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
fredd [130]
2 years ago
13

I need help on this one and please only answer if you know not to ask a question. Plz explain how you got your answer

Mathematics
1 answer:
VashaNatasha [74]2 years ago
4 0

Answer:

Answer A (or C. Both were very close)

Step-by-step explanation:

I don't know what "please only answer if you know not to ask a question" means.

Since ∠ADB is 90° and ∠BAD is 36°, then ∠ABD is 180-90-36 or 54°.

You could just try using the Pythagorean Theorem for all the answer choices.

(a²+b²=c² where a and b are the legs and c is the hypotenuse)

A.

11²+8²=c²

121+64=c²

c=\sqrt{185}

c ≈ 13.60

B.

I don't need to prove this because the shorter legs' sum is greater than the hypotenuse and will not make a triangle.

C.

15.1²+11²=c²

288.01+121=c²

c=\sqrt{349.01}

c ≈ 18.68 ≈ 18.7

D.

I don't need to prove this because the shorter legs' sum is greater than the hypotenuse and will not make a triangle.

I think answer A is the best since it rounds closer to the answer in the row. It was pretty close between C and A so you can decide if you'd like but I suggest A because it's a closer rounding.

You might be interested in
The manager wants to advertise that anybody who isn't served within a certain number of minutes gets a free hamburger. But she d
aksik [14]

Answer:

The number of minutes advertisement should use is found.

x ≅ 12 mins

Step-by-step explanation:

(MISSING PART OF THE QUESTION: AVERAGE WAITING TIME = 2.5 MINUTES)

<h3 /><h3>Step 1</h3>

For such problems, we can use probability density function, in which probability is found out by taking integral of a function across an interval.

Probability Density Function is given by:

f(t)=\left \{ {{0 ,\-t

Consider the second function:

f(t)=\frac{e^{-t/\mu}}{\mu}\\

Where Average waiting time = μ = 2.5

The function f(t) becomes

f(t)=0.4e^{-0.4t}

<h3>Step 2</h3>

The manager wants to give free hamburgers to only 1% of her costumers, which means that probability of a costumer getting a free hamburger is 0.01

The probability that a costumer has to wait for more than x minutes is:

\int\limits^\infty_x {f(t)} \, dt= \int\limits^\infty_x {}0.4e^{-0.4t}dt

which is equal to 0.01

<h3>Step 3</h3>

Solve the equation for x

\int\limits^{\infty}_x {0.4e^{-0.4t}} \, dt =0.01\\\\\frac{0.4e^{-0.4t}}{-0.4}=0.01\\\\-e^{-0.4t} |^\infty_x =0.01\\\\e^{-0.4x}=0.01

Take natural log on both sides

ln (e^{-0.4x})=ln(0.01)\\-0.4x=ln(0.01)\\-0.4x=-4.61\\x= 11.53

<h3>Results</h3>

The costumer has to wait x = 11.53 mins ≅ 12 mins to get a free hamburger

3 0
2 years ago
Answer:the largest angle has a measure of _____degrees.
ratelena [41]

Answer:

depends mostly it'll b 180 degress

Step-by-step explanation:

4 0
2 years ago
Allison wants to ride her bicycle 60 miles this week. She has already ridden 12 miles. If she rides for 6 more days, what is the
anastassius [24]

Answer:

8 miles a day

Step-by-step explanation:

First you have to subtract the amount of miles she had already gone.

60 - 12 = 48

Next you have to divide by the remaining amount of days (6 days).

48/6 = 8

7 0
1 year ago
You stuffed 108 envelopes in 45 minutes. At this rate, how many envelopes can you stuff in 2 hours?
Anuta_ua [19.1K]

Answer:

288

Step-by-step explanation:


8 0
3 years ago
HELP! ASAP. 12 POINTS.
Alinara [238K]
I think the answer is c

7 0
3 years ago
Other questions:
  • -5x + 6y = -3 6x - 6y = 12 what is the y and x intercept
    8·1 answer
  • Suppose you ride your bicycle to the library traveling at 0.50km/min. It takes you 25 minutes to get to the library. How far did
    11·1 answer
  • I am thinking of a number that has a four in the hundreds place and a two and the one's place. When you round it to the nearest
    6·1 answer
  • Which expression is equivalent to this polynomial expression? (2x2-3y2)(4x4+6x2y2+9y4)
    5·1 answer
  • Given: g(x) = x-4 and<br> h(x) = 2x-8.<br> What are the restrictions on the domain of gh?
    7·1 answer
  • If you awnser this correctly I will give you more points​
    12·2 answers
  • PLEASE HELP ME.............
    7·1 answer
  • Carmine paid an electrician x dollars per hour for a 5-hour job plus $70 for parts. The total charge was $320. Which equation ca
    11·1 answer
  • The bottom of a cylinder has a circumference of about 60 in. What is the approximate diameter of the cylinder? Round to the near
    6·1 answer
  • Pleas help with the khan academy question
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!