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klasskru [66]
3 years ago
9

Triangle MNO is an equilateral triangle with sides measuring 16 square root of 3 units.

Mathematics
2 answers:
Olenka [21]3 years ago
6 0
M.N and O are 60 degree. And you have to know that 30 60 and 90 triangle. if 30 degrees opposite is measuring A , 60 is A square root 3 and the 90's opposite is being 2A. So 90 degree opposite is 16 square root 3 and 30 degree is being 8 square root 3 and 60 is
8 \sqrt{3}  \times  \sqrt{3}  = 24
the height is 24 .
olga55 [171]3 years ago
4 0

Answer:

The height of the triangle is 24 units.

Step-by-step explanation:

The height of the given triangle is NR

Using the Pythagorean Theorem,

|NR|^2+|OR|^2=|ON|^2


From the diagram, |ON|=16\sqrt{3} units

and

|OR|=\frac{1}{2}\times 16\sqrt{3}


|OR|=8\sqrt{3} units.


We substitute all these values into the above formula to get,


|NR|^2+(8\sqrt{3})^2=(16\sqrt{3})^2

We evaluate to get,

|NR|^2+64(3)=256(3)


We group like terms to get,

|NR|^2=256(3)-64(3)


|NR|^2=3(256-64)


|NR|^2=3(192)


|NR|^2=576


We take the positive square root of both sides to get,


NR=\sqrt{576}


NR=24


Therefore the height of the triangle is 24 units.











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If the mass of a material is 45 grams and the volume of the material is 11 cm^3, what would the density of the material be?
Nuetrik [128]

Answer:

Density of material would be 4.09 g/cm^3

units is g/cm^3

Step-by-step explanation:

Given: The mass of a material is 45 grams and the volume of the material is 11 cubic centimeter

Density is defined as mass per unit volume.

It is given by:

p= \frac{m}{V} where p is the density , m is the mass and V is the volume of the material respectively.

Here, Density is expressed in grams per centimeter cubed (g/cubic cm)

Here, m = 45 g , V = 11 cubic cm

We get;

p= \frac{45}{11} = 4.09 g/cm^3

therefore, density of a material would be, 4.09 g/cm^3

and its units is g/cm^3

7 0
3 years ago
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

if you added 85,70, and 50 you would get 205 and that is more than the number of students that were interviewed so 35 would be the correct answer

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A large industrial firm allows a discount on any invoice that is paid within 30 days. of all invoices, 10% receive the discount.
Daniel [21]
This situation has two outcomes: either an invoice is discounted or not. This two outcomes satisfy what we call a binomial distribution (note "bi" in binomial).

The binomial distribution tells us the probability that a randomly selected sample will have the outcome of success. In this case, we consider receiving the discount as the "success" outcome while not receiving it means "failure". The distribution takes the form:

P(X=x)= _{n}C_{x} p^{x}  q^{n-x}
where n is the total number of samples, x is the number of samples you'll expect to have a success outcome, p is the probability of success, q is the probability of failure, and nCx is the combination of n samples taken x at a time.

You have an inconsistency regarding the total number of samples by the way, but I will take the first mentioned sample of 15 as I answer (you can just follow through the same process for another value).

For the next step, let's digest the problem to get the needed variables.

The total number of samples, n, is equal to 15. The probability of success (receiving a discount), p, is 10% or 0.1, and the probability of failure (not receiving a discount) is 90% or 0.9.

For P(X=x), we need to find the probability that less than two of the samples have success outcomes therefore we need to find the probability that NO invoice will receive the discount plus the probability that ONE invoice will receive the discount. This is equivalent to saying
P(X\ \textless \ 2)=P(X=0)+P(X=1)

Calculating these probabilities we'll get:
P(X=0)= _{15}C_{0} (0.1)^{0} (0.9)^{15}=0.206
P(X=1)= _{15}C_{1} (0.1)^{1} (0.9)^{14}=0.343
P(X\ \textless \ 2)=P(X=0)+P(X=1)=0.206+0.343=0.549

ANSWER: The probability that fewer than 2 sampled invoices will receive the discount is 0.549 or 54.9%.
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earnstyle [38]
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