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Arisa [49]
3 years ago
13

Which of the following lenghts the sides of a right trangle?

Mathematics
1 answer:
Blizzard [7]3 years ago
6 0
Idk what your trying to ask but a right triangle has a right angle and has all different length sides
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An electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricit
TiliK225 [7]

Answer:

atleast 385

Step-by-step explanation:

Given that an electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricity, they would like know the mean daily power usage for homes there.

Population std deviation = \sigma = 50

Sample size =n

STd error of sample mean = \frac{50}{\sqrt{n} }

Margin of error for 95% would be Critical value ( std error)

Here since population std dev is known we can use Z critical value= 1.96

1.96*\frac{50}{\sqrt{n} }19.6^2\\n>384.16

Sample size should be atleast 385

5 0
3 years ago
Calculate the area of triangle ABC with altitude BD, given A (−6, 0), B (0, 0), C (0, 6), and D (−3, 3).
nata0808 [166]

Answer:

  • 18 unit²

Step-by-step explanation:

If BD is altitude then AC is the base.

<u>The length of AC is:</u>

  • AC = \sqrt{6^2+6^2} = 6\sqrt{2}

<u>The length of BD is:</u>

  • BD = \sqrt{3^2 + 3^2} = 3\sqrt{2}

<u>The area is:</u>

  • A = 1/2bh
  • A = 1/2 * 6\sqrt{2} *3\sqrt{2} = 18 unit²
4 0
3 years ago
Read 2 more answers
What is the slope of the line that passes through (-2, 7) and (4, 9)
telo118 [61]

Answer: The slope is 1/3

Step-by-step explanation:

m = y2-y1/x2-x1

m =9-7/4+2

m=2/6

m=1/3

4 0
2 years ago
Read 2 more answers
Find the value of x and y that satisfy both equalities x/5=y/3 and 12/y=4/5 HURRY!!!!
Vika [28.1K]

x=25,y=15 Not to sure abt this answer but I think I got it

7 0
3 years ago
What's the Area of 14ft, 7ft, and 10ft
statuscvo [17]

Answer: im not shore how to answer but here is to answers: 980 ft when multiplied and 31ft when added

Step-by-step explanation:

plz mark brainlyest

5 0
2 years ago
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