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ZanzabumX [31]
3 years ago
11

4. Solve the equation 3x + 2 = 17 using the bar diagram. 17 х х Х 2

Mathematics
1 answer:
Zinaida [17]3 years ago
5 0
:
5
:
3x+2=17
-2 -2
3x=15
/3 /3
x=5
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Jamal bought 4 shirts in Massachusetts. The sales tax is 5%. If the price before tax for each shirt was $16 how much money did j
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Total would be $67.2! Each shirt would cost $16.8 with tax!
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3 years ago
Suppose that a scuba diver is currently 34 feet below sea level. If he descends at a rate of 2 feet per minute, in how many minu
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A human gene carries a certain disease from the mother to the child with a probability rate of 34%. That is, there is a 34% chan
eimsori [14]

Answer:

The probability that at least one of the children get the disease from their mother is P=0.7125.

Step-by-step explanation:

This can be modeled as a binomial random variable.

The parameter p=0.34 is the probability of a child being infected, and is constant and independent of the other events.

The parameter n=3 is the number of children  (sample size).

Then, we have to calculate the probabilty that at least one of the children get the disease from their mother. That is:

P(x\geq1)

The probability of exactly k children being infected can be calculated as:

P(x=k) = \dbinom{n}{k} p^{k}(1-p)^{n-k}

Then, the easiest way to calculate this probability is using the complement: the value of the probability is 1 (or 100%) less the probability that no children gets infected.

P(x\geq1)=1-P(x=0)\\\\\\P(x=0) = \dbinom{3}{0} p^{0}(1-p)^{3}=1*1*0.2875=0.2875\\\\\\P(x\geq1)=1-0.2875=0.7125

3 0
3 years ago
What are the coordinates of the triangle after a dilation with a scale factor of 1/2? Center it at (-3, 0) .
algol13
On the graph, the distance from each point to the center of dilation is cut in half.

The vertices become ...
   (-5,4) ⇒ (-4, 2)
   (3, 8) ⇒ (0, 4)
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5 0
3 years ago
A transformation was applied to ABCD to create A'B'C'D'.
klemol [59]

Answer:

D sorry if wrong

Step-by-step explanation:

6 0
3 years ago
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