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2 years ago

If a door is 36 inches in width opens to an angle of 140 degrees,how large an arc is created?

Mathematics

1 answer:

Anni [7]2 years ago

8 0

Look at the picture below.

I hope this helps!

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So, I'm NOT a beginner on brainly. And i havent been able to chat with ANYONE I'm friends with. Including one of my friends that

Sauron [17]

Answer:

Same here !

My guess is when you reach Genius on Brainly, you MAY be able to chat.

That's is my guess.

I have had many many different accounts on Brainly and, no chat.

.................weird....................

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2 years ago

Read 2 more answers

David, Morris, and Jose are the stars of the schools’ basketball team. In the last game, David earned twice as many points as Mo

Alexus [3.1K]

Answer:

Since he earned one third as many as Jose

it's 8

Step-by-step explanation:

$\frac{1}{3} \times 24 = 8$

3 0

2 years ago

Solve the inequality 7y-34 ≤ 8

Vlad1618 [11]

Answer:

Explanation: start by adding 34 to both sides to make the variable stand alone giving you
7y is greater than or equal to 42
Then divide 7 into both sides to give you the answer of
Y=6

8 0

2 years ago

16. From past experience, a company has found that in cartons of transistors, 92% contain no defective transistors, 3% contain o

Lynna [10]

Answer:

E(x)=0.15

V(x)=0.3075

S(x)=0.5545

Step-by-step explanation:

The mean of a discrete variable is calculated as:

$E(x)=x_1*p(x_1)+x_2*p(x_2)+...+x_n*p(n)$

where $x_1,x_2,...,x_n$ are the values that the variable can take and $p(x_1),p(x_2),...,p(x_n)$ are their respective probabilities.

So, if we call x the number of defective transistors in cartons, we can calculate the mean E(x) as:

$E(x)=(0*0.92)+(1*0.03)+(2*0.03)+(3*0.02)=0.15$

Because there are 0 defective transistor with a probability of 0.92, 1 defective transistor with a probability of 0.03, 2 defective transistors with a probability of 0.03 and 3 defective transistors with a probability of 0.01.

At the same way, the variance V(x) is calculated as:

$V(x)=E(x^2)-(E(x))^2$

Where $E(x^2)=x_1^2*p(x_1)+x_2^2*p(x_2)+...+x_n^2*p(n)$

So, the variance V(x) is equal to:

$E(x^2)=(0^2*0.92)+(1^2*0.03)+(2^2*0.03)+(3^2*0.02)=0.33\\V(x)=0.33-(0.15)^2\\V(x)=0.3075$

Finally, the standard deviation is calculated as:

$S(x)=\sqrt{V(x)} \\S(x)=\sqrt{0.3075} \\S(x)=0.5545$

8 0

2 years ago

Read 2 more answers

Simplify: 11^3÷11^3×11^3

Olin [163]

The answer will basically be 11^3, because 11^3÷11^3=1, and 1 times 11^3 equals 11^3, which, if you want to put down the integer answer, would be 1,331.

7 0

2 years ago