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expeople1 [14]
3 years ago
8

Explain what can happen if you line up the digits incorrectly when you rewrite addition problems.

Mathematics
2 answers:
irina1246 [14]3 years ago
8 0
If you don't put them in the right place you might end up adding it to another number and your answer be incorrect
melamori03 [73]3 years ago
5 0
You get the answer wrong. E.g. 23.4 + 22.3 = 45.7 BUT if you line it up incorrectly 2.34 + 223. = 225.34
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A deck of cards with four suits; hearts, diamonds, spades, and clubs. you pick one card, put it back and thennpick another card.
Llana [10]

1. First, let us find the probability that the first card is a diamond.

Now, since we are given that there are four suits and there are, assumably, an equal number of cards in each suit, we can say that the probability of choosing a diamond card is 1/4. We can also write this out as such, where D = Diamond:

Pr(D) = no. of diamond cards / total number of cards

There are 52 cards in a deck, and 13 cards of each suit, thus:

Pr(D) = 13/52 = 1/4

2. Now we need to calculate the probability of not choosing a diamond as the second card.

In many cases, when given a problem that requires you to find the probability of something not happening, it may be easier to set it out as such:

Pr(A') = 1 - Pr(A)

ie. Pr(A not happening, or not A) = 1 - Pr(A happening, or A)

This works because the total probability is always 1 (100%), and it makes sense that to find the probability of A not happening, we take the total probability and subtract the probability of A actually happening.

Thus, given that we have already calculated that the probability of choosing a Diamond is 1/4, we can now set this out as such:

Pr(D') = 1 - Pr(D)

Pr(D') = 1 - 1/4

Pr(D') = 3/4

3. Now we come to the final step. To find the probability of something and then something else happening, we must multiply the two probabilities together. Thus, given that Pr(D) = 1/4 and Pr(D') = 3/4, we get:

Pr(D)*Pr(D') = (1/4)*(3/4)

= 3/16

Thus, the probability of choosing a diamond as the first card and then not choosing a diamond as the second card is 3/16.

7 0
3 years ago
Please answer the question please. The question is down below.
nekit [7.7K]

Answer:

Please add a picture!

Step-by-step explanation:

7 0
3 years ago
Ter 1: Solving Simple Equation Solve x +5 = 8.​
Andru [333]

Answer:

3

Step-by-step explanation:

Step 1:

x + 5 = 8

Step 2:

x = 8 - 5

Answer:

x = 3

Hope This Helps :)

3 0
3 years ago
Read 2 more answers
Help please! thank you so much
umka21 [38]

Answer:

4 units ...................

4 0
2 years ago
Leo multiplied all numbers from 1 to 11 and wrote the answer on the board. During the break three digits were erased 39,9...6,8.
Pavlova-9 [17]
11! = 39,916,800

The erased digits are 1, 0, 0.
6 0
3 years ago
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