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2 years ago

Kate buys 12 pounds of apples each pound costs $3 if she gives the cashier two $20 billls

Mathematics

2 answers:

Leto [7]2 years ago

5 0

I’m a visual learner and u could be too so I hope this helps u

34kurt2 years ago

3 0

12x3=36
40-36=4
Answer $4

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A company uses three different assembly lines- A1, A2, and A3- to manufacture a particular component. Of thosemanufactured by li

hammer [34]

Answer:

The probability that a randomly selected component needs rework when it came from line A₁ is 0.3623.

Step-by-step explanation:

The three different assembly lines are: A₁, A₂ and A₃.

Denote <em>R</em> as the event that a component needs rework.

It is given that:

$P (R|A_{1})=0.05\\P (R|A_{2})=0.08\\P (R|A_{3})=0.10\\P (A_{1})=0.50\\P (A_{2})=0.30\\P (A_{3})=0.20$

Compute the probability that a randomly selected component needs rework as follows:

$P(R)=P(R|A_{1})P(A_{1})+P(R|A_{2})P(A_{2})+P(R|A_{3})P(A_{3})\\=(0.05\times0.50)+(0.08\times0.30)+(0.10\times0.20)\\=0.069$

Compute the probability that a randomly selected component needs rework when it came from line A₁ as follows:

$P (A_{1}|R)=\frac{P(R|A_{1})P(A_{1})}{P(R)}=\frac{0.05\times0.50}{0.069} =0.3623$

Thus, the probability that a randomly selected component needs rework when it came from line A₁ is 0.3623.

6 0

2 years ago

What is the factored form of the polynomial 3x-3y

sladkih [1.3K]

Answer:

Step-by-step explanation:

3x - 3y = 3(x-y)

5 0

2 years ago

Draw and label a tape diagram to subtract 10, 20, 30

Svet_ta [14]

This isnt something I can do... But draw and label a tape diagram that goes from 0 to 30.

8 0

3 years ago

A student started out poorly on his first mathematics test. However, he doubled his score on each of the next two tests. The thi

dsp73

His score is 50

How to:
First test grade:0
Second test grade:50
Third test grade: 100
Add all three and divide by 3

6 0

2 years ago

Help, I don’t understand this DeltaMath question

djyliett [7]

I can use the angle and the length of JH to find the length of IJ.

To do this, I look at the relationship IJ and JH have to the 52 degree angle. JH is opposite to angle I, and IJ is adjacent to angle I. Because the two side lengths are opposite and adjacent, I use the tangent function to solve this.

Tangent of an angle = the length of the opposite side / the length of the adjacent side. This is just another way to say tan(x)=opposite/adjacent

Now I can fill in what I know...
tan(52)=4.2/x
Now, I want to isolate x.
tan(52) = 4.2/x
x(tan(52))=4.2
x=4.2/tan(52)

Now I put 4.2/tan(52) into a calculator and get x = 3.3 ft

Hope this helps!

7 0

2 years ago