3 years ago

What’s the probability that you will fail a 10 question test if you Christmas tree it?

Mathematics

1 answer:

topjm [15]3 years ago

4 0

What does that even mean? can you re-word the question please?

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Rosc has $500 in her savings account. She carnis simple interest at 5%

Firlakuza [10]

Answer:

Step-by-step explanation:

I assume you are asking how much she EARNS after 2 years.

500x.-5=25 interest per year

25 x 2 years = 50 interest for 2 years.

5 0

2 years ago

Evaluate arithmetic series:-<br><br> Step-by-step answer, please!

lorasvet [3.4K]

Let's see

$\\ \rm\Rrightarrow {\displaystyle{\sum^{275}_{k=1}}}(-5k+12)$

$\\ \rm\Rrightarrow (-5(1)+12)+(-5(2)+12)\dots (-5(275)+12)$

$\\ \rm\Rrightarrow 7+5+3+2+1+\dots -1363$

a=7
l=-1363
n=275

Sum:-

$\\ \rm\Rrightarrow S_n=\dfrac{n}{2}[a+l]$

$\\ \rm\Rrightarrow \dfrac{275}{2}(7-1363)$

$\\ \rm\Rrightarrow \dfrac{275}{2}(-1356)$

$\\ \rm\Rrightarrow 275(-678)$

$\\ \rm\Rrightarrow -186450$

4 0

2 years ago

Read 2 more answers

The scale of a map is 1:1,000,000. What are the real distances between two points if the distance between them on this map is: b

Dennis_Churaev [7]

Answer:

The real distance is $600,000\ cm$ or $6\ km$

Step-by-step explanation:

we know that

The scale of the map is $1:1,000,000$

that means

1 cm in the map-------> represent 1,000,000 cm in the actual (real distance)

by proportion

$\frac{1}{1,000,000}=\frac{0.6}{x}\\ \\x=0.6*1,000,000\\ \\x=600,000\ cm$

Remember that

$1\ km=100,000\ cm$

$600,000\ cm=6\ km$

3 0

3 years ago

Please help me to solve this

ser-zykov [4K]

Answer:

a) 15m²

b) 750cm³

Step-by-step explanation:

(3+2)/2=5/2=2.5

2.5x6=15

a) 15m²

1/20=x/15

15=20x

x=15/20

x=3/4 = 0.75

1 liter is 1000cm³

1000x0.75

b) 750cm³

8 0

3 years ago

Read 2 more answers

The card is a two given that it is black. What is the probability ( the standard deck is 52 cards)

Ira Lisetskai [31]

If I understand the question correctly the the probability would be 2/52 or simplified 1/26

3 0

2 years ago