79 inches

Step-by-step explanation:

2 m * 100cm/m * 1 in/2.54cm = 78.7401574803 in

rounded

79 inches

7 0
3 years ago
The radius of a circle is 44 centimeters. What is the circle's circumference?
Kay [80]

Answer:

276

Step-by-step explanation:

Circumference = 2πr

= 276

7 0
3 years ago
What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x – 2)?<br><br> 3<br> 4<br> 5<br> 9
wolverine [178]
The correct answer is 4

1.5 (4+4) -3 = 9

4.5 ( 4-2) =9
4 0
3 years ago
Read 2 more answers
Other questions:
  • I really need help guys can some one plz help me it's for 10 points
    13·1 answer
  • If you take a certain number and add a zero to the right of it and subtract the result from 143, you'll get the tripled imagined
    7·1 answer
  • PLEASE HELP FOR A QUIZ !!!! 40 POINTS
    5·2 answers
  • Deedee wants to buy four pairs of shoes that cost $60.25 each. How much money does she need to save to purchase the shoes?
    13·1 answer
  • Factor the expression. 20g3 + 24g2 – 15g – 18
    14·2 answers
  • What is the length of the radius, r?
    13·2 answers
  • PLZZ HELP WITH ALGEBRA..
    14·2 answers
  • If you roll the cube 60 times, how many numbers less than 3?
    6·1 answer
  • PLEASE ANSWER ASAP !!!!!!
    12·1 answer
  • Can some one help me on this the last answer since you can’t see it is CB=AC
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!