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3 years ago

What is the answer???

Mathematics

2 answers:

weeeeeb [17]3 years ago

8 0

Answer:

Diameter- 22cm, circumference - 69.08cm

Step-by-step explanation:

How we find the diameter is we simply multiply the radius by 2 and get 22.

How we find the circumference is we use the diameter and multiply it by pi (3.14) and get 69.08cm.

I wasn't to sure what you were asking here but I did the circumference and the diameter.

sdas [7]3 years ago

6 0

Answer:

The diameter is 22cm

Step-by-step explanation:

I dont know if thats what the question is asking but here

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A 20-foot ladder leans up against the side of a building so that the foot of the ladder is 10 feet from the base of the building

harina [27]

Answer:

17.3

Step-by-step explanation:

To solve this equation, you need to use the pythagorean theorem which is:

$a^{2} +b^{2}= c^{2}$

a= length

b= height

c= hypotenuse

First, substitute in your values for the equation:

$10^2+b^{2} =20^{2}$

Then, use the squares in the equation:

$100+b^{2} =400$

Then, subtract 100 from both sides to isolate b:

$b^{2} =300$

Finally, square root both sides to get your answer:

$b=17.3205080757$

Then round to the nearest tenth which gives you 17.3.

6 0

3 years ago

7.For the given triangle find the exact value for tan(A). Assume angle C is a right angle.

Vsevolod [243]

tan A = 2/7 (option C)

Explanation:

Angle = A

opposite = side opposite the angle = BC

opposite = 2

adjacent = AC

AC = 7

hypotenuse not given

Since angle C is a right angle, we would apply trigonometry ratio SOHCAHTOA

We are looking for tan A, tan ratio (TOA):

$\tan angle=\frac{opposite}{adjacent}$ $\tan \text{ A = }\frac{2}{7}\text{ (}option\text{ C)}$

6 0

1 year ago

Nine fewer than half a number is 5 more than four times the number define a varuble

Amanda [17]

5/2x-9+4x

the variable is x

4 0

3 years ago

A manufacturer knows that 14% of the products it produces are defective. Find the probability that among 7 randomly selected pro

diamong [38]

Answer: 0.6521

Step-by-step explanation:

According to the Binomial distribution , the provability of getting x successes in n trials is given by :-

$P(x)=^nC_xp^x(1-p)^{n-x}$ , where p=probability of getting success in each trial.

Let x denotes the number of defective products.

here , n=7 and p =0.14

Then, the probability that among 7 randomly selected products, at least one of them is defective= P(X ≥ 1) =1- P(X<1)

= 1- P(X=0)

$=1-^7C_0(0.14)^0(1-0.14)^7$

$=1-(1(1)(0.86)^7\ \[\because ^nC_0=1]$

$=1-0.347927822217$

$=0.652072177783\approx0.6521$

Hence, the probability that among 7 randomly selected products, at least one of them is defective is 0.6521 .

7 0

3 years ago

I need help on this pleas,what is 9 ÷ 1/5

Mekhanik [1.2K]

Answer:

Step-by-step explanation:

Flip the fraction, 1/5 to 5/1, and reverse the equation to a multiplication problem.

$1/5 \rightarrow 5/1\\9 \cdot 5/1 = 45$

Let me know if you have questions or concerns.

8 0

2 years ago