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3 years ago

Find Angle X (please help asapppp)

Mathematics

2 answers:

serious [3.7K]3 years ago

8 0

Answer:

Step-by-step explanation:

all angles of a triangle adds up to 180

180-77-42=61

GrogVix [38]3 years ago

8 0

Answer:

Step-by-step explanation:

All angles should add up to equal 180 since it is a triangle

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What is the exact volume of the cone

Travka [436]

Answer:

V = $\frac{400}{3}$ $\pi$

Step-by-step explanation:

Volume of a cone is:

$V = \pi r^{2} \frac{h}{3}$

Substitute values given:

$V = \pi (5^{2} )(\frac{16}{3})$

$V = \pi (25)(\frac{16}{3} )$

V = $\pi \frac{400}{3}$

V = $\frac{400}{3}$ $\pi$

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3 years ago

Write the equation of a linear function for which f=(-4)=0 and f=(0)=-2

densk [106]

Answer:

y = -0.5x - 2

Step-by-step explanation:

equation: f(x) = mx + b

f(-4) : -4m + b = 0 ...(1)

f(0): 0m + b = -2 b = -2 ... plug in (1)

-4m - 2 = 0

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linear equation: y = -0.5x - 2

6 0

3 years ago

Find the area of the circle.<br> Use 3.14 for it.<br> d = 6 ft<br> A = [?] ft2<br> A=Tr2

Sedaia [141]

Answer:

28.26 ft^2

Step-by-step explanation:

Area of a circle is calculated using the following formula :

πr^2 (r: radius, and π is given as3.14)

the diameter is given as 6 and radius is equal to half of it so :

(3.14)*3^2 = 28.26 ft^2

3 0

3 years ago

According to the National Institute of Allergy and Infectious Diseases, approximately 7% of U.S. children 4 years of age or youn

Yuliya22 [10]

Answer:

0.337 = 33.7% probability that one of the eight children has a food allergy.

Step-by-step explanation:

For each children, there are only two possible outcomes. Either they have a food allergy, or they do not. The probability of a child having food allergy is independent of any other child. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

7% of U.S. children 4 years of age or younger have a food allergy.

This means that $p = 0.07$

A day care program has capacity for 8 children in that age range.

This means that $n = 8$

What is the probability that one of the eight children has a food allergy?

This is P(X = 1).

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 1) = C_{8,1}.(0.07)^{1}.(0.93)^{7} = 0.337$

0.337 = 33.7% probability that one of the eight children has a food allergy.

6 0

3 years ago

Pls help with this question

Anika [276]

Answer: A: I'm pretty sure

Step-by-step explanation: if you look at the graph the the 2 and 16 are the only lines where the 0 runs across and its also where the ticket prices are.

7 0

3 years ago