answer.
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
densk [106]
2 years ago
6

plz help cant get no help will mark brainliest . 1. Write an expression that represents the length of the south side of the fiel

d. (2 pts) 2. Simplify the polynomial expression that represents the south side of the field. (2 pts) 3. Write a polynomial expression that represents the perimeter of the pumpkin field. (2 pts)4. Simplify the polynomial expression that represents the perimeter of the pumpkin field. 

Mathematics
1 answer:
madreJ [45]2 years ago
5 0
Answer and work shown above

You might be interested in
What is the proof the formula for cos(A+B)=cosAcosB-sinAsinB?
brilliants [131]
Given data, cos(A - B) = cosAcosB + sinAsinB 
<span>let, A=60' and B=30' ( here the ' sign bears degree) </span>
<span>L.H.S = cos(A - B) </span>
<span>=cos (60'-30) ( using value of A and B ) </span>
<span>=cos30' </span>
<span>= sqrt3/2 </span>
<span>R.H.S= cosAcosB + sinAsinB </span>
<span>=cos60' cos30' + sin60' sin30' </span>
<span>= 1/2* sqrt3/2+ sqrt3/2*1/2 </span>
<span>= sqrt3/4 + sqrt3/4 </span>
<span>=2 sqrt3/4 </span>
<span>= sqrt3/2 </span>
<span>so L.H.S =R.H.S or cos(A - B) = cosAcosB + sinAsinB</span>
8 0
2 years ago
. Donny had a 10-foot board. He used the board to make two shelves. One shelf measured 4 feet 7 inches wide and the other shelf
liberstina [14]

Answer:

The length of the missing piece is 2 ft 3 inches

Step-by-step explanation:

Here in this question, we are interested in calculating the length of the remaining piece of the board given that we have the total length of the board and two other pieces.

Mathematically, the remaining piece length can be calculated by subtracting the lengths of the known pieces

That would be;

10 ft - 4 ft 7 inches - 3 ft 2 inches

In a foot there are 12 inches

Thus

10 ft = 10 * 12 = 120 inches

4 ft 7 inches = 4(12) + 7 = 55 inches

3 ft 2 inches = 3(12) + 2 = 36 + 2 = 38 inches

Thus the length of the remaining piece would now be;

120 -55 -38 = 27 inches

That is same as 24 + 3 inches

24 inches = 2 ft

So 27 inches = 2 ft 3 inches

3 0
2 years ago
Beck finished 30% of his homework in 12 minutes. How many minutes will it take him to complete all of his homework?
arlik [135]
The correct answer is choice D.  If you put choice D into words, it is saying 30% (0.3) of the total is 12 minutes.

To solve this, use inverse operations.

<span><u>0.3m</u> = <u>12</u>
</span>0.3       0.3
m = 40

It will take Beck 40 minutes.

7 0
2 years ago
Read 2 more answers
A study was conducted to determine if there was a difference in the driving ability of students from West University and East Un
Sholpan [36]

Answer:

There is no significant evidence which shows that there is a difference in the driving ability of students from West University and East University, <em>assuming a significance level 0.1</em>

Step-by-step explanation:

Let p1 be the proportion of West University students who involved in a car accident within the past year

Let p2 be the proportion of East University students who involved in a car accident within the past year

Then

H_{0}:p1=p2

H_{a}:p1≠p2

The formula for the test statistic is given as:

z=\frac{p1-p2}{\sqrt{\frac{p*(1-p)*(n1+n2)}{n1*n2} } }  where

  • p1 is the <em>sample</em> proportion of West University students who involved in a car accident within the past year (0.15)
  • p2 is the <em>sample</em> proportion of East University students who involved in a car accident within the past year (0.12)
  • p is the pool proportion of p1 and p2 (\frac{15+12}{100+100}=0.135)
  • n1 is the sample size of the students from West University (100)
  • n2 is the sample size ofthe students from East University (100)

Then we have z=\frac{0.03}{\sqrt{\frac{0.135*0.865*(100+100)}{100*100} } } ≈ 0.6208

Since this is a two tailed test, corresponding p-value for the test statistic is ≈ 0.5347.

<em>Assuming significance level 0.1</em>, The result is not significant since 0.5347>0.1. Therefore we fail to reject the null hypothesis at 0.1 significance

6 0
2 years ago
Which of the following conditions is/are necessary to justify the use of t procedures in a significance test for the slope of a
Oksana_A [137]

Answer: l and ll only

Step-by-step explanation:

Those are necessary.

3 0
2 years ago
Other questions:
  • 9x^2 - 42x + 49= 64 can this be the area of a squere?
    9·2 answers
  • Find all values of x in the interval [0, 2π] that satisfy the equation. 7 sin(2x) = 7 cos(x)
    5·1 answer
  • Name the additive inverse of square root 52
    7·2 answers
  • Let f (x) = –x2 + 3x + 1 and g(x) = 2x. Look at the composition shown. What is the error in the student’s work? f (g (x)) = –(2x
    13·2 answers
  • In the diagram, points E, A, and B are collinear and the areas of square ABCD and right triangle EAD are equal. What are the coo
    8·2 answers
  • Which equation represents a linear function on I ready quiz
    11·2 answers
  • Which expression is equivalent to 12r + 8p –34r – 2p?
    15·2 answers
  • The ratio of money in Brian's wallet to Colin's wallet one day was 5:1. Brian spent £27 that day. Brian now had £3 less than Col
    14·1 answer
  • In the figure, polygon ABCD is transformed to create polygon A’B’C’D’. This transformation is a
    10·1 answer
  • Which situations can be represented by isometric transformations? Check all that apply. A photo is projected from a computer int
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!