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4 years ago

The probability that an archer hits a target when he shoots an arrow is 0.7. The archer shoots two

Mathematics

1 answer:

Sholpan [36]4 years ago

6 0

Answer:

The tree diagram is shown in the tree diagram is shown.

If the probability to hit is 0.7, then the probability to miss is 0.3.

P(hit, hit) = 0.7*0.7 = 0.49

P(hit, miss) = 0.7*0.3 = 0.21

P(miss, hit) = 0.3*0.7 = 0.21

P(miss, miss) = 0.3*0.3 = 0.09

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Which is equivalent to 3 square foot of 8 1/4 x

Oxana [17]

$( \sqrt[3]{8}) \frac{1}{4} x = 8 \frac{1}{3} \frac{1}{4} x = 8 \frac{1}{12} x = ( \sqrt[12]{8}$

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3 years ago

A group of Republicans and Democrats was surveyed and each member was asked whether they liked apple pies or eclairs. 80% of the

kirill [66]

Answer:

Any multiple of 71 (i.e. 71, 142, 710, etc)

Step-by-step explanation:

Republicans = R

Democrats = D

Republicans that liked apple pie = 0.80R

Democrats liked eclairs = 0.55D

Republicans who liked apple pie that also liked eclairs = (0.80*0.20)R

If the number of Republicans who liked both desserts is equal to the number of Democrats who liked eclairs, then the following must be true:

$(0.8*0.2)R=0.55D\\0.16R=0.55D\\16R=55D$

Since the number of Republicans and Democrats must be integers, the least number of members possible is 71 (55+16).

Any value that is a multiple of 71 is a possible value for the number of members of the group

3 0

4 years ago

What’s 12.3+0.61+100

hichkok12 [17]

Answer:

12.3 + 0.61 +100= 112.91

Step-by-step explanation:

All you have to do is make all the values have two place values and then add.

5 0

4 years ago

Quadrilateral ABCD is inscribed in this circle.

murzikaleks [220]

Answer:

C = 80

Step-by-step explanation:

A cyclic quadrilateral is one where all 4 vertices touch the circumference of a circle.

It has 1 interesting property that should concern you: <B + <D = 180 degrees.

3x - 59 + 2x - 1 = 180 Combine like terms

5x - 60 = 180 Add 60 to both sides.

5x = 180 + 60

5x = 240

x = 240/5

x = 48

Now go to 2x + 4.

x = 48

A = 2*48 + 4

A = 96 + 4

A = 100

So C = 180 - 100

C = 80

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3 years ago

Why do some functions not have x intercepts?

IceJOKER [234]

The x-axis is defined by the equation y=0x+0. Since we see that our equation and that of the x-axis have the same slope, they will never intersect. So, to answer your question, any equation of the form y=b will have no x-intercept, except y=0, which will have infinitely many intercepts

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3 years ago