All categories

4 years ago

What number does this Roman numeral represent? DCCLXXXI

Mathematics

2 answers:

avanturin [10]4 years ago

7 0

k there is your answer. be happy. UwU

Orlov [11]4 years ago

4 0

781 is DCCLXXXI in standard numbers

You might be interested in

Jalil plays hockey. When Jalil takes a shot on goal, the probability that he scores is . If Jalil takes 80 shots on goal in a se

lions [1.4K]

Answer:

its 60

Step-by-step explanation:

7 0

4 years ago

What is the probability that she chose the four students so that exactly ONE of them is a junior?

8090 [49]

Answer:

B) 0.246

Step-by-step explanation:

The desired probability is the sum of the probabilities of each of the ways one junior can be chosen. If we let a, b, c, d represent the ratio of juniors in classes 1 to 4, then this probability is ...

p(1 junior) = (a)(1-b)(1-c)(1-d) + (1-a)(b)(1-c)(1-d) + (1-a)(1-b)(c)(1-d) + (1-a)(1-b)(1-c)(1-d)

We can simplify this a little bit to ...

p(1 junior) = (1-a)(1-b)(1-c)(1-d) × (a/(1-a) +b/(1-b) +c/(1-c) +d/(1-d))

___

So, for {a, b, c, d} = {9/15, 12/15, 6/15, 3/15} = {3/5, 4/5, 2/5, 1/5} the probability of interest is ...

p(1 junior) = (2/5·1/5·3/5·4/5) × (3/2 + 4/1 + 2/3 + 1/4) = 24/625 × 77/12

p(1 junior) = 154/625 ≈ 0.246

_____

<em>Comment on the sum we're computing</em>

Each of the probabilities in the first sum above is ...

p(junior in given class) · p(not a junior in the other 3 classes)

3 0

3 years ago

The area of a rectangle is 65ft squared, and the length of the rectangle is 3ft less than twice the width. Find the dimensions o

creativ13 [48]

Answer:

Step-by-step explanation:

I don’t know sorryyyy

7 0

3 years ago

Solve for x in the diagram below

SVEN [57.7K]

Answer:

$x=6^o$

Step-by-step explanation:

we know that

$5x^o+(x+54)^o=90^o$ -----> by complementary angles

solve for x

$6x=90-54\\6x=36\\x=6^o$

3 0

3 years ago

Hi! Please help, I'd appreciate it!

Romashka-Z-Leto [24]

The volume of sphere is $\frac{1372}{3}\pi$ feet cubed.

Step-by-step explanation:

Given,

Surface area of sphere = 196π square feet

Surface area of sphere = 4πr²

We will find radius of sphere.

$4\pi r^2=196\pi$

Dividing both sides by 4π

$\frac{4\pi r^2}{4\pi}=\frac{196\pi}{4\pi}\\\\r^2=49$

Taking square root on both sides

$\sqrt{r^2}=\sqrt{49}\\r=7$

The radius is 7 feet.

Volume of sphere = $\frac{4}{3}\pi r^3$

$Volume=\frac{4}{3}\pi (7)^3\\\\Volume= \frac{4}{3}\pi *343\\\\Volume = \frac{1372}{3}\pi$

The volume of sphere is $\frac{1372}{3}\pi$ feet cubed.

Keywords: volume, surface area

Learn more about surface area at:

#LearnwithBrainly

3 0

3 years ago