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Lesechka [4]
3 years ago
7

What is the probability that a randomly chosen student has either blood group A or blood group B?

Mathematics
2 answers:
SVETLANKA909090 [29]3 years ago
7 0

Answer: 50%

Step-by-step explanation:

imagine you had a pie and you cut it in half to discover their are two different flavors inside no more no less. by assuming theirs only two flavors how much would you say in percentage you would have...... it would be 50% because just like using quarters if you had 50 cents and 50 cents it would equal out to 100, in this case it would be percent you would say from the 2 groups that only 50 percent of the students would be likely to have that blood group

balu736 [363]3 years ago
6 0

Answer:

0.70

Step-by-step explanation:

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Graph y = -2 and x= 3 individually state the slope and x and y intercept form for each
attashe74 [19]

y = -2 and x= 3

Graph is attached below. Black line is the graph of y=-2

Blue line is the graph of x=3

Whenever we get equation like x = something, in that case slope is always undefined

Whenever we get equation like y = something, in that case slope is always 0

y = -2 and x= 3

For x=3, the slope is undefined.

The graph of x=3 is a vertical line at 3 on x. The x intercept is 3 and there is no y intercept.

For y=-2, the slope is 0

The graph of y=-2 is a horizontal line at -2 on y. The y intercept is -2 and there is no x intercept.


4 0
3 years ago
Please help me i think i finally uploaded the right file now
KengaRu [80]

Answer:

y = 35x

and 350

Step-by-step explanation:

This problem's quite similar to the last question with the only difference being the 2nd row changed

So I <em>think </em>that the answers should be the same

6 0
3 years ago
A line that is perpendicular to y=-2/7x+9y and that passes through the point (4, -6)
IrinaK [193]
--------------------------------------------------
Find Slope :
--------------------------------------------------
y = -2/7x + 9
Slope = -2/7
Perpendicular slope= 7/2

--------------------------------------------------
Find y - intercept :
--------------------------------------------------
y = mx + b
y = 7/2 x + b
At (4, -6)
-6 = 7/2 (4) + b
-6 = 14 + b
b = -6 - 14
b = -20

--------------------------------------------------
Form equation :
--------------------------------------------------
y = mx + b
y = 7/2 x - 20
2y = 7x - 40

--------------------------------------------------
Answer: 2y = 7x - 40
--------------------------------------------------

8 0
3 years ago
Daniel earns $760 each month he pays 15% of his earning in tax.
Gwar [14]
15 percent of 760 is 114
760 - 114 = 646

Hope this helps :D
6 0
3 years ago
Classify the following triangle. check all that apply
Vsevolod [243]

Answer is acute and scalene

This triangle is acute since all angles (51, 79, 70) are all less than 90 degrees. It is a scalene triangle as well since none of the sides (10, 12.1 , 11) are equal to each other.

Here are the other definitions to help you in the future

equilateral- All sides are the same. Right - Has one right angle. Obtuse - Has an angle more than 90 degrees. Isosceles - Only two sides are the same. One is different.

5 0
3 years ago
Read 2 more answers
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