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Juliette [100K]
3 years ago
8

If ​P(E)=0.55​, ​P(E or ​F)=0.65​, and​ P(E and ​F)=0.20​, find​ P(F).

Mathematics
1 answer:
sleet_krkn [62]3 years ago
7 0

Answer:

.3

Step-by-step explanation:

let x= P(f)

.65= .55+x-.2

P(F)=.3

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Circle P has a radius of 14 feet. Circle Q has a diameter of 14 feet. What is the ratio of the circumference of P to the circumf
Salsk061 [2.6K]

Answer:

2:1

Step-by-step explanation:

Circle P has radius 14 feet.

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C=2 \pi \: r

We plug in the radius to get:

C=2\pi \:  \times 14 = 28\pi

Circle Q has diameter 14 feet.

The circumference of this circle is given by

C=\pi \: d

We substitute the diameter d=14 to get,

C=\pi \:  \times 14

C=14\pi

The ratio of the circumference of P to the circumference of Q is

28 \pi: 14\pi = 2:1

4 0
3 years ago
a rectangular garden has dimensions of 100 feet by 10, next season, the garden decreased to 2/5 of its size. what is the scale o
Alexxandr [17]

Answer: 40 ft by 4 ft

Step-by-step explanation:

See attached picture

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3 years ago
What is the surface area of this design?<br> A.150in2<br> B.197in2<br> C.210in2<br> D.127in2
ANEK [815]

Answer:

197 in ^2 (answer B of the list)

Step-by-step explanation:

Notice that this figure has a total of 6 faces, four of which are rectangles (whose area is calculated as "base times height") and two trapezoids (whose area is (B+b)H/2 ).

The total surface area is therefore the addition of these six areas:

Rectangles:

5 in x 5 in = 25 in^2

5 in x 5 in = 25 in^2

5 in x 6.4 in = 32 in^2

9 in x 5 in = 45 in^2

Trapezoids:

Two of equal dimensions: B = 9 in, b = 5 in, H = 5 in

2 * (9 in + 5 in) 5 in /2 = 70 in^2

Which gives a total of  (25 + 25 + 32+45 + 70) in^2 = 197 in^2

This agrees with answer B of he provided list.

6 0
3 years ago
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Step-by-step explanation:

If you were to fold the lines together, the lengths would have a barely different length so it is 72.8

3 0
3 years ago
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Mila [183]

Answer:

40+4.50x+112

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Step-by-step explanation:

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3 years ago
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