3 years ago

Do question four plzzz

Mathematics

2 answers:

d1i1m1o1n [39]3 years ago

6 0

Answer:

Step-by-step explanation:

Oduvanchick [21]3 years ago

6 0

The answer for this question would be B. hope this helped you !

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Evaluate the following expression 1/3^2

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Answer:

1/9

Step-by-step explanation:

1/3*1/3=1/9

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What is the area of a triangle with vertices (1,0) (5,0) (3,4)

Aleksandr-060686 [28]

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The area of the triangle is of 8 units of area.

Step-by-step explanation:

Answer:

The area of the triangle is of 21 units of area.

Step-by-step explanation:

The area of a triangle with three vertices $(x_1,y_1),(x_2,y_2),(x_3,y_3)$ is given by the determinant of the following matrix:

$A = \pm 0.5 \left|\begin{array}{ccc}x_1&y_1&1\\x_2&y_2&1\\1_3&y_3&1\end{array}\right|$

In this question:

Vertices (1,0) (5,0) (3,4). So

$A = \pm 0.5 \left|\begin{array}{ccc}1&0&1\\5&0&1\\3&4&1\end{array}\right|$

$A = \pm 0.5(1*0*1+0*1*3+1*5*4-1*0*3-0*5*1-1*1*4)$

$A = \pm 0.5*(20-4)$

$A = \pm 0.5*16 = 8$

The area of the triangle is of 8 units of area.

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A process is turning out end items that have defects of type a, or type b, or both. if the probability of type a defect is 0.1 a

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