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OleMash [197]
3 years ago
11

Find (5.2 x 107)(5 x 108) (3.2 x 106)(5 x 105) , expressed in scientific notation. A) 1.625 x 104 B) 1.625 x 105 C) 8.125 x 104

D) 8.125 x 105
Mathematics
1 answer:
olga nikolaevna [1]3 years ago
4 0

Answer:

I think it is A) 1.625 x 10^4

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HELP!!!!! Algebra II Help needed
Rainbow [258]

Answer:

a_{n} =  8n - 10

Step-by-step explanation:

a_{n}  = a_{1}  + (n - 1)d  is the formula you want to use

a_{n}  = -2 + (n - 1)8

    = -2 + 8n - 8

   = 8n - 10

8 0
2 years ago
Suppose that two cards are randomly selected from a standard​ 52-card deck. ​(a) What is the probability that the first card is
ser-zykov [4K]

Answer:

(a)\frac{1}{17} (b) \frac{1}{16}

Step-by-step explanation:

GIVEN: Suppose that two cards are randomly selected from a standard​ 52 card deck.

TO FIND: (a) What is the probability that the first card is a club and the second card is a club if the sampling is done without​ replacement? ​(b) What is the probability that the first card is a club and the second card is a club if the sampling is done with​ replacement.

SOLUTION:

(a)

Probability that first card is club P(A)=\frac{\text{total club cards}}{\text{total cards}}

                                                   =\frac{13}{52}

                                                   =\frac{1}{4}

As sampling is done without replacement.

probability that second card is club  P(B)=\frac{\text{total club cards}}{\text{total cards}}

                                                            =\frac{12}{51}

                                                            =\frac{4}{17}

Probability that first card is club and second card is club =P(A)\times P(B)

                                                                                             =\frac{1}{4}\times\frac{4}{17}=\frac{1}{17}

(b)

Probability that first card is club P(A)=\frac{\text{total club cards}}{\text{total cards}}

                                                   =\frac{13}{52}

                                                   =\frac{1}{4}

As sampling is done with replacement.

probability that second card is club  P(B)=\frac{\text{total club cards}}{\text{total cards}}

                                                            =\frac{13}{52}

                                                            =\frac{1}{4}

Probability that first card is club and second card is club =P(A)\times P(B)

                                                                                             =\frac{1}{4}\times\frac{1}{4}=\frac{1}{16}

3 0
3 years ago
15 POINTS!
jok3333 [9.3K]
The answer is 7x20 and that equals 140 good luck
8 0
3 years ago
The sum of three consecutive numbers is 72. What is the middle number?
Mkey [24]

Answer:

48

Step-by-step explanation:

Assuming that the numbers went in a pattern instead of a random order it would be 48 because 48 divided by 3 would be 24. 24 would be the first number though, so it would be 48 because 24 plus 24 is 48.

Hope this helps, have a great day!

6 0
3 years ago
Read 2 more answers
the length of a rectangle is increased by 15% while its perpendicular height is decreased by 15%. determine, if any, the percent
djverab [1.8K]

No change in area if sides of rectangle are equal.

Hope this helps.

8 0
3 years ago
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