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
ollegr [7]
3 years ago
7

I need help please! this is on EDGE2020 !

Mathematics
2 answers:
irga5000 [103]3 years ago
7 0

Answer:

for every 6 triangles there are 2 rectangles

Margaret [11]3 years ago
5 0

Answer:

D

Step-by-step explanation

A. there are 6 triangles so not this

B. Only 2 rectangles

C. 6 triangles once again

D. everything matches

You might be interested in
How do you use the limit definition of the derivative to find the derivative of f(x)=1/x?
guapka [62]
Example 1. Let us start with the functionf(x) = x2. We have 




So 




which means f '(a) = 2a.

What about the derivative of f(x) = xn. Similar calculations, using the binomial expansion for (x+y)n (Pascal's Triangle), yield 




6 0
3 years ago
The blue dot is what value on the number line
Anastaziya [24]
8 and 12 are separated by 1 line, and they have a difference of 4 units, so..

count every two lines and add 4 units

this means that the blue dot is 20
5 0
3 years ago
Read 2 more answers
A Government company claims that an average light bulb lasts 270 days. A researcher randomly selects 18 bulbs for testing. The s
Fofino [41]

Answer:

31.92% probability that 18 randomly selected bulbs would have an average life of no more than 260 days

Step-by-step explanation:

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

Normal probability distribution

When the distribution is normal, we use 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 normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

In this question, we have that:

\mu = 270, \sigma = 90, n = 18, s = \frac{90}{\sqrt{18}} = 21.2

What is the probability that 18 randomly selected bulbs would have an average life of no more than 260 days?

This is the pvalue of Z when X = 260. So

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

By the Central Limit Theorem

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

Z = \frac{260 - 270}{21.2}

Z = -0.47

Z = -0.47 has a pvalue of 0.3192.

31.92% probability that 18 randomly selected bulbs would have an average life of no more than 260 days

5 0
3 years ago
https://app31.studyisland.com/userFiles/nc6line1.gif Which of the following are alternate exterior angles? A. ∠B and ∠G B. ∠E an
tatuchka [14]
<span>B. ∠E and ∠H are alternate exterior angles</span>
7 0
3 years ago
16. Is 4/9 a terminating or repeating decimal?<br> Terminating Decimal<br> Repeating Decimal
Sonbull [250]
Repeating decimal is the answer
5 0
3 years ago
Other questions:
  • A regular polygon has 15 sides. Which is a possible angle of rotational symmetry for the figure? 12° 45° 72° 90°
    13·2 answers
  • What is 1 1/25 as a decimal?
    10·2 answers
  • Question
    14·1 answer
  • What is the volume of this sphere?<br> 12pi cm^3<br> 36pi cm^3<br> 288pi cm^3<br> 864pi cm^3
    6·1 answer
  • The width of a rectangle is 4 inches less than its length.The perimeter is 112 inches. Find the length and the width of the tria
    8·1 answer
  • Surf board: $281.39 Tax Rate: 6% What is the final price of the product after a tax is applied?
    14·1 answer
  • PLS HELPP 1 MIN
    9·1 answer
  • Triangle DEF has an angle D measuring 25 degrees and an angle E
    13·1 answer
  • Whats 1+1=<br> ....................................................................................
    11·2 answers
  • Each of two computers can process bills at 160/min a newer model can process bills at 200/min after the first two computers have
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!