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3 years ago

What is triangle and type of triangle

Mathematics

1 answer:

ch4aika [34]3 years ago

4 0

Answer:

Step-by-step explanation:

Triangle is a polygon that has 3 sides.

1)Equilateral triangle means all the three sides has equal measurements.

2)Isosceles triangle means two sides has equal measurements.

3)Scalene triangle means all the three sides has different measurements

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The ratio of 6 kg to 600 gram is

zloy xaker [14]

Answer:

10:1

Step-by-step explanation:

as 6 kg = 6000g

so 6000g /600g

= 10 : 1. { 10 /1)

7 0

3 years ago

It has been suggested that night shift-workers show more variability in their output levels than day workers (σ2N > σ2D). Bel

Murljashka [212]

Answer:

Calculated |t |= 7.72 > 2.1314 at 0.05 level of significance

Null hypothesis is rejected

The night shift-workers show more variability in their output levels are greater than day workers

Step-by-step explanation:

Step(i):-

Given first sample size n₁ = 9

Given mean of the first sample x₁⁻ = 520

Given sample variance of the first sample'S²₁' = = 38

Standard deviation of the first sample 'S₁' = √38 =6.16

Given second sample size n₂ = 8

Given mean of the second sample x₂⁻ = 540

Given sample variance of the second sample ( 'S²₂' = 20

Standard deviation of the second sample 'S₂' = √20 = 4.4712

Step(ii):-

Null hypothesis :H₀: σ²₁ =σ²₂

Alternative Hypothesis:H₁: σ²₁ > σ²₂

Test statistic

$t = \frac{x^{-} _{1} - x^{-} _{2} }{\sqrt{\frac{S^2_{1} }{n_{1} }+\frac{S^2_{2} }{n_{2} } } }$

$t = \frac{520 - 540 }{\sqrt{\frac{38 }{9 }+\frac{20 }{8 } } }$

t = - 7.72

|t| = |- 7.72| = 7.72

Degrees of freedom

ν = n₁ + n₂ -2 = 9 +8 -2 = 15

t₀.₀₅ = 2.1314

Final answer:-

Calculated |t |= 7.72 > 2.1314 at 0.05 level of significance

Null hypothesis is rejected

The night shift-workers show more variability in their output levels are greater than day workers

4 0

3 years ago

Find the annual rate of interest. Principal = 2350=2350 rupees Period = 2=2 years Total amount = 2867=2867 rupees

Lilit [14]

Answer:

11%

Step-by-step explanation:

We have been given that

Principle = Rs 2350

Time = 2 years

Total amount = Rs 2867

Therefore, Interest earned is given by

I = Total amount - Principle

I = 2867 - 2350

I = Rs 517

Formula for simple interest is

$I=Prt\\517=2350(r)(2)\\\\r=\frac{517}{2350\times2}\\\\r=0.11\\\\r=11\%$

Therefore, annual rate of interest is 11%

7 0

4 years ago

10+(2x3)2/4x1/2 3 zzzzzzzzzzzzzzzzz

Leto [7]

Answer: 233/23

Step-by-step explanation:

6 0

3 years ago

Please help me out on this question

hram777 [196]

Answer:

18.75

divide by four because it's a square

7 0

4 years ago

Read 2 more answers

What is triangle and type of triangle​

What is triangle and type of triangle