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
Paha777 [63]
3 years ago
5

a rectangle has a length of 45 feet and height of 20 yards. What is the perimeter of this rectangle in feet

Mathematics
2 answers:
konstantin123 [22]3 years ago
5 0

Answer:

<h2><u>Given </u><u>:</u><u>-</u></h2>

Length = 45 yard

Height = 20 yards

<h2><u>To </u><u>Find</u><u> </u><u>:</u><u>-</u></h2>

Perimeter

<h2><u>Solution</u><u> </u><u>:</u><u>-</u></h2>

We know that

\: perimeter = 2(l + b)

» Perimeter = 2(45 + 20)

» Perimeter = 2(65)

» Perimeter = 130 yards

laiz [17]3 years ago
3 0

Perimeter is the distance around the rectangle and the formula is 2 x length + 2 x height.

Perimeter = 2 x45 + 2x20

Perimeter = 90 + 40

Perimeter = 130 yards

You might be interested in
The amount of calories consumed by customers at the Chinese buffet is normally distributed with mean 2617 and standard deviation
Eduardwww [97]

Answer:

a) N(2617, 586)

b) 0.3613 = 36.13% probability that the customer consumes less than 2409 calories.

c) 0.4013 = 40.13% of the customers consume over 2764 calories

d) 3981 calories.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 2617, \sigma = 586

a. What is the distribution of X?

Here we first place the mean, then the standard deviation.

N(2617, 586)

b. Find the probability that the customer consumes less than 2409 calories.

This is the pvalue of Z when X = 2409. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{2409 - 2617}{586}

Z = -0.355

Z = -0.355 has a pvalue of 0.3613

0.3613 = 36.13% probability that the customer consumes less than 2409 calories.

c. What proportion of the customers consume over 2764 calories?

This is 1 subtracted by the pvalue of Z when X = 2764. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{2764 - 2617}{586}

Z = 0.25

Z = 0.25 has a pvalue of 0.5987

1 - 0.5987 = 0.4013

0.4013 = 40.13% of the customers consume over 2764 calories

d. The Piggy award will given out to the 1% of customers who consume the most calories. What is the fewest number of calories a person must consume to receive the Piggy award?

Top 1%, so the 100-1 = 99th percentile.

The 99th percentile is the value of X when Z has a pvalue of 0.99. So it is X when Z = 2.327. So

Z = \frac{X - \mu}{\sigma}

2.327 = \frac{X - 2617}{586}

X - 2617 = 2.327*586

X = 3980.6

Rounding to the nearest calorie, 3981 calories.

7 0
2 years ago
Suppose that the demand equation for a certain item is 1p+1x2−160=0. evaluate the elasticity at 65:
bekas [8.4K]
Price elasticity is defined as \frac{\Delta(quantity)}{\Delta(price)}.

Here, the question has omitted to define variables, so we will ASSUME
p=price
x=variable,
and we're given
p+x^2-160=0

We calculate
\delta{x}/\delta{p} by implicit differentiation with respect to p:
1+2x (dx/dp)=0
=>
E(x)=(dx/dp)=-1/(2x)

Therefore the price elasticity at x=65 is
E(65)=1/(2*65) =-1/130 (approximately -0.00769)

4 0
2 years ago
The sales tax on a $799 tv is 8%. How much in dollars is the sales tax? What is the total price of the tv, including the sales t
andreyandreev [35.5K]

Answer:

The total price is $862.92, the tax is $63.92.

Step-by-step explanation:

The sales tax is an additional amount added on top of the total price and is usually represented by a percent. to translate the percent to decimals we move the decimal two places to the left making 8% 0.08. To find the tax we multiply the total by that amount. 799*0.08=63.92. To find the total we can add the tax to the original amount or we can multiply the original by 1.08 instead, to keep the principal and add on.

3 0
3 years ago
Read 2 more answers
i need help writing (4x 100) + (9 x 10) + (7 x 1) + [5x10] + [6x (1/100))+ [3x (1/1000)] in standard form using the place value
Sveta_85 [38]

Answer:

497.563

Step-by-step explanation:

(4x 100) + (9 x 10) + (7 x 1) + [5x(1/10)] + [6x (1/100))+ [3x (1/1000)]

<u>Place value chart</u> :

\begin{matrix}\text{hundreds} &\text{tens} &\text{ones} &&\text{tenths} &\text{hundredths} &\text{thousandths} \\ 4&9&7&.&5&6&3\end{matrix}

8 0
1 year ago
What shape has 6 sides?
zaharov [31]
A hexagon has 6 sides. Hope this helps!
4 0
3 years ago
Other questions:
  • Could someone please help me with this problem and possibly explain if you can? (Will give up brainiest answer if correct, if po
    10·1 answer
  • Kobe, A'mari and DJ are raising money for their football team to take a trip to San Diego. Kobe collected $18.50 more than A'mar
    12·2 answers
  • What is a bird favorite type math
    14·1 answer
  • Can anyone help? Will give brainlist if anyone answers.. 10 points... 
    5·1 answer
  • Evaluate the expression for s=9<br> 72/s
    9·1 answer
  • Which are the soultions of the quadratic equation? x^2=7x+4
    5·1 answer
  • Asap
    15·1 answer
  • Hi can someone please help me on my homework
    11·1 answer
  • 76 % of 150 calculate this
    13·1 answer
  • Dedi had a combination lock.To open the lock he started at 37.He made 3 half turns clockwise and 3 quarter turns anticlockwise
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!