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3 years ago

How is an equilateral triangle different from an isosceles triangle?

Mathematics

2 answers:

Nimfa-mama [501]3 years ago

8 0

 Equilateral triangle is different from isosceles triangle bcoz in equilateral triangle all the sides are equal but in isosceles triangle only two sides are equal.

<h2>Look at the above attached picture. </h2>

Hope this will help u and make u understand.

ZanzabumX [31]3 years ago

5 0

Answer:

In an equilateral triangle , all the sides and angles are of equal length. In an isosceles triangle , 2 of the sides are equal and 2 angles are equal.

Step-by-step explanation:

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A recent study focused on the number of times men and women send a Twitter message in a day. The information is summarized below

jok3333 [9.3K]

Answer:

The value of the test statistic = 2.58

Test statistic Z = - 4.805

|Z| = 4.805 > 2.58

Null hypothesis is rejected The value of the test statistic = 2.58

There is significant difference between in the mean number of times men and women send a Twitter message in a day

Step-by-step explanation:

Step(i):-

Sample size of men n₁ = 25

mean of the first sample x₁⁻ = 20

Standard deviation of the first sample σ₁ = 5

Sample size of women n₂ = 30

mean of the second sample x₂⁻ = 30

Standard deviation of the first sample σ₂ = 10

Level of significance ∝= 0.01

Step(ii):-

Null Hypothesis : H₀: There is no significant difference between in the mean number of times men and women send a Twitter message in a day

Alternative Hypothesis :H₁:There is significant difference between in the mean number of times men and women send a Twitter message in a day

Test statistic

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

$Z = \frac{20 - 30 }{\sqrt{\frac{(5)^{2} }{25 }+\frac{ (10)^{2} }{ 30} } }$

Z = $\frac{-10}{2.081} = - 4.805$

The value of the test statistic = 2.58 C

|Z| = 4.805 > 2.58

Null hypothesis is rejected The value of the test statistic = 2.58

Conclusion:-

There is significant difference between in the mean number of times men and women send a Twitter message in a day

7 0

3 years ago

If the gas station is 1 mile away, and my dad's car goes at an average speed of 40 miles per hour, why has it been 14 years and

alekssr [168]

because he doesn't love you

6 0

3 years ago

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WHO EVEN ANSWERS FIRST WILL BE MARKED BRAINLIEST

blagie [28]

Answer:

it's -6 4/9 so B

4 0

3 years ago

Rounding decimals 32.60

UNO [17]

Well, assuming that you need to round to the nearest whole number, what is six closer to? 0, or 10? The answer is 10. Therefore, you would round up to 33. Hope this helps!

7 0

3 years ago

Read 2 more answers

Pls help me not fail

nignag [31]

Answer:

Step-by-step explanation:

Using the Cosine rule to find AC

AC² = BC² + AB² - (2 × BC × AB × cosB )

= 18² + 12² - ( 2 × 18 × 12 × cos75° )

= 324 + 144 - 432cos75°

= 468 - 111.8