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
Fynjy0 [20]
3 years ago
5

There are 8 beech trees 4 oak trees 17 cedar trees and 11 other trees

Mathematics
1 answer:
pickupchik [31]3 years ago
6 0

Answer:

1/5

Step-by-step explanation:

8 beech trees out of 40

8/40 = 1/5

You might be interested in
Help me plz tgbdsfvg
goldfiish [28.3K]

Answer:

angle 2 is 43 as the opposite side of the angle is always equal angle 1 and 3 are:

step 1

43+43=86

step 2

360-86=274

step 3

274÷4=68.5

we subtracted 86 with 360 because 360 is the sum of all the angles we then divided  the answer by 2 as we were suppose to find two angles angle 1 and 3 are opposite angles so they both will be same

      hope this information helps u :)

6 0
3 years ago
Read 2 more answers
The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.972 g and a standard deviation
zalisa [80]

Answer:

P( ¯ x < 0.929 g) = 0.1867

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, the sample means with size n of at least 30 can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 0.972, \sigma = 0.289, n = 36, s = \frac{0.289}{\sqrt{6}} = 0.0482

Assuming that the given mean and standard deviation have NOT changed, find the probability of randomly selecting 36 cigarettes with a mean of 0.929 g or less. P( ¯ x < 0.929 g) =

This is the pvalue of Z when X = 0.929. So

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{0.929 - 0.972}{0.0482}

Z = -0.89

Z = -0.89 has a pvalue of 0.1867. So

P( ¯ x < 0.929 g) = 0.1867

7 0
3 years ago
Find the indicated value. Use either half angle formulas or sum and difference formulas.
MrMuchimi
By the angle difference formula for sines, we have:

\sin 15^\circ = \sin 45^\circ \cos 30^\circ - \sin 30^\circ \cos 45^\circ = \frac{sqrt{6}}{4} - \frac{sqrt{2}}{4} = \frac{\sqrt{6} - \sqrt{2}}{4}.

By the angle sum formula for tangents, we have:

\tan 75^\circ = \frac{\tan 45^\circ + \tan 30^\circ}{1 - \tan 45^\circ \tan 30^\circ} = \frac{1+\frac{\sqrt{3}}{3}}{1 - \frac{\sqrt{3}}{3}} = \frac{3 + \sqrt{3}}{3 - \sqrt{3}}.

Rationalizing the denominator gives \frac{12+6\sqrt{3}}{6} = 2+\sqrt{3} as the final answer.
8 0
3 years ago
PLEASE HELP ASAP 20 POINTS
Evgesh-ka [11]

Answer:

1.A

2.B

Step-by-step explanation:

I hope it helps...........

3 0
3 years ago
BRAINLIEST WILL BE PICKED!
Snowcat [4.5K]
My other answer was was lacking (I also believe I should have furthermore edited it.), therefore I will attempt to explain the steps correctly this time. I don't know what exactly is requested nor what you are learning, but I suspect it would be combinations, factorials, and/or permutations, something along those lines. Firstly I figured out my answer using factorials. 

FROM: F,R,O,M. This obtains 4 letters.

4! (1 x 2 x 3 x 4)= 24 

I am unsure if this is what you are looking for though. I hope this helped a bit.

6 0
3 years ago
Other questions:
  • What is seven divide by ÷847
    9·2 answers
  • What is the relationship between the 6 in the number 7664
    15·1 answer
  • Find the difference when -3n -7 is subtracted from n+4
    7·2 answers
  • You pay $20 for 4 cups of coffee. What is theunit rate?
    9·1 answer
  • I need help with these questions from 11 to 20. I already did questions 1 through 10 with my math teacher but I'm not in school
    11·2 answers
  • Rewrite in radical form
    14·2 answers
  • Find the surface area of the regular hexagonal prism.
    5·1 answer
  • PLEASE HELP, is this graph parallel, perpendicular or neither?
    14·1 answer
  • 1. write a set of even numbers .
    12·1 answer
  • Solve the following inequality.<br> 20 &lt; 8
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!