The triangle has three acute angles, so it is an acute triangle. The triangle has two congruent sides, so, it is an isosceles triangle. It is an acute isosceles triangle.

Step-by-step explanation:

6 0

3 years ago

Who was Novia scotias reform leader

qaws [65]

Step-by-step explanation:

Their leaders were Charles Tupper and Adams george Archibald

7 0

3 years ago

A manufacturing plant uses light bulbs whose life spans are normally distributed, with mean and standard deviation equal to 500

meriva

Answer:

602.50 hours

Step-by-step explanation:

Given that a manufacturing plant uses light bulbs whose life spans are normally distributed, with mean and standard deviation equal to 500 and 50 hours,

It was decided to replace the bulbs so that no more than 2% of the bulbs to burn out between replacement periods

i.e. we have to construct 98% confidence interval right tailed to get this.

Z value is 2.05 for this (Upper tailed 0.98 probability)

Hence margin of error $= 2.05 (std dev)\\=2.05(50)\\= 102.50$

The upper bound for this would be

$500+102.50 =602.50$

So to keep below 2% the bulbs to burn out it should be replaced before 602.50 hours.

4 0

3 years ago