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
iris [78.8K]
3 years ago
15

Only if you know the answer please respond

Mathematics
2 answers:
natali 33 [55]3 years ago
5 0
The area of a triangle is 0.5bh
Here, it is 0.5(2.2)(3.8)
The area is 4.18. The answer is A.
Charra [1.4K]3 years ago
3 0
To solve do the base (2.2) multiply by the height (3.8) and then divide the answer I get from that by 2
You might be interested in
What is the approximate area of a circle with a diameter of 50 centimeters? use π ≈ 3.14. 87.9 square centimeters 379.9 square c
zheka24 [161]
A=πr^2
The answer is 1962.5
6 0
3 years ago
The volume of a cylinder closed at one end is 1056cm³. If it's height is 21cm Find it's (I) tatal surface area​
Elodia [21]

Answer:

is this answer correct?

let me know in comment section below!

Step-by-step explanation:

hope you liked it!

3 0
2 years ago
An elementary school class ran 1 mile in an average of 11 minutes with a standard deviation of 3 minutes. Rachel, a student in t
Natali5045456 [20]

Answer:

a) Kenji's time had a lower z-score, which means that he is better compared to other runners on his level, and better to his peers compared to Nedda.

b) Rachel, because her time had the lowest z-score.

Step-by-step explanation:

Z-score:

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.

In this question:

The lower the time, the better the runner is. So whoever's time has a lower z-score is a better runner. So initially, we find the z-score of each student's time.

An elementary school class ran 1 mile in an average of 11 minutes with a standard deviation of 3 minutes. Rachel, a student in the class, ran 1 mile in 8 minutes.

This means that for Rachel's time, we have that X = 8, \mu = 11, \sigma = 3. So

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

Z = \frac{8 - 11}{3}

Z = -1

A junior high school class ran 1 mile in an average of 9 minutes, with a standard deviation of 2 minutes. Kenji, a student in the class, ran 1 mile in 8.5 minutes.

This means that for Kenji's time, we have that X = 8.5, \mu = 9, \sigma = 2. So

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

Z = \frac{8.5 - 9}{2}

Z = -0.25

A high school class ran 1 mile in an average of 7 minutes with a standard deviation of 4 minutes. Nedda, a student in the class, ran 1 mile in 8 minutes.

This means that for Nedda's time, we have that X = 8, \mu = 7, \sigma = 4. So

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

Z = \frac{8 - 7}{4}

Z = 0.25

(a) Why is Kenji considered a better runner than Nedda, even though Nedda ran faster than he?

Kenji's time had a lower z-score, which means that he is better compared to other runners on his level, and better to his peers compared to Nedda.

(b) Who is the fastest runner with respect to his or her class? Explain why

Rachel, because her time had the lowest z-score.

8 0
3 years ago
If f(a) = 3a – a2, which of the following are not true statements?
tangare [24]
F(-1)=2 and f(0)=3 are the answers that are not true
7 0
3 years ago
Read 2 more answers
I'VE ASKED THIS THREE TIMES AND GOTTEN SARCASTIC ANSWERS, PLEASE HELP, BRAINLIEST
zloy xaker [14]

Answer:

Question 1) 2x − y = -6

Question 2) (-1, 7)

6 0
2 years ago
Read 2 more answers
Other questions:
  • What's the simplified formof ×-1+4+7×-3​
    5·1 answer
  • Determine the quotient of 1 3/4 divide by 2/5
    11·2 answers
  • What is the solution to the system of equations y = -x - 5 and y = 2x + 4
    13·1 answer
  • Diego’s family car holds 14 gallons of fuel. Each day the car uses 0.6 gallons of fuel. A warning light comes on when the remain
    14·1 answer
  • Describe in detail how to simplify fractions
    6·2 answers
  • Please help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
    6·1 answer
  • Which sentence is true?
    8·1 answer
  • SOLVE. <br>1/5x=-10<br><img src="https://tex.z-dn.net/?f=1%20%5Cdiv%205x%20%3D%20%20-%2010" id="TexFormula1" title="1 \div 5x =
    13·1 answer
  • Max correctly solved this inequality.
    6·2 answers
  • Translate each equation. Do not solve.<br> The quotient of a number increased by 4 and -3 is 15
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!