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
lutik1710 [3]
3 years ago
12

How do you find the width of a rectangle when the perimeter is given?

Mathematics
1 answer:
ololo11 [35]3 years ago
4 0
Usually you are given more information about the rectangle such as distance of length in terms of width.

You know that the formula for perimeter is

P=2(l+w)

Substitute p and the other values to find width.

Hope I helped :)
You might be interested in
I dont really understand this. ranking brainliest !
Korolek [52]

Answer:

98

Step-by-step explanation:

because this is an isosceles triangle so base angle are equal and triangle add up to 180°. so H will be 41 as well to find out F

do 180-41-41=98 is the answer.

hope this helps :)

4 0
2 years ago
What numbers make this expression undefined x^2+3/x^2-11x-12
marusya05 [52]

\frac{ {x}^{2}  + 3}{ {x}^{2}  - 11x - 12}

Because which numbers will make the expessions undefined. We will focus on the denominator only.

Factor the terms.

(x - 12)(x + 1)

Now which 2 numbers that will make these terms become 0?

12 and - 1 of course.

So these 2 numbers that will make the expressions undefined are 12 and - 1

5 0
2 years ago
Let X denote the number of flaws along a 100-m reel of magnetic tape (an integer-valued variable). Suppose Zdenote the number of
Lemur [1.5K]

Answer:

a) P(20 \leq X \leq 30) = P(20-0.5 \leq X \leq 30+0.5)

P(19.5 \leq X \leq 30.5) = P(\frac{19.5-25}{5} \leq Z \leq \frac{30.5 -25}{5})=P(-1.1 \leq Z \leq 1.1)

And we can find this probability like this:

P(-1.1 \leq Z \leq 1.1)= P(Z\leq 1.1) -P(Z\leq -1.1) = 0.864-0.136= 0.728

b) P(X \leq 30)= P(X

And using the z score we got:

P(X

c) P(X

And if we use the continuity correction we got:

P(X

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Continuity correction means that we need to add and subtract 0.5 before standardizing the value specified.

Part a

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

X \sim N(25,5)  

Where \mu=25 and \sigma=5

Part a

For this case we want to find this probability:

P(20 \leq X \leq 30) = P(20-0.5 \leq X \leq 30+0.5)

And if we use the z score given by:

z =\frac{x-\mu}{\sigma}

We got this:

P(19.5 \leq X \leq 30.5) = P(\frac{19.5-25}{5} \leq Z \leq \frac{30.5 -25}{5})=P(-1.1 \leq Z \leq 1.1)

And we can find this probability like this:

P(-1.1 \leq Z \leq 1.1)= P(Z\leq 1.1) -P(Z\leq -1.1) = 0.864-0.136= 0.728

Part b

For this case we want this probability:

P(X \leq 30)

And if we use the continuity correction we got:

P(X \leq 30)= P(X

And using the z score we got:

P(X

Part c

For this case we want this probability:

P(X

And if we use the continuity correction we got:

P(X

3 0
3 years ago
A full moon occurs about every 30 days . If the last full moon occurred on a Friday, how many days will pass before a full moon
pentagon [3]
The answer is 30 days until it appears on a Friday again. In order to see the full moon again, we have to go through the entire cycle. So, it will be about 30 days before we would have seen another one. 
7 0
3 years ago
In a flower garden, there are 4 tulips for every 9 daisies. If there are 24 tulips, how many daisies are there?
Paul [167]

Answer:

54 daisies

Step-by-step explanation:

4 tulips : 9 daisies

24 tulips : ?

(24 × 9) ÷ 4 = 54 daises

3 0
3 years ago
Other questions:
  • What is the value of a when we rewrite (6/17)^9 x as a^x
    8·1 answer
  • The tank contains 896 gallons of water. The water must be shared equally among 112 persons. Each person should recelve how many
    9·1 answer
  • 6 plus 6 plus 6 time 2 equals?
    13·2 answers
  • Small scooters cost £80 and large scooters cost £130. A school buys few scooters for the playground for £1000. How many of the s
    15·1 answer
  • Crons
    15·1 answer
  • 2/3x − 1/5x = x −1 equals what? I'm confused on this
    14·1 answer
  • 2. PLZZZ help math (O_O)
    7·1 answer
  • HELP ON A TIMER <br><br> WHAT IS THE x-intercept of the graph?
    13·1 answer
  • Question
    10·1 answer
  • Trains Two trains, Train A and Train B, weigh a total of 265 tons. Train A is heavier than Train B. The
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!