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
ArbitrLikvidat [17]
3 years ago
6

Can someone plz solve for A&B? Plz and if you do thank you so much :)

Mathematics
1 answer:
Anna71 [15]3 years ago
3 0

Answer:

Part a-

area= 35

perimeter= 31

part b-

area= 25

perimeter= 18

Step-by-step explanation:

to find the area of a triangle you multiply 1/2Bh

so for part A:

A= \frac{1}{2} (10)(7) (honestly, you can just input the whole equation into the calculator)

A=(5)(7)

A= 35

and for part B:

A= \frac{1}{2}(8.34)(6)

A= (4.17)(6)

A=25.02 (or just 25)

THEN, to find the perimeter you add up all of the sides

so for part A:

P= 14 + 10 + 7 = 31

and for part B:

P= 4 \frac{1}{3} + 8 \frac{1}{3}  + 5 \frac{1}{3} = 17 \frac{3}{3} or 18

I hope this helps :)

You might be interested in
1. Find the unit rate for lessons at Sit and Stay School. Show your work. Write your answer in the space below.
timofeeve [1]

Answer: $8

Step-by-step explanation:

96/12=8/1

4 0
3 years ago
Read 2 more answers
Help answer please help
Eddi Din [679]
I think the answer is frequency table, but I’m not sure.. make your best guess or try asking other people.
5 0
3 years ago
Read 2 more answers
Which equation has the correct sign on the product?
Alla [95]

Answer:

B.

Step-by-step explanation:

A positive times a negative number equals a negative number, but a negative times a negative equals a positive number

4 0
3 years ago
Read 2 more answers
Solve for Y I need help please
muminat
Bring y to one side and the rest to the other switching the positives to negative then you’ll get Y=114
6 0
3 years ago
Read 2 more answers
There are 2,000 eligible voters in a precinct. A total of 500 voters are randomly selected and asked whether they plan to vote f
Ann [662]

Answer:

0.7 - 2.58 \sqrt{\frac{0.7(1-0.7)}{500}}=0.647

0.7 + 2.58 \sqrt{\frac{0.7(1-0.7)}{500}}=0.753

And the 99% confidence interval would be given (0.647;0.753).

So the correct answer would be:

a. 0.647 and 0.753

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

The estimated population proportion for this case is:

\hat p = \frac{350}{500}=0.7

The confidence interval would be given by this formula

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

For the 99% confidence interval the value of \alpha=1-0.99=0.01 and \alpha/2=0.005, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=2.58

And replacing into the confidence interval formula we got:

0.7 - 2.58 \sqrt{\frac{0.7(1-0.7)}{500}}=0.647

0.7 + 2.58 \sqrt{\frac{0.7(1-0.7)}{500}}=0.753

And the 99% confidence interval would be given (0.647;0.753).

So the correct answer would be:

a. 0.647 and 0.753

7 0
3 years ago
Other questions:
  • 2007 divided by j = 223
    6·1 answer
  • Answer please.. Thank you in advance
    14·1 answer
  • Write the standard form of the equation of a circle with a radius of 2 and center at (4,-5)
    10·2 answers
  • What is the approximate value of<br> 14 to the nearest tenth?
    13·1 answer
  • Ava has 55 quarts of potting mix. She uses 1 of the potting mix in the wall planter on her
    6·2 answers
  • When Kim works 40 hours in a week, she earns $560. If she works only 35 hours, how much should she expect to earn?
    13·2 answers
  • Dude I don’t even know anymore
    13·1 answer
  • Mary read 2/5 of a book in 15 minutes. How much of the book can she read per hour? book per hour.​
    7·2 answers
  • Euler's formula, V − E + F = 2 relates the number of vertices V, the number of edges E, and the number of faces F of a polyhedro
    5·1 answer
  • What strategies do you use when solving for an unknown number​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!