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
andrew11 [14]
3 years ago
15

the width of a rectangle is 7 meters greater than its length.If the area of the rectangle is 170 square meters, write the quadra

tic equation in standard form for the equation that would represent the area of the rectangle. Let x equal the length of the rectangle.
Mathematics
1 answer:
Anika [276]3 years ago
4 0

Answer:

x^2+7x-170 = 0

Step-by-step explanation:

To calculate an area of a rectangle, use the formula A=l*w. We know the width is 7m greater than the length. So w = 7 + x. So the area is A= (7+x)*x.

We also know the area is 170. Substitute this value for A and solve.

170 = (7+x)(x)\\170 = 7x+x^2\\x^2+7x-170 = 0


You might be interested in
Find the value of x and explain how you got your answer ​
Varvara68 [4.7K]

Answer:

59

Step-by-step explanation:

2x+2 = 120 because they are vertical angles

2x = 118

x = 59

5 0
2 years ago
Read 2 more answers
Find the slope of the line through the given points.<br> (-2,7) and (2,-5)
Andreyy89

Answer:

y = -3x + 1

Step-by-step explanation:

hope this is right!

4 0
3 years ago
Determining function values from a graph
professor190 [17]

Answer:

The y value of a point where a vertical line intersects a graph represents an output for that input x value. If we can draw any vertical line that intersects a graph more than once, then the graph does not define a function because that x value has more than one output.



6 0
3 years ago
Can U solve this?!<br><br> No Improper answers!
amm1812

Answer:

1

Step-by-step explanation:

multiply and divide(left to right)

=9-9+1

Add and subtract(left to right)

=1

6 0
3 years ago
Read 2 more answers
In your own words, explain the Normal Distribution and provide a real world example.
elena-14-01-66 [18.8K]

Answer:

The Normal distribution is a continuous probability distribution with possible values all the reals. Some properties of this distribution are:

Is symmetrical and bell shaped no matter the parameters used. Usually if X is a random variable normally distributed we write this like that:

X \sim N(\mu , \sigma)

The two parameters are:

\mu who represent the mean and is on the center of the distribution

\sigma who represent the standard deviation  

One particular case is the normal standard distribution denoted by:

Z \sim N(0,1)

Example: Usually this distribution is used to model almost all the practical things in the life one of the examples is when we can model the scores of a test. Usually the distribution for this variable is normally distributed and we can find quantiles and probabilities associated

Step-by-step explanation:

The Normal distribution is a continuous probability distribution with possible values all the reals. Some properties of this distribution are:

Is symmetrical and bell shaped no matter the parameters used. Usually if X is a random variable normally distributed we write this like that:

X \sim N(\mu , \sigma)

The two parameters are:

\mu who represent the mean and is on the center of the distribution

\sigma who represent the standard deviation  

One particular case is the normal standard distribution denoted by:

Z \sim N(0,1)

Example: Usually this distribution is used to model almost all the practical things in the life one of the examples is when we can model the scores of a test. Usually the distribution for this variable is normally distributed and we can find quantiles and probabilities associated

4 0
3 years ago
Other questions:
  • X÷4=6 I need to find x I cant please help need this desperatly
    5·1 answer
  • Find the ratio of the trig function indicated and theta
    15·1 answer
  • Compare the decimals 7,231.60 and 7,231.6
    9·2 answers
  • Solve for p.<br><br> 2(p + 1) = 24
    15·2 answers
  • Here is another problem that i need help on 2/5 divided by 1/6
    8·2 answers
  • A toy motorcycle costs $24. A toy airplane costs 4 times as much as the toy motorcycle. How much more does the toy airplane cost
    9·2 answers
  • What is the least common multiple of 5 and 10
    5·2 answers
  • Shalika bought a purse for $120. The tax rate is 9%. What is the total amount Shalika paid? Enter your answer in the box.
    9·2 answers
  • Can someone help me with this q?
    11·1 answer
  • A gallon of gas has dropped to 2.85 if yesterday was 2.90 what is the percentage of decrease
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!