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
nekit [7.7K]
3 years ago
14

A right triangle has one angle that measure 23o. The adjacent leg measures 27.6 cm and the hypotenuse measures 30 cm. What is th

e approximate area of the triangle? Round to the nearest tenth. Area of a triangle = One-halfbh 68.7 cm2 161.8 cm2 381.3 cm2 450.0 cm2
Mathematics
1 answer:
Oliga [24]3 years ago
6 0

Answer:

  161.8 cm²

Step-by-step explanation:

The given formula works if you have both legs of the triangle. Using the given information, a better formula is ...

  A = (1/2)ab·sin(C) . . . . C is the angle between sides 'a' and 'b'

  A = (1/2)(27.6 cm)(30 cm)sin(23°) ≈ 161.8 cm²

You might be interested in
I WILL GIVE BRAINLIEST
slamgirl [31]
C. 71%
It is really .708 but just round it up to .71.
4 0
3 years ago
Read 2 more answers
I need help with this problem
castortr0y [4]

Answer:

c. 106 million

Step-by-step explanation:

A = number of people in the sample that use public transportation 5 or more days per week

A = 2,067,153

B = number of people total in the sample

B = 4,295,280

C = proportion of those in the sample that use public transportation 5 or more days per week

C = A/B

C = (2,067,153)/(4,295,280)

C = 0.48126 approximately

Multiply this value by the figure 220 million to compute the estimated number of people who use public transportation 5 or more days per week

C*(220 million) = 0.48126*(220 million) = (0.48126*220) million = 105.8772 million = 106 million

6 0
3 years ago
Pete is a politician. He claims that 32% of the households in his district have total household incomes below the poverty level.
victus00 [196]

Answer:

z=\frac{0.3867 -0.32}{\sqrt{\frac{0.32(1-0.32)}{225}}}=2.145  

For a bilateral test the p value would be:  

p_v =2*P(z>2.145)=0.0320  

Step-by-step explanation:

Information given

n=225 represent the sample selected

X=87 represent the households with incomes below the poverty level

\hat p=\frac{87}{225}=0.3867 estimated proportion of households with incomes below the poverty level

p_o=0.32 is the value that we want to test

z would represent the statistic

p_v represent the p value

System of hypothesis

We want to check if the true proportion is equal to 0.32 or not.:  

Null hypothesis:p=0.32  

Alternative hypothesis:p \neq 0.32  

The statistic is given bY:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing we got:

z=\frac{0.3867 -0.32}{\sqrt{\frac{0.32(1-0.32)}{225}}}=2.145  

For a bilateral test the p value would be:  

p_v =2*P(z>2.145)=0.0320  

4 0
3 years ago
If 12000 people voted in the election,how many people were from 50 to 64 years old
inessss [21]
Assuming that this question is based on a graph, and that this graph tells us that people 50-64 years make up 35% of all the voters, then it would mean that
35%of 12000=\frac{35}{100} *12000=35*120=4200

So, assuming that people at age 50-64 make up 35% of the voters, then 4200 of them voted.
7 0
3 years ago
If you bought a cookie for 80¢ and paid for it with a 5 dollar bill, how much change would you receive?
Inessa [10]

Answer:

4 dollars and 20 cents

Step-by-step explanation:

5.00-.80=4.20

5 0
3 years ago
Read 2 more answers
Other questions:
  • A sack of potato with 14 lbs. 9 oz. After Wendy makes potato salad for a picnic does sac wait 9 lbs. 14 oz. What is the week of
    13·1 answer
  • . A circular window has a diameter of 40 centimeters. What is the circumference of the window? Use 3.14 for π π 251.2 cm
    5·1 answer
  • PLEASE HELP!!!!!!<br><br>can you solve and explain 1-4
    13·1 answer
  • Help!!!!!!!!!!!!!!!!
    9·1 answer
  • Ms. Edwards is redecorating her office. She has a choice of 8 colors of paint, 5 kinds of curtains, and 6 colors of carpet. How
    11·1 answer
  • Helpppppp please ASAPpppppppppppppp!!!!!!!!!!!!!!!!!!
    14·1 answer
  • The cost, in dollars, of manufacturing x microwaves is 6,000 + 300x dollars. The amount received when selling these x microwaves
    10·1 answer
  • Given that O is the center of the circle, find the measure of angle c.
    11·1 answer
  • 4 – (3 – 5) =<br><br> Possible Answers:<br> A. -4<br> B. -2<br> C. 6<br> D. 12
    7·2 answers
  • What expression is the opposite of (c - d)?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!