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3 years ago

Please help me on this

Mathematics

1 answer:

Fed [463]3 years ago

5 0

I don't exactly get what your supposed to do but I thought it like this:
T V
3000 0
3000 4000
5000 4000
5000 8000
the last two are the final answers on how long the ran or it could be Terrel ran 5 kilometers while Victor ran 8 kilometers, but still idk what exactly your supposed to put

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An electronic system has three major circuit boards, A, B and C. These boards have respective software support in the ratio, (30

yKpoI14uk [10]

Answer:

30.77% probability that this failure is from A.

38.46% probability that this failure is from B.

30.77% probability that this failure is from C.

Step-by-step explanation:

Conditional probability:

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

30% probability of board A being chosen.

Board A has a 4% probability of failure.

30% probability of board B being chosen.

Board B has a 5% probability of failure.

40% probability of board C being chosen.

Board B has a 3% probability of failure.

For all these questions:

Event A: Failure

$P(A) = 0.3*0.04 + 0.3*0.05 + 0.4*0.03 = 0.039$

Probability that this failure is from A:

Event B: Board A is chosen.

Intersection:

Failure from board A:

$P(A \cap B) = 0.3*0.04 = 0.012$

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.012}{0.039} = 0.3077$

30.77% probability that this failure is from A.

Probability that this failure is from B:

Event B: Board B is chosen.

Intersection:

Failure from board B:

$P(A \cap B) = 0.3*0.05 = 0.015$

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.015}{0.039} = 0.3846$

38.46% probability that this failure is from B.

Probability that this failure is from C:

Event B: Board C is chosen.

Intersection:

Failure from board C:

$P(A \cap B) = 0.4*0.03 = 0.012$

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.012}{0.039} = 0.3077$

30.77% probability that this failure is from C.

3 0

3 years ago

2 5/7+4 3/5= help please

Ainat [17]

Answer:

$7\frac{11}{35}$

Step-by-step explanation:

$2\frac{5}{7}+4\frac{3}{5}$

add the whole numbers

$2+4=6$

combine the fractions

$\frac{5}{7}+\frac{3}{5}$

LCM is 35 because 7 * 5 =35

$\frac{5}{7}=\frac{5\cdot \:5}{7\cdot \:5}=\frac{25}{35}$

$\frac{3}{5}=\frac{3\cdot \:7}{5\cdot \:7}=\frac{21}{35}$

$\frac{25}{35}+\frac{21}{35}=\frac{25+21}{35}$

$=\frac{46}{35}$

change the improper fraction into mixed number

$6+1\frac{11}{35}$

$=7\frac{11}{35}$

3 0

3 years ago

Which equation could have been used to create this graph?

Mekhanik [1.2K]

B.) y=3x
The slope of a given line is defined by <em>y=mx+b</em>, where b is the y-intercept (the point at which the line crosses the y-axis) and m is the slope (rise/run). We see that the y-intercept is 0 (because the line hits the y-axis at 0) and the slope is 3 (rise=3 and run=1, so 3/1=3).

:)

5 0

3 years ago

Read 2 more answers

There

Ber [7]

Answer:

This is nonlinear.

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

If a + 1 = b, then b > a.

kogti [31]

If a=-10;then:
a+1=-10+1=-9=b
-9>-10

if a=10; then
a+1=10+1=11=b
11>10
A)The pair of values for a and be are: a=-10, then the value of b would be: -9;
And a=10; then the value of b would be:11;

B) It isn´t possible to create a pair of values for a and be, in wich the numerical relationship shown in the given conditional stament is false, therefore b>a if a+1=b

4 0

3 years ago

Read 2 more answers