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AveGali [126]
3 years ago
11

Si Karen tuviera el 25% mas de la edad que tiene tendría 25 años ¿que edad tiene?

Mathematics
1 answer:
LenKa [72]3 years ago
3 0

Answer:

20 años

................

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PLEASE HELP ASAP- solve the equation : <br> 9x^2+64=0 . i need work to be shown for credit ....
k0ka [10]
In this quadratic equation a=9 b=0 c=64, you could use the Quadratic Formula:
x = [-b +-sqrt (b^2 -4*a*c)] / 2*a
x = 0 +- sqrt (0 -4*9*64) / 2*9
x = +- sqrt(-2,304) / 18

x = + 48 i / 18
x = -48 i /18

Where "i" is the square root of minus 1.


6 0
3 years ago
a blouse, including tax, costs $44. If the blouse is taxed at a a rate of 10%, what is it’s original price?
shusha [124]

Answer:

39.6 is the original cost

Step-by-step explanation:

44×10%=4.4

44-4.4=39.6

7 0
2 years ago
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Can someone please solve this for me?
blondinia [14]

Answer:

66.333333333

Step-by-step explanation:

199/3

1/3=0   19/3= 6    19/3= 6    

.1/3 is remaining so 066.333333

7 0
2 years ago
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At a college, 72% of courses have final exams and 46% of courses require research papers. Suppose that 32% of courses have a res
Ghella [55]

Answer:

a) P(F UR) = P(F) +P(R) -P(F and R) = 0.72+0.46-0.32=0.86

b) P(FUR)' = 1-P(FUR)= 1-0.86 = 0.14

Step-by-step explanation:

Let's define the following events first:

F: The event that a course has a final exam.

R: The event that a course requires a research paper

From the info provided we have that:

P(F) = 0.72, P(R) =0.46 P(F and R) =0.32

So then we can create a Venn diagram as we can see on the figure attached.

a. Find the probability that a course has a final exam or a research project.

For this case we can find the probability like this:

P(F UR) = P(F) +P(R) -P(F and R) = 0.72+0.46-0.32=0.86

b. Find the probability that a course has NEITHER of these two requirements.

For this case we can use the complement rule and we can find the probability like this:

P(FUR)' = 1-P(FUR)= 1-0.86 = 0.14

And that's the same value obtained with the diagram.

8 0
3 years ago
Classify the triangle by its​ sides, and then by its angles.
Gekata [30.6K]

Answer:

Equilateral, acute

Step-by-step explanation:

Equilateral triangles have all sides the same length (all sides are 4 ft in this triangle, so it is equilateral).

Acute triangles have no angles that are greater than or equal to 90 degrees (all angles are 60, which is less than 90, so it is acute).

3 0
3 years ago
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