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
il63 [147K]
3 years ago
14

What's the area and perimeter

Mathematics
2 answers:
Lady bird [3.3K]3 years ago
8 0
Area: 68
Perimeter: 38
Mademuasel [1]3 years ago
6 0
Area means everything inside. So you would first find the area of the shape like if it was a rectangle. So do 8 times 11. Then solve for X. X=4 because 11-7=4. Then do 5x4=20. 20 is the amount of space you take off from 8x11=88 cause 88 is the area of a rectangle. This shape is not a rectangle. Your answer for area would be 68. 

 Perimeter means around the shape so add all the sides up. You already have all the lengths except for y. To solve for y, subtract 5 from 8 which equals 3. So Y=3. Next add up all the sides. So it''ll be 7+8+11+3+5+4=38.
Your answer for perimeter is 38.
You might be interested in
While shopping for​ clothes, Daniel spent ​$42 less than 3 times what Curtis spent. Daniel spent ​$21. Write and solve an equati
ratelena [41]

Answer:

$21

Step-by-step explanation:

21+42=63

x=63:3

x=$21

5 0
3 years ago
What’s 2+5 x 85?<br> Talk to me in the comments!!<br> I’m bored
neonofarm [45]

Answer:

i don know  the answer but heyyyyy

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
In early 2012, the Pew Internet and American Life Project asked a random sample of U.S. adults, "Do you ever ... use Twitter or
8090 [49]

Answer:

The confidence interval for the mean is given by the following formula:  

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

And the confidence interval is given by:

(0.123, 0.177)

And for this case the interval contains the value 0.16, so then we can conclude at 5% of significance that the true proportion is not different from 0.16

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

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 population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Solution to the problem

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by \alpha=1-0.95=0.05 and \alpha/2 =0.025. And the critical value would be given by:

z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96

The confidence interval for the mean is given by the following formula:  

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

And the confidence interval is given by:

(0.123, 0.177)

And for this case the interval contains the value 0.16, so then we can conclude at 5% of significance that the true proportion is not different from 0.16

3 0
3 years ago
Help me this question
lubasha [3.4K]

Answer:

(a) 218.6 N

(b) 97.14 N

Step-by-step explanation:

When the system is in equilibrium, the net torque on the system is zero.

AC = 1.5 m, CD = 2.3 m, DB = 5 - 1.5 - 2.3 = 1.2 m

Let the centre of gravity of plank is at G.

AG = 2.5 m, CG = 2.5 - 1.5 = 1 m, GB = 2.5 m

(a) Let the reaction at C is R and at D is R'.

R + R' = 29 x 9.8 = 284.2 N ... (1)

Take the torque about C.

29 x 9.8 x CG = R' x GD

29 x 9.8 x 1 = R' x 1.3

R' = 218.6 N

(b) Take the torque about D.

6 x 9.8 x AD = R x CD

6 x 9.8 x (1.5 + 2.3) = R x 2.3

R = 97.14 N

8 0
3 years ago
What does an increase in taxes and decrease in the money supply do to the supply and demand curves?
jok3333 [9.3K]

Answer:

The supply and demand curves will shift to the left i.e. there will be a decrease in demand and supply.

Step-by-step explanation:

First: Tax is a compulsory contribution to state revenue, levied by the government on workers' income and business profits, or added to the cost of some goods, services, and transactions.

Secondly: Money supply is the total amount of monetary assets available in an economy at a specific time.

When tax is increased, this means individuals and businesses have to contribute more to the state revenue leaving both categories with lesser income or profit i.e. lesser to spend.

In the same way, when money supply decreases, there is lesser money available to both individuals and businesses

What this implies is that demand will decrease because income has decreased. Supply will also decrease because producers will not make as much profit given the increase in tax (tax is considered cost of production).

As a result of this, the demand curve shifts to the left, the supply curve also shift to the left because both demand and supply will decrease.

8 0
3 years ago
Other questions:
  • an organic farm uses 3/7 of the land to grow potatoes and two fifths of the land to grow spinach the remaining land is used to g
    5·1 answer
  • An inequality is shown below.
    12·1 answer
  • 0.025 0.25 0.205 0.052 order smallest to biggest
    12·1 answer
  • The length of a rectangle is four times its width. If the perimeter is at most 100 centimeters, what is the greatest possible va
    6·1 answer
  • Tyler’s family is using a shipping trailer that is 5 feet tall, 4 feet wide, and 12 feet long to load boxes of apples in. Each b
    10·1 answer
  • What important was provided in the word problem?
    6·1 answer
  • Two number cubes are rolled for two separate events: Event A is the event that the sum of the numbers on both cubes is less than
    9·1 answer
  • Helppp i need answer now will give points
    5·1 answer
  • Which is the best definition for the term "segment bisector"?
    9·1 answer
  • Website: Mathswatch <br> #Problem solving
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!