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bija089 [108]
3 years ago
13

PLS HELP! Whoever gets it right will get brainliest!!

Mathematics
2 answers:
Anna11 [10]3 years ago
8 0
X= (-5/2) or X= 2.5 or X=2 1/2
melomori [17]3 years ago
7 0

Answer:

4

Step-by-step explanation:

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a group of students is donating blood during a blood drive. a student has 9/20 probability of having type 'o' blood and a 2/5 pr
guajiro [1.7K]
For the answer to the question above,
the answer is "<span>The student can have only one blood type, so the actual events are mutually exclusive. "</span>

<span>The probabilities are not mutually exclusive. Based on the group </span>

<span>P(Type O) = 9/20 = 45% or 0.45 </span>
<span>P(Type A) = 2/5 = 40% or 0.40 </span>
<span>P(Other) = 3/20 = 15% or 0.15
I hope my answer helped you. Feel free to ask more questions. Have a nice day!</span>
6 0
3 years ago
Read 2 more answers
A psychology class consists of 14 males and 36 females. if the professor selects name from the class list using random sampling,
Pavel [41]
The total number of students is 14+36, or 50. So the chance that a selected student is female is 36/50, or 18/25.
3 0
3 years ago
What is -14+5k-3= simplifying​
andrew11 [14]

Answer:

5k-17

Step-by-step explanation:

-14+5k-3=5k-14-3=5k-17

8 0
3 years ago
A sphere has a volume of approximately 113 cubic units. Which of the following best represents the radius of the sphere?
Kitty [74]

Answer:

H. 3 units

Step-by-step explanation:

In order to answer this question, we have to apply the formula for the sphere volume. The formula is:

V=\frac{4}{3} \pi r^{3}

Plugging the given number into V, we calculate that:

113 = \frac{4}{3}\pi r^{3}\\84.75 = \pi r^{3}   \\

If π=3.14, the radius is:

r ≈ 3 units.

4 0
3 years ago
Find the number that makes the ratio equivalent 1:3 9:_
dimaraw [331]

Answer:

27

Step-by-step explanation:

If the ratio is 1:3 multiply that by 9:9 so you effectively get 9:9x3 = 9:27. Or, you can say to yourself if B (3) is 3 times greater than A (1) then B is 3 times greater than 9. So 9x3 = 27

3 0
3 years ago
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