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2 years ago

6

A triangle has perimeter 63 cm, one side is 21 cm, and one median is perpendicular to an angle bisector. Find the other two side

lengths. I WILL MARK BRAINLIEST

1 answer:

Airida [17]2 years ago

8 0

Answer:

21 & 21

Step-by-step explanation:

It is an equilateral triangle, therefore all sides are equal

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If an object has a mass of 15 g and a volume of 3 mL what is its density

Annette [7]

Answer:

Given the mass of the object = 15g

Given the volume of the object = 3 mL

Density = ?

Step-by-step explanation:

We have two values of an object that is mass of the object and volume of the object. Now we are required to find the Density of the object. In order to find the density of the object, we have to divide the given mass with the given volume. Below is the calculation of the density.

Density = Mass / Volume

Density = 15g / 3 mL

Density = 5 g/ml

7 0

3 years ago

In a production process, the probability of manufacturing a defective rear view mirror for a car is 0.075. Assume that the quali

Leviafan [203]

Answer:

The probability that the 3rd defective mirror is the 10th mirror examined = 0.0088

Step-by-step explanation:

Given that:

Probability of manufacturing a defective mirror = 0.075

To find the probability that the 3rd defective mirror is the 10th mirror examined:

Let X be the random variable that follows a negative Binomial expression.

Then;

$X \sim -ve \ Bin (k = 3 , p = 0.075)\\ \\ P(X=x)= \bigg (^{x-1}_{k-1}\bigg)\times P^k\times (1-P)^{x-k}$

$= \bigg (^{10-1}_{3-1}\bigg)\times 0.075^3\times (1-0.075)^{10-3}$

$= \bigg (^9_2\bigg)\times 0.075^3\times (1-0.075)^{7}$

$= \dfrac{9!}{2!(9-2)!}\times 0.075^3\times (0.925)^{7}$

$= \dfrac{9*8*7!}{2!(7)!}\times 0.075^3\times (0.925)^{7}$

= 0.0087999

≅ 0.0088

5 0

2 years ago

What is the answer to this problem

Lana71 [14]

Answer:

idk try someone else

Step-by-step explanation:

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3 years ago

Whats the anwser to -3(x-9)=-3

Delvig [45]

Step-by-step explanation:

-3x + 27= -3

-3x = -3-27

-3x = -30

x= 10

7 0

2 years ago

A technology manufacturer is a supplier of fiber optic cables. They are interested in expanding their business and offering fibe

ExtremeBDS [4]

Answer:

B.alternative hypothesis

Step-by-step explanation:

In this case, the null hypothesis is that 45% of internet providers currently offer fiber optic internet in the United States.

The claim that the proportion of fiber optic internet providers is different from 45% is an alternative hypothesis since it directly contradicts the null hypothesis presented.

The answer is B. alternative hypothesis

8 0

3 years ago