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
nikklg [1K]
3 years ago
11

The length of a rectangle is 3 inches more than its width. the area of the rectangle is 40 square inches. what is the length, in

inches, of the rectangle?
Mathematics
1 answer:
IceJOKER [234]3 years ago
4 0
Since width is the smaller value, set width=x. That wold mean that length=x+3. Since Area=width*length, 40=x(3+x). Distribute the x to give you 40=3x+x^2. Set the equation equal to 0 giving you x^2+3x-40=0. Factor the equation to give you (x+8)(x-5)=0. Set each factor equal to 0. x+8=0 gives you x=-8 & x=-5 gives you x=5. Since we're working with lengths of objects, it can't be negative. Therefore, your width is 5. To find length, substitute width into the original expression (x+3). Therefore, length is 5+3=8.
You might be interested in
8.4 = 3 x m what is the value of m
nataly862011 [7]
M= 2.8

Alternate form:

14/5 or 2 4/5
5 0
2 years ago
I need help with number 20 please ​
Doss [256]

Answer:

3 = 92 degree 4 = 88 degree

Step-by-step explanation:

3 = 45 + 47 = 92 degree

4 = 180 - 92 = 88 degree

5 0
2 years ago
Read 2 more answers
Find the common difference of the arthmetic sequence shown
SpyIntel [72]
Where is it shown? Please show a picture
5 0
3 years ago
Can someone help me out here? +brainliest
natali 33 [55]

Answer:

  A) 40

  B) length = 4.275 km; not quite true. See below for explanation.

Step-by-step explanation:

A) Your calculator can tell you the ratio ...

  (national pennies)/(local pennies) = (8×10⁶)/(2×10⁵)

  = (8/2)×10⁶⁻⁵ = 4×10¹ = 40

The national drive collected 40 times as many pennies as the Valley Stream Central goal.

__

B) Multiplying the number of pennies by the diameter of each will tell the length of the line of pennies. That length can be compared to the 5 km distance to determine if the reporter's statement is true. (It is <em>not</em> true.)

  length of string = (length of penny) × (number of pennies)

  = (19×10⁻⁶ km) × (2.25×10⁵) = 42.75×10⁻¹ km = 4.275 km

The length of the pennies laid side-to-side is less than 5.0 km. The reporter's statement is not true.

_____

All scientific and graphing calculators and many 4-function calculators will let you enter numbers in scientific notation.

3 0
3 years ago
Which expression has a negative value?
7nadin3 [17]

Answer: The answer would be B

Step-by-step explanation:

I had a test like this so I kinda know wut the answer is a few weeks or so ago but u need to multiply -5 • 5 (which would be negative since it has one negative sign) then multiply -5 • -5 (since it has another negative it’s positive) then u just multiply the answers that u got from the times 5 u did -bonus if it’s 1 negatives it’s a negative but if it’s 2 negatives it’s a positive

4 0
3 years ago
Other questions:
  • Please expand the logarithmic expression: Log3(7X^3Y^2)
    9·1 answer
  • Parker has 12 blue marbles. Richard has 3/4 of blue marbles that Parker has.
    12·1 answer
  • Debbie is making an abstract painting with two triangles. The dimensions of the painting are shown below: 6x8 and 10x8 The total
    7·1 answer
  • Kylie sells 2 concert tickets every minute. She has already sold 8 tickets. If f(t) represents the total number of tickets that
    13·1 answer
  • Aaron is 5 years older than Bronwyn, Carl is 7 years older than Aaron and the sum of all their ages is 53 years. How old is Bron
    8·1 answer
  • At noon the minute and the hour hands overlap. In how man hours and minutes will it happen next?
    10·2 answers
  • A slug takes 4.25 minutes to travel 11.2 centimeters. What is the speed of the slug in meters per second?
    15·1 answer
  • This table shows the ratio of number of people to liters of ginger ale needed find the missing values
    15·1 answer
  • Are the two triangles similar? how do you know​
    6·1 answer
  • What is the equation represented by the order pairs {(0,32),(1,16),(2,8),(3,4)}?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!