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
Tomtit [17]
3 years ago
7

The area of a rectangle is expressed as (14r + 21) square feet. If the width of the

Mathematics
1 answer:
lilavasa [31]3 years ago
8 0

Answer:

 L  = 2r  + 3

Step-by-step explanation:

Given parameters:

Area of rectangle  = 14r + 21

Width of the rectangle  = 7ft

Unknown:

Length of the rectangle  = ?

Solution:

If the length of the rectangle is designated as L;

 Area of a rectangle = Length x width

Now insert the parameters:

           14r + 21   = L x 7

            L  = \frac{14r + 21}{7}  

           L  = 2r  + 3

You might be interested in
A college student is interested in testing whether business majors or liberal arts majors are better at trivia. The student give
attashe74 [19]

Answer:

There is no significant difference between the two averages at 5% level

Step-by-step explanation:

Given that a a college student is interested in testing whether business majors or liberal arts majors are better at trivia.

The student gives a trivia quiz to a random sample of 30 business school majors and finds the sample’s average test score is 86. He gives the same quiz to 30 randomly selected liberal arts majors and finds the sample’s average quiz score is 89

Thus he has done a hypothesis testing for comparison of two means of different subjects.  n =30

H_0: Mean of business majors = Mean of liberal arts majos\\H_a:Mean of business majors \neq  Mean of liberal arts majos

Since which is better is not claimed we use two tailed test here

We find that p value = 0.0524 >5% our alpha

Since p >alpha, we find that there is no significant difference between the averages of these two groups and null hypothesis is accepted

4 0
3 years ago
What is the product? 5/9 × 3
Dmitry_Shevchenko [17]
<span>The answer is1.66666666667</span>
8 0
3 years ago
Find the x-intercept and the y-intercept for the graph of the equation x+y=7
Gekata [30.6K]
All of them are wrong except for the third one
8 0
3 years ago
An alloy is composed of nickel, zinc, and copper in a 7:2:9 ratio. How many kilograms of each metal is needed to make 3.8 kg of
Tamiku [17]
Ni : Zn: Cu = 7:2:9 =7x : 2x : 9x

7x+2x+9x = 3.8
18x=3.8
x=3.8/18=1.9/9≈0.21

Ni:   7x=7*0.21=1.47 ≈1.5 kg
Zn:  2x=2*0.21=0.42≈0.4 kg
Cu: 9x=9*0.21=1.89 ≈1.9 kg

Check 1.5+0.4+1.9 =3.8 True
6 0
3 years ago
20 POINT QUESTION!!<br><br> Complete the equation of the linear function.<br><br><br> y = <br> x +
Viefleur [7K]
A=(0,1); B=( \frac{1}{2}, 0) \\ &#10;y=ax+b&#10; &#10;\left \{ {{1=0a+b} \atop {0= \frac{1}{2}+b }} \right.  \\ &#10; \left \{ {{1=b} \atop { \frac{1}{2}a=-b}} \right.  \\ &#10; \left \{ {{b=1} \atop {a=-2}} \right. &#10;&#10;y=-2x+1
8 0
3 years ago
Other questions:
  • What is the solution to the Inequality -6x&lt;-18
    5·1 answer
  • What is the estimate of the sum of 5/12 and 7/8?
    14·1 answer
  • Rectangles A and B have the same perimeter but are different shapes Rectangle S is 5 inches long and 3 inches wide. Rectangle B
    11·1 answer
  • Serena’s average speed during her training run was 8 kilometers per hour over the 2 hours that she ran. What was the total dista
    10·2 answers
  • Need help ASAP! Show work if you can, it’s fine if not tho!
    6·2 answers
  • Need help with this?
    12·1 answer
  • Identify the property shown by the equation.<br> 14 × 6 = 6 × 14
    10·1 answer
  • In a pentagon, the second angle is twice the first but half of the fourth, third angle is three times the first and the fifth an
    14·1 answer
  • 10) g(n) = -21+ 3n; Find gl-6)<br> A) 152 <br> B) -20<br> C) 1<br> D) 90
    15·1 answer
  • Solve for h.<br> A=3h <br> Can anyone help me?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!