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NARA [144]
3 years ago
9

If p(a) = 0.7, p(b) = 0.1, and a and b are mutually exclusive, find p(a or b).

Mathematics
1 answer:
alex41 [277]3 years ago
8 0
Because A and B are mutually exclusive,

P(A\cup B)=P(A)+P(B)=0.8
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Step-by-step explanation:

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3 years ago
The pyramid shown has a square base that is 14 centimeters on each side. The slant height is 15 centimeters. What is the surface
Ksenya-84 [330]
We know that

surface area=area of the base+4*[area of one lateral triangle side]

area of the base=b²
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b=14 cm
area of the base=14²-----> 196 cm²

area of one lateral triangle side=b*h/2
b is the side length of the square
b=14 cm
h is the height of the lateral triangle side
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surface area=196+4*[105]------> 616 cm²

the answer is
the surface area is 616 cm²
7 0
3 years ago
Determine the standard form of the equation for the circle with center (h,k) =( -5, 1/2) and radius r=1
FrozenT [24]

Answer:

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6 0
2 years ago
2people answer thiss . for points??!?!
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5 0
3 years ago
Read 2 more answers
Lea buys 6 model cars that each cost $15 she also buys 4 bottles of paint that each cost $11 how much does lea spends on model c
MissTica
Times the price of the model cars to the amount bought.

$15×6= 90.

Lea paid 90 dollars for the model cars.

Now, multiply the price of the paint to the amount bought.

$11×4= 44.

Lea paid 44 dollars for the paint.

Add both together. 90+44= 134.

Therefore, Lea paid $134 for the model cars and paint all together.

hope this helps!
8 0
3 years ago
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