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
Contact [7]
3 years ago
7

The width of a rectangle is 6 less than twice its length. if the area of the rectangle is 110 cm^2, what is the length of the di

agonal?
Mathematics
1 answer:
nydimaria [60]3 years ago
7 0
<span> the answer is: 9.16485485837795, -6.16485485837795. but if you need the work here it is</span><span>
Step 2. Let 2L-6 be the width since the width of a rectangle is 6 less than twice its length. 

Step 3. Area A=113=L*(2L-6) 

Step 4. Solving for L yields the following steps 

 

Subtract 113 from both sides of the equation to get a quadratic equation 

 

 

To solve for L, we can use the quadratic formula given as 

 

where a=2, b=-6 and c=-113 

<span><span>Solved by pluggable solver: SOLVE quadratic equation with variable</span><span>Quadratic equation  (in our case ) has the following solutons:



For these solutions to exist, the discriminant  should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=940 is greater than zero. That means that there are two solutions: .




</span></span></span>
You might be interested in
Simplify the rational expression. 5x - 40 / 64 - x^2
Maru [420]
5x - 5 over 8 - x ^ 2
7 0
3 years ago
Which box plot represents a set of data that has the greatest mean absolute deviation?
Kobotan [32]

Answer:

d

Step-by-step explanation:

took the test

6 0
3 years ago
5/7 x 21/25 what is the answer to this???!!?!?!!!?
lbvjy [14]
Multiply the tops and multiply the bottoms
Aka
5*21
-------
7*25

And simplify
5 0
3 years ago
F(x)=−4x ^ 2 +10 {Find }f(-2)
BlackZzzverrR [31]

Answer:

f(-2) = -6

Step-by-step explanation:

<u>Step 1:  Set x to -2 </u>

f(-2) = -4(-2)^2 + 10

f(-2) = -4(4) + 10

f(-2) = -16 + 10

f(-2) = -6

Answer:  f(-2) = -6

3 0
3 years ago
A car advertisement claims that a certain car can accelerate from rest to 70 km/hr in 7 seconds find the car acceleration
iVinArrow [24]

Answer:

acceleration \approx 2.78\,\,\frac{m}{s^2}

Step-by-step explanation:

The acceleration is the change in velocity per unit of time.

Therefore to have this rate in appropriate units that can combine, we re-write the change from 0 to 70 km/h in meters per second using:

70 \frac{km}{h} = \frac{70000}{3600} \frac{m}{s}

so in this case the acceleration becomes:

accel=\frac{change\,\,vel}{change\,\,time} =\frac{70000m}{3600\,*7\,s^2} \approx 2.78\,\,\frac{m}{s^2}

7 0
3 years ago
Other questions:
  • Is -4x+8y=24 and y=1\2x+7 perpendicular, parallel, or neither
    7·1 answer
  • Find the total profit or loss for each color of T-shirt.
    5·1 answer
  • iranda is conducting a poll to determine how many students would attend a students-only school dance if one was held. Which samp
    5·1 answer
  • Simplify fraction 40/85
    5·1 answer
  • Wrote an inequality that represents Malachi situation 10 points
    7·1 answer
  • What’s 3(a+b+c) if a=2 and b=3 and c=9
    7·1 answer
  • Plsss hurry i need help brainliest involed
    10·1 answer
  • Can someone help me with this one plz
    15·2 answers
  • Tonya works 60 hours in 3 weeks. Select ALL the true statements OR YOU WILL FAIL THE GRADE.
    11·2 answers
  • A well-mixed cookie dough will produce cookies with a mean of 6 chocolate chips apiece. What is the probability of getting a coo
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!