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
borishaifa [10]
3 years ago
14

How to figure out answer ?

Mathematics
1 answer:
spin [16.1K]3 years ago
7 0
\sin 45=\dfrac{y}{11\sqrt6}\\
\dfrac{\sqrt2}{2}=\dfrac{y}{11\sqrt6}\\
2y=11\sqrt{12}\\
y=\dfrac{11\sqrt{12}}{2}\\\\
\tan 60=\dfrac{x}{y}\\
\tan 60=\dfrac{x}{\dfrac{11\sqrt{12}}{2}}\\
\sqrt3=\dfrac{2x}{11\sqrt{12}}\\
2x=11\sqrt{36}\\
2x=66\\
x=33 \Rightarrow D


You might be interested in
Colton wants to ride his bicycle 53.2 miles this week. He has already ridden 10 miles.
olganol [36]

Answer:

About 7 miles a day?

Step-by-step explanation:

53.2-10= 43.2

43.2 divided by 6 is  about 7.6. I’m just in middle school though :)

6 0
3 years ago
Kate walks half a mile to the library. how many yards does she walk?
Novosadov [1.4K]
880 yards.

Explanation:

In one mile, there are 1760 yards. To find half of that, divide 1760 by two.
1760 ÷ 2 = 880
5 0
3 years ago
Read 2 more answers
Making handcrafted pottery usually takes two major steps:wheel throwing and firing. The time of wheel throwing and thetime of fi
levacccp [35]

Answer:

a) P(R

And we can find this probability using the normal standard table or excel and we got:

P(z

b) P(R>110)=P(\frac{R-\mu}{\sigma}>\frac{110-\mu}{\sigma})=P(Z>\frac{110-100}{3.606})=P(Z>2.774)

And we can find this probability using the complement rule and the normal standard table or excel and we got:

P(z>2.774)=1-P(Z

Step-by-step explanation:

Previous concepts

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 Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Part a

Let X the random variable that represent the time for the step 1 and Y the time for the step 2, we define the random variable R= X+Y for the total time and the distribution for R assuming independence between X and Y is:

R \sim N(40+60 = 100,\sqrt{2^2 +3^2}= 3.606 s)  

Where \mu=65.5 and \sigma=2.6

We are interested on this probability

P(R

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{R-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(R

And we can find this probability using the normal standard table or excel and we got:

P(z

Part b

P(R>110)=P(\frac{R-\mu}{\sigma}>\frac{110-\mu}{\sigma})=P(Z>\frac{110-100}{3.606})=P(Z>2.774)

And we can find this probability using the complement rule and the normal standard table or excel and we got:

P(z>2.774)=1-P(Z

8 0
3 years ago
Read 2 more answers
How do u use pie in equation
yarga [219]
You normally use pie in equation that had the circumference or radius or diameter. !<span />
8 0
3 years ago
Read 2 more answers
Question 25 the sum of three numbers is 79 . the second number is 9 less than the first. the third number is 2 times the first.
g100num [7]
I believe the numbers are 22, 13, and 44.
4 0
3 years ago
Other questions:
  • A class is made up of 4 boys and 10 girls. Half of the boys wear glasses. A student is selected at random from the class. What i
    11·1 answer
  • What is the rate of change of the function described in the table?
    5·1 answer
  • What is the perimeter of the isosceles right triangle with hypotenuse 10?
    9·1 answer
  • What is the answer to 9x-7=-7
    11·2 answers
  • Given right triangle DEF, what is the value of tan(F)?
    15·2 answers
  • Which pairs of polygons are congruent?
    15·1 answer
  • Please help me on numbers 5-7 thanks
    6·1 answer
  • PLEASE HELP! WILL MARK BRAINLIEST IF U ANSWER CORRECTLY! IF WRONG U WONT GET IT
    9·1 answer
  • Write each fraction or mixed number as a decimal.<br> 7/8 <br><br> 7/20<br><br> 7/5<br><br> 9 29/40
    13·2 answers
  • A lumber company is making boards that are 2638.0 millimeters tall. If the boards are too long they must be trimmed, and if the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!