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GuDViN [60]
4 years ago
14

4. answer the question below​

Mathematics
1 answer:
zavuch27 [327]4 years ago
3 0

Answer:

55

Step-by-step explanation:

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Three prime numbers which add up to 25
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3 prime numbers that add to 25 are 17, 3, & 5
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The probability that an archer hits her target when it is windy is 0.4; when it is not windy, her probability of hitting the tar
zzz [600]

Answer:

a) the probability is 0.12 (12%)

b) the probability is 0.61 (61%)

c) the probability is 0.476 (47.6%)

a) the probability is 0.538 (53.8%)

Step-by-step explanation:

a) denoting the event H= hits her target and G= a gust of wind appears hen

P(H∩G) = probability that a gust of wind appears * probability of hitting the target given that is windy = 0.3* 0.4 = 0.12 (12%)

b) for any given shot

P(H)= probability that a gust of wind appears*probability of hitting the target given that is windy + probability that a gust of wind does not appear*probability of hitting the target given that is not windy = 0.3*0.4+0.7*0.7 = 0.12+0.49 = 0.61 (61%)

c) denoting P₂  as the probability of hitting once in 2 shots  and since the archer can hit in the first shot or the second , then

P₂ = P(H)*(1-P(H))+ (1-P(H))*P(H) = 2*P(H) *(1-P(H)) = 2*0.61*0.39= 0.476 (47.6%)

d) for conditional probability we can use the theorem of Bayes , where

M= the archer misses the shot → P(M) = 1- P(H) = 0.39

S= it is not windy when the archer shots → P(S) = 1- P(G) = 0.7

then

P(S/M) = P(S∩M)/P(M) = 0.7*(1-0.7)/0.39 = 0.538 (53.8%)

where P(S/M)  is the probability that there was no wind when the archer missed the shot

7 0
3 years ago
ms. Mitchell wants to buy a new pair of boots that originally cost $65.00 but are now on sale for 15% off. What is the sale pric
Goryan [66]

$55.25c ☺️ Because 10% of 65 is $6.50 and 5% of $3.25 and 6.50 + 3.25 = 9.75 and 65 - 9.75 = 55.25 ☺️ Hope I helped ☺️

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3 years ago
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What is the expression resulting from the following diagram?
tatuchka [14]

Answer:

1. -12x^8

2. 8x^6

3. 16x^11

Step-by-step explanation:

7 0
3 years ago
Draw a line between the points representing wicket 3 and wicket 9 on the diagram. Then, find the
zalisa [80]

Based on the calculations, the area of a rectangle to the nearest hundredth is equal to 1143.92 ft².

<h3>How to calculate the area of a triangle?</h3>

Mathematically, the area of a triangle can be calculated by using this formula:

Area = 1/2 × b × h

<u>Where:</u>

  • b represents the base area.
  • h represents the height.

By drawing a line between the points representing wicket 3 and wicket 9, we can logically deduce that wicket 2 forms a perpendicular bisector. Thus, the distance between the points representing wicket 3 and wicket 9 is given by:

Distance = 1/2 × 36.77

Distance = 36.77/2

Distance = 18.39 ft.

For the height of this triangle, we would apply Pythagorean's theorem:

h² = 25.02² - 18.39²

h² = 626.0004 - 338.1921

h² = 287.8083

h = √287.8083

h = 16.97 ft.

Area of triangle = 1/2 × b × h

Area of triangle = 1/2 × 36.77 × 16.97

Area of triangle = 311.99 ft².

For area of the rectangle, we have:

Mathematically, the area of a rectangle can be calculated by using this formula;

Area = LW

Area = 36.77 × 31.11

Area = 1143.92 ft².

Read more on area of a rectangle here: brainly.com/question/25292087

#SPJ1

3 0
2 years ago
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