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Fofino [41]
3 years ago
9

Find the area of the following polygons:

Mathematics
2 answers:
Art [367]3 years ago
8 0
Area of ABCE:
12 x 4
= 48cm squared

Area of CDE:
To get the height of the triangle, you subtract 4 from 10.

10 - 4 = 6cm
Base = 12 cm

12 x 6 = 72cm

72 divided by 2
= 36cm squared.

48 + 36 = 84cm squared.

(if it’s asking individual areas, then it’s 48cm and 36cm)
Fiesta28 [93]3 years ago
3 0

Answer:

84 m²

Step-by-step explanation:

The polygon is composed of a rectangle and a triangle.

area of rectangle = 12 × 4 = 48 m²

area of triangle = \frac{1}{2} × 12 × (10 - 4) = 6 ×6 = 36 m²

Total area = 48 + 36 = 84 m²

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You get GPS units from two manufacturers, A and B. You get 43% of your units from A and 57% of your units from B. In the past, 2
defon

Answer:

0.5015 = 50.15% probability that it came from manufacturer A.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Defective

Event B: From manufacturer A.

Probability a unit is defective:

2% of 43%(from manufacturer A)

1.5% of 57%(from manufacturer B). So

P(A) = 0.02*0.43 + 0.015*0.57 = 0.01715

Probability a unit is defective and from manufacturer A:

2% of 43%. So

P(A \cap B) = 0.02*0.43 = 0.0086

What is the probability that it came from manufacturer A?

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.0086}{0.01715} = 0.5015

0.5015 = 50.15% probability that it came from manufacturer A.

4 0
2 years ago
A box rectangular prism has an end that is 3 by 5 ft in dimension it’s length is 10 feet what is the volume of the prism
Alchen [17]

Answer:

150

Step-by-step explanation:

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4 0
3 years ago
Using identities, find a)(2 + 3) 2 b) (x+2y) (x-2y)​
shutvik [7]
Pop ok you see so the answer here would be frantically elastic
5 0
2 years ago
Which number line shows -1/4 and it opposite?
NISA [10]

Answer:

B

Step-by-step explanation:

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3 years ago
Which shows the correct substitution of the values a, b, and c from the equation 1 = -2x + 3x² + 1 into the quadratic
antoniya [11.8K]
The coefficient 'a' for the quadratic term is a = 3
The coefficient 'b' for the linear term is b = -2
The coefficient 'c' is 0
Step-by-step explanation :
The given expression is,




To solve this problem we are using quadratic formula.
The general quadratic equation is,

Formula used :

Now we a have to solve the above equation and we get the value of 'x'.

a = 3, b = -2, c = 0






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The coefficient 'b' for the linear term is b = -2
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