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tresset_1 [31]
2 years ago
5

A single ball is taken at random from an urn containing 10 balls numbered 1 through 10. what is the probability of obtaining a b

all whose number is less than 7?
Mathematics
1 answer:
kotykmax [81]2 years ago
7 0

To find probability you can use proportions

What i would do is 6/10 since it cant be 7 and then cross multiply it by 1/10.

This should get you 60%

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Harley read 5 books in january, 8 books in february, 4 books in march and 7 books in april. what is the average number of books
Andrej [43]

Answer:

B: 6

Step-by-step explanation:

Find the mean:

5+8+4+7= 24

24/4=6

7 0
2 years ago
Please helpppppppppp
Alika [10]

Answer:

x = 1/3

Step-by-step explanation:

f(x) = -3x^2 + 2x-17

This is in the form

ax^2 +bx+c

a = -3  b = 2  c = -17

The axis of symmetry is at

x = -b/2a

x = -2/ (2*-3)

x = -2/-6

x = 1/3

8 0
3 years ago
A. ∠2<br><br> B.∠5<br><br> C.∠4<br><br> D.∠3
Shkiper50 [21]
The answer is <span>D.∠3
If you use a proctor you can see they measure the same
</span>
6 0
3 years ago
Which value, when placed in the box, would result in a system of equations with infinitely many solutions?
Fantom [35]

Answer:

<h2>If we placed the number 10 in the box, we obtain a system of equations with infinitely many solutions.</h2>

Step-by-step explanation:

The given system is

y=2x-5\\2y-4x=a

<em>It's important to know that a system with infinitely many solutions, it's a system that has the same equation</em>, that is, both equation represent the same line, or as some textbooks say, one line is on the other one, so they have inifinitely common solutions.

Having said that, the first thing we should do here is reorder the system

y=2x-5\\2y=4x+a

This way, you can compare better both equations. If you look closer, observe that the second equation is double, that is, it can be obtained by multiplying a factor of 2 to the first one, that is

y=2x-5\\2y=4x-10

So, by multiplying such factor, we obtaine the second equation. Observe that a must be equal to 10, that way the system would have infinitely solutions.

Therefore, the answer is 10.

4 0
3 years ago
A coat regularly priced at $188 is on sale for 25% off. what is the sale price
Allushta [10]
To find the answer first find the base number or 1% of $188 which is 1.88. Next find what percent is asking for 25% so multiply by 25 1.88 which is 47 so 47-188 = 141 this is one way to do it
3 0
3 years ago
Read 2 more answers
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