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Kay [80]
3 years ago
13

Evaluate the following expression when a = 5. 4a2 + a-3

Mathematics
1 answer:
crimeas [40]3 years ago
4 0
4(5)2+5-3
40+5-3
45-3
42
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Each time, you take out one ball from the box and then put it
melamori03 [73]

Answer:

40/3087

Step-by-step explanation:

First, we need to count the number of each type of numbered ball.

Ball Counts: 1 - 5 balls; 2 - 2 balls; 3 - 1 ball; 4 - 2 balls; 5 - 4 balls; 6 - 3 balls; 7 - 1 ball; 8 - 2 balls; 9 - 1 ball, there are then a total of 21 balls

Next, you need to find the probability of each event.

Get less than 4

p(<4) = (5+2+1)/21

p(<4) = 8/21

Get less than 2

p(1) = 5/21

Get exactly 6

p(6) = 3/21

p(6) = 1/7

Next, we need to find the probability of all three events by multiplying the probabilities together.

p(all three) = (8/21)*(5/21)*(1/7)

p(all three) = 40/3087

The probability of all three events occurring is 40/3087.

7 0
4 years ago
Need help with Geometric Proof
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7 0
3 years ago
The diagram shows MNP. Which term describes point Q?
Olenka [21]

The best point that describes point Q of triangle MNP is; D: Circumcenter

<h3>What is the central point of the triangle?</h3>

We have been given an image of a triangle MNP and we are asked to choose the term that describes point Q

We see that point Q is the point where the perpendicular bisector of the given triangle is intersecting.

Due to the fact that by definition, the point where the perpendicular bisectors of a triangle intersect is called circumcenter, therefore we can conclude that, point Q is the circumcenter of triangle MNP.

Read more about Circumcenter at; brainly.com/question/28022079

#SPJ1

6 0
2 years ago
Which category do points, lines, and planes belong to?
cestrela7 [59]

Answer:

Undefined terms

Step-by-step explanation:

In Geometric system, points, lines, and planes belong to the category of undefined terms. These systems do not have definite shape and sizes.

Point is used to define a location. Lines and planes are extend infinitely.

Hope this will help you. :)

4 0
3 years ago
Tyler order a meal that cost $15if the tax rate is 6.6 percent how much is the sale tax on Tyler meal,how much of a tip I should
Marta_Voda [28]

Answer:

0.99

Step-by-step explanation:

3 0
3 years ago
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