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
NeX [460]
3 years ago
5

Please help me fast i am giving 14 points for 5 questions. (Geometry) Thank you so much!

Mathematics
1 answer:
algol133 years ago
6 0
1 ) Area of the rectangle:
A = L x W
L = √(2² + 2²) = √8 = 2√2
W = √(6² + 6²) = √72 = 6√2
A = 2√2  x  6√2 = 24 units²
2 ) Area of a triangle:
RQ = 2 + 4 = 6 units
h = 4 units
A = ( 6 * 4 ) / 2 = 12 units²
3 ) The perimeter of Δ ABC:
AB = √(3² + 4²) = √25 = 5 units
BC = √(1² + 1²) = √2 = 1.4 units
AC = √(3² + 4²) = √25 = 5 units
P = 5 + 1.4 + 5 = 11.4 units
4 ) Area of the figure ( approx.):
A ≈ ( 8 * 8) - 6.25 - 8 - 2.5 ≈ 47.25
Answer: C ) 50 ft²
5 ) Area under the curve:
A ≈ 0.5 * 3 + 0.5 * 3.5 + 0.5 * 4 + 0.5 * 4.5 + 0.5 * 5 + 0.5 * 4.5 + 0.5 * 4 +
 + 0.5 * 3 ≈ 0.5 * 31.5 ≈ 15.6
Answer: B ) 15 units²
You might be interested in
A set of data with a mean of 53, and a standard deviation of 6.2 is normally distributed. Find the value of a data point that is
Evgesh-ka [11]

The value of a data point that is -2 standard deviations from the mean

so, 40.6 to 65.4.

<h3>What is the empirical rule?</h3>

According to the empirical rule, also known as the 68-95-99.7 rule, the percentage of values that lie within an interval with 68%, 95%, and 99.7% of the values lies within one, two, or three standard deviations of the mean of the distribution.

P(\mu - \sigma < X < \mu + \sigma)  \approx 68\%\\P(\mu - 2\sigma < X < \mu + 2\sigma)  \approx 95\%\\P(\mu - 3\sigma < X < \mu + 3\sigma)  \approx 99.7\%

From the empirical rule, we know that for 95% we are in 2 standard deviations of the mean. so:

= 53- 6.2- 6.2

= 40.6

The value of a data point that is -2 standard deviations from the mean

53 + 6.2 + 6.2

= 65.4

Learn more about the empirical rule here:

brainly.com/question/13676793

#SPJ2

7 0
2 years ago
HELP! HAVE TO GET THIS CORRECTION DONE TODAY! 25 Points! Correct gets Brainliest!
mina [271]

Answer:

19.2 but if u cant us decimals take out 2

Step-by-step explanation:

you time 8 by 12 and then divide it by 5

7 0
2 years ago
Read 2 more answers
Which container holds more, a half-gallon milk jug or a 2-liter juice bottle
crimeas [40]

Answer:

1 gallon=3.79 liters  2 liter juice bottle would hold more

Step-by-step explanation:

5 0
2 years ago
10.1022 rounded to the nearest hundredth​
ivanzaharov [21]

Answer:

10.10

Step-by-step explanation:

4 0
3 years ago
6cm
Daniel [21]

Answer:

26cm

Step-by-step explanation:

P= all sides

p=6+3+2+4+2+3+6

should get 26 then add the correct symbol...so put 26 <em><u>cm</u></em>

8 0
3 years ago
Other questions:
  • A cat breeder suspects her kittens weigh more than the larger population of kittens. A random sample of 25 of her kittens were w
    10·1 answer
  • A round above-ground swimming pool has a diameter of 15 ft and a height of 4.5 ft. What is the volume of the swimming pool?
    14·1 answer
  • there were 20 girls and 10 boys on the swim team last summer this summer this number of girls decreased by 30% and the number of
    7·2 answers
  • A fossil was analyzed and determined to have a carbon-14 level that is 80 % that of living organisms. the half-life of c-14 is 5
    6·1 answer
  • Elizabeth brought a box of donuts to share. There are​ two-dozen (24) donuts in the​ box, all identical in​ size, shape, and col
    10·1 answer
  • We paid $40 for 8 Hamburgers how much would we pay for 24 hamburgers
    12·2 answers
  • There are eight pints of lemonade at a party. An equal amount of lemonade is poured into each of fifteen glasses. Which of the f
    7·1 answer
  • A classroom board is 48 inches wide and 32 inches tall.
    13·1 answer
  • Do you guys support animal testing? (putting drug into animals to see how it affects them)
    12·1 answer
  • What is the next number in the following series of numbers? 1, 4, 8, 13, 19, ___
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!