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3 years ago

I need help finding the measures

Mathematics

1 answer:

umka21 [38]3 years ago

7 0

Answer:

a = 50

b = 50

c = 80

d = 50

e = 130

Step-by-step explanation:

e = 180 - (25 + 25) {Angle sum property & It is an isosceles triangle}

= 180 - 50 = 130

a +e = 180 {Linear pair}

a + 130 = 180

a = 180 - 130

a = 50

d =a {Vertically opposite angles}

d = 50

c = 180 -(50+ 50 ) {Angle sum property & It is an isosceles triangle}

c = 180 -100

c = 80

a+b + c = 180 {Straight angles}

50 + b + 80 = 180

b + 130 = 180

b = 180 - 130

b = 50

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At Dave's diner, 2 sandwiches and 2 drinks cost $12. You can buy 5 drinks for the cost of one sandwich.

hram777 [196]

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3 years ago

The brand name of Mrs. Fields (cookies) has a 90% recognition rate. If Mrs. fields herself wants to verify that rate by beginnin

Schach [20]

Answer:

0.3874 = 38.74% probability that exactly 9 of the 10 consumers recognize her brand name.

0.6126 = 61.26% probability that the number who recognize her brand name is not nine.

Step-by-step explanation:

For each consumer, there are only two possible outcomes. Either they recognize the name, or they do not. The probability of a customer recognizing the name is independent of anu other customer. This means that the binomial probability distribution is used 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.

The brand name of Mrs. Fields (cookies) has a 90% recognition rate.

This means that $p = 0.9$ .

Sample of 10

This means that $n = 10$

Find the probability that exactly 9 of the 10 consumers recognize her brand name.

This is P(X = 9). So

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

$P(X = 9) = C_{10,9}.(0.9)^{9}.(0.1)^{1} = 0.3874$

0.3874 = 38.74% probability that exactly 9 of the 10 consumers recognize her brand name.

Also, find the probability that the number who recognize her brand name is not nine.

1(100%) subtracted by those who recognize. So

1 - 0.3874 = 0.6126

0.6126 = 61.26% probability that the number who recognize her brand name is not nine.

4 0

3 years ago

Need help with this, 10 points

Taya2010 [7]

Answer:

Step-by-step explanation:

I did it in a on a piece of paper

6 0

3 years ago

Write a minor function for the line with the slope of -5 that passes through points (7,3)

Ilia_Sergeevich [38]

The equation of the line is $5x+y-38=0$

Step-by-step explanation:

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Also, the line passes through the points $(7,3)$

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