3 years ago

What is the square root of -1?

Mathematics

1 answer:

Neporo4naja [7]3 years ago

3 0

Answer:

I hope this helps!

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What is 96\3 as a decimal please help thanks

spayn [35]

3 goes into 96 32 times, so 96/3=32. There is no decimal (unless you insist on including one, then it'd be 32.0) because 3 goes into 96 perfectly.

7 0

3 years ago

4.) A bag contains 10 red marbles and 5 blue marbles. You randomly select 3 marbles from the bag. What is

sesenic [268]

Answer:

a) 1/27

b) 2/91

Step-by-step explanation:

A bag contains 10 red marbles and 5 blue marbles (15 marbles in total). You randomly select 3 marbles from the bag.

a) You replace each marble before selecting the next one.

The probability of selecting one blue marble is

$\dfrac{5}{15}=\dfrac{1}{3},$

then the probability that all 3 marbles are blue is

$\dfrac{1}{3}\times \dfrac{1}{3}\times \dfrac{1}{3}=\dfrac{1}{27}$

b) You do not replace each marble before selecting the next one. Each time the number of blue marbles decreases by 1 and the total number of marbles decreases by 1 too. So the probability that all 3 marbles are blue is

$\dfrac{5}{15}\times \dfrac{4}{14}\times \dfrac{3}{13}=\dfrac{2}{91}$

7 0

3 years ago

the height of the rectangular box is 4 times its width, and its length is 2 in more than its width. the volume of the box is 60i

alexandr402 [8]

Step-by-step explanation:

height= 4b

length = 2 + b

volume = 60in³

or, l ×b × h = 60in³

or, (2+b) × b × 4b = 60in³

or, 4b²(2+b) = 60in³

or, 8b² + 4b³ = 60

or, 2b² + b³ = 15

or, b³ + 2b² -15= 0

b= 1.95

l= 2+1.95=3.95

h= 4×1.95 = 7.8

4 0

2 years ago

3x<img src="https://tex.z-dn.net/?f=3x%5E%7B2%7D%20-13x%2B4" id="TexFormula1" title="3x^{2} -13x+4" alt="3x^{2} -13x+4" align="a

den301095 [7]

Answer:

46790

Step-by-step explanation:

3 0

3 years ago

Find the area of the kite brainly

sesenic [268]

Length of diagonal=4.93+10.2=15.13 m
Length of the other diagonal=8.5+8.5=17 m
Area=1/2 x diagonal1 x diagonal2
=1/2 x 15.13 x 17
=128.61 cm^2

7 0

4 years ago

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