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lorasvet [3.4K]
2 years ago
12

Help me please!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Sunny_sXe [5.5K]2 years ago
6 0

Answer:

6

Step-by-step explanation:

To find the area of a triangle you have to follow the formula 1/2 BH (One half time the base times the height) So 4 x 3 would equal 12. Then divide it by 2 to get 6.

Hope this helps :)

Alex17521 [72]2 years ago
3 0

Answer:

6 square centimeters

Step-by-step explanation:

The formula for area of a triangle is 1/2bh with b being the base and h being the height. The base and height here are 4 and 3 so multiply them to get 12 and then multiply that by 1/2 to get 6cm^2

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Given: ∠ A = ∠ C, E is the midpoint of AC<br> Prove: △AEB △CED
bija089 [108]

Answer:

Step-by-step explanation:

3.AE = CE                   E is the midpoint of AC

4. ∠AEB = ∠CED        Vertically opposite angles are equal

5. ΔAEB = ΔCED       ASA congruence

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2 years ago
The island has 600 bikes and 900 people. What is the bike to person ratio?
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Answer:

2:3 (2 bikes for every 3 people)

Step-by-step explanation:

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Please help with #22! You don’t have to fully explain.
trasher [3.6K]
The answer to the first part is 3 1/2 and the answer to the second question is 2/7
3 0
3 years ago
A large school district in southern California asked all of its eighth-graders to measure the length of their right foot at the
Ber [7]

Answer:

The probability of the sample mean foot length less than 23 cm is 0.120

Step-by-step explanation:

* Lets explain the information in the problem

- The eighth-graders asked to measure the length of their right foot at

  the beginning of the school year, as part of a science project

- The foot length is approximately Normally distributed, with a mean of

 23.4 cm

∴ μ = 23.4 cm

- The standard deviation of 1.7

∴ σ = 1.7 cm

- 25 eighth-graders from this population are randomly selected

∴ n  = 25

- To find the probability of the sample mean foot length less than 23

∴ The sample mean x = 23, find the standard deviation σx

- The rule to find σx is σx = σ/√n

∵ σ = 1.7 and n = 25

∴ σx = 1.7/√25 = 1.7/5 = 0.34

- Now lets find the z-score using the rule z-score = (x - μ)/σx

∵ x = 23 , μ = 23.4 , σx = 0.34

∴ z-score = (23 - 23.4)/0.34 = -1.17647 ≅ -1.18

- Use the table of the normal distribution to find P(x < 23)

- We will search in the raw of -1.1 and look to the column of 0.08

∴ P(X < 23) = 0.119 ≅ 0.120

* The probability of the sample mean foot length less than 23 cm is 0.120

4 0
3 years ago
How do u do this what’s the answer?
Kobotan [32]
Okay! the answer is 24.
7 0
3 years ago
Read 2 more answers
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