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Marta_Voda [28]
3 years ago
5

HURRY

Mathematics
2 answers:
mixer [17]3 years ago
5 0
Here are 18 brown haired students out of 40 students 18/40=0.45
0.45 

pshichka [43]3 years ago
3 0

Answer: 0.45

Step-by-step explanation:

From the given table, the number students have brown hair = 10+8=18

The total number of students =4+5+4+6+10+8+2+1=40

Now, the probability that a student has brown hair is given by :-

P(Br)=\frac{\text{Students with brown hair}}{\text{Total students}}\\\\\Rightarrow\ P(Br)=\frac{18}{40}=0.45

Hence, the probability that a student has brown hair is 0.45

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What ratios are equivalent<br> to 3/5
barxatty [35]
The given ratios 3: 5 and 15: 25 are equal. Because when you divide the ratio 15: 25 by 5 on both numerator and denominator, the first ratio 3: 5 can be obtained. Similarly, when you multiply the first ratio 3: 5 by 5, the ratio 15: 25 can be obtained.
5 0
3 years ago
Exam: 05.03 Exponential and Logarithmic Functions Mid-Module Check<br><br><br> Solve 4x = 8x − 1
Fantom [35]
If 4x = 8x - 1 then 4x must be equivalent to 1. So that means x is .25 or 1/4.

Hope this helps!
(I assumed your trying to solve for x, please word the question better next time)
5 0
2 years ago
Read 2 more answers
A fair coin is tossed four times. What is the probability that the number of heads appearing on the first two tosses is equal to
alekssr [168]

Answer: 3/8

Step-by-step explanation:

Since it is a fair coin, then generally, P(Head) = P(Tail) = ½

And since we've been asked to find the probability that the number of heads in the first two tosses be equal to the number of heads in the second two tosses, tossing a fair coin four times, the possible outcomes of having equal number of heads in first two tosses and second two tosses becomes:

[HHHH] or [HTHT] or [THTH] or [TTTT] or [HTTH] or [THHT]

=[½*½×½*½] + [½*½×½*½] + [½*½×½*½] + [½*½×½*½] + [½*½×½*½] + [½*½×½*½]

=1/16 * 6

=6/16

=3/8.

8 0
3 years ago
in order for an object to begin to move. stop moving, or change direction, which of the following must be present?​
Angelina_Jolie [31]

Answer:

I think question is incomplete . So I can't give answer.

6 0
3 years ago
Help please! 50 Points! PLEASE DONT RESPOND IF YOU DO NOT KNOW.
Sphinxa [80]

Answer:

e.869.58units^2

f. 96m^2

g. 184m^2

Step-by-step explanation:

e.

484 square

176 triangle

209.58 equilateral triangle

f. 196 total are - mini square 25+25+25+25= 96m^2

g. 22+66+80+16=184m^2

3 0
3 years ago
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