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const2013 [10]
2 years ago
8

A teacher gave her class two quizzes. 25% of the class passed both quizzes and 40% of the class passed the first quiz. What perc

ent will pass the second quiz given they passed the first quiz?
Mathematics
1 answer:
Tatiana [17]2 years ago
4 0

Answer:

35%

Step-by-step explanation:

40% + 25% = 65% minus that bye 100 you would get 35% the reason the answer isn't 65 is because add 40+25+65=130 which a whole is equal to 100 but if you do 40+25+35= 100 so thr answer is 35% :)

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Suppose you have 13 tubes of paint. How many distinct color groupings can you make with your paint?
anzhelika [568]

Answer:

32767 distinct color grouping

Step-by-step explanation:

Given data:

Total tube is 13

for distinct color, group can be 1,2,3,4,.... 15

For total number of ways we have following relation

^nC_0 +^nC_1 +^nC_2 + .......^nC_n = 2^n

here n = 13 so we have

^15C_0 +^15C_1 +^15C_2 + .......^15C_{15} = 2^15

for at least one

= 2^{15} - 1

= 32768 -1

= 32767 distinct color grouping

3 0
3 years ago
What is the range of a cosine function?
salantis [7]

Answer:

The sine and cosine functions have a period of 2π radians and the tangent function has a period of π radians. Domain and range: From the graphs above we see that for both the sine and cosine functions the domain is all real numbers and the range is all reals from −1 to +1 inclusive.

Step-by-step explanation:

6 0
3 years ago
(10 points) What type of slope does the line y = -3 have?
lakkis [162]

Answer: It has 0 slope.

Step-by-step explanation:

y= 0(x) -3  this is an equal equation of the line so the slope has to be always zero.

8 0
3 years ago
Helppp math find the leanghth
crimeas [40]

Answer:

70 feet

Step-by-step explanation:

3.5 times 20=70.

4 0
3 years ago
Which pair is made up of prime numbers 11 & 33 , 42 & 56 , 37 & 67, 57 & 97
Cerrena [4.2K]

Answer:

37 & 67

Step-by-step explanation:

11 & 33

  • 11 - 1, 11
  • 11 is prime
  • 33 - 1, 3, 11, 33
  • 33 is composite number
  • 11 & 33 is incorrect

42 & 56

  • 42 - 1, 2, 3, 6, 7, 14, 21, 42
  • 56 - 1, 2, 4, 7, 8, 14, 28, 56
  • Both 42 and 56 are composite numbers
  • 42 & 56 is incorrect

37 & 67

  • 37 - 1, 37
  • 67 - 1, 67
  • Both 37 and 67 are prime numbers
  • 37 & 56 is correct

57 & 97

  • 57 - 1, 3, 19, 57
  • 97 - 1, 97
  • 57 is a composite number, 97 is a prime number
  • 57 & 97 is incorrect
3 0
3 years ago
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