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riadik2000 [5.3K]
3 years ago
12

10. A bag contains 3 red marbles and 4 blue marbles. Two marbles are drawn at

Mathematics
1 answer:
lilavasa [31]3 years ago
4 0

Answer:

the probability is 4/7.

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Does anyone know the answer to this
PtichkaEL [24]

Answer:

Odd

Step-by-step explanation:

One way I remember is that:

Even functions: Have symmetry over the y-axis

Odd functions: Don't have symmetry over the y-axis

8 0
3 years ago
Read 2 more answers
X+2y=10 6y=--3x+30 Use algebraic rules of equations to predict the solution to the system of equations.
MaRussiya [10]
X + 2y = 10 . . . (1)
6y = -3x + 30 . . . (2)

From (2), 3x + 6y = 30
3(x + 2y = 10)
3 x (1)

Since, the second equation is a multiple of the first equation, the system will have an infinitely number of solutions.
3 0
2 years ago
Would the answer be 19 1/3 or 1? Please help!
zhannawk [14.2K]

Answer:

19 because it greater and im guessing

8 0
2 years ago
The body temperatures of a group of healthy adults have a bell-shaped distribution with a mean of 98.35°F and a standard deviati
DochEvi [55]

Answer:

a) 99.97%

b) 65%

Step-by-step explanation:

• 68% of data falls within 1 standard deviation from the mean - that means between μ - σ and μ + σ.

• 95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ.

• 99.7% of data falls within 3 standard deviations from the mean - between μ - 3σ and μ + 3σ.

Mean of 98.35°F and a standard deviation of 0.64°F.

a. What is the approximate percentage of healthy adults with body temperatures within 3 standard deviations of the mean, or between 96.43°F and 100.27°F?

μ - 3σ

98.35 - 3(0.64)

= 96.43°F

μ + 3σ.

98.35 + 3(0.64)

= 100.27°F

The approximate percentage of healthy adults with body temperatures is 99.97%

b. What is the approximate percentage of healthy adults with body temperatures between 97 .71°F and 98.99°F?

within 1 standard deviation from the mean - that means between μ - σ and μ + σ.

μ - σ

98.35 - (0.64)

= 97.71°F

μ + σ.

98.35 + (0.64)

= 98.99°F

Therefore, the approximate percentage of healthy adults with body temperatures between 97.71°F and 98.99°F is 65%

4 0
3 years ago
Solve for x:<br><br> 2.5x - 10.5 = 64 (0.5) ^x
Andreyy89
The answer is x=5. This is because you need to simplify both sides and then isolate the variable.
6 0
2 years ago
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