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cluponka [151]
3 years ago
14

17. What is 43 in expanded form?

Mathematics
2 answers:
adell [148]3 years ago
8 0
Hey there, none of these can be expanded to 43
masha68 [24]3 years ago
3 0

Answer:

None of those that you listed are correct.

Step-by-step explanation:

All of the selections you've shown do not equal to 43. Sorry. :(

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How many ways can a President and a Vice President (2 positions) be selected from a group of 10 people?
Anna35 [415]

Answer:

90

Step-by-step explanation:

There are 10 people who can be picked for the first position, which leaves 9 people who can be picked for the second position.

10 × 9 = 90

You can also use permutations.

₁₀P₂ = 90

7 0
2 years ago
It takes 12 painters to paint the walls of a school in 21 days. In how many days the same job will be completed with 14 painters
nikklg [1K]

Answer:

18 days.

Step-by-step explanation:

We have been given that 12 painters paint the wall of a school in 21 days.

So the wall painted by one painter will paint the wall in 21\times 12\text{ days}=252\text{ days}

As one painter will paint the wall in 252 days, so to find the number of days it will take to paint the same wall by 14 painters, we will divide time taken by one painter (252) by 14.

\text{Time take by 14 painters to paint the wall}=\frac{252}{14}

\text{Time take by 14 painters to paint the wall}=18

Therefore, it will take 18 days to paint the same wall by 14 painters.

8 0
2 years ago
Which of the binomials below is a factor of this trinomial ? X^2 -13+42
lapo4ka [179]

In this case we have the following trinomial:

x ^ 2 -13x + 42

By definition, the factorization is a technique that consists in the mathematical decomposition of an expression, in the form of a product. Having said that, we can factor the given trinomial in the following way:

We look for two numbers that when multiplied give as result 42, and when summed give as result -13.

The numbers that meet these two conditions are -6 and -7 by:

-6 * -7 = 42\\-6-7 = -13

So, we have:

(x-6) (x-7)

Answer:

The binomials associated with the given trinomial are(x-6) and (x-7).


4 0
2 years ago
The following table gives the scores of 30 students in a mathematics examination. Scores 90–99 80–89 70–79 60–69 50–59 Students
Pavel [41]
The given data is
Scores:      90-99  80-89  70-79  60-69  50-59
Students:   3          7           12        4          4
Because we are to take the middle value for each group.
Therefore the total score is
Sx = 3*94.5 + 7*84.5 + 12*74.5 + 4*64.5 + 4*54.5 = 2245
The number of students is 3+7+12+4+4 = 30

The mean is
m =2245/30 = 74.833

Calculate (Sx - m)² 
(Sx - m)² = 3*(94.5-74.833)² + 7*(84.5-74.833)² + 12*(64.5-74.833)²
               + 4*(64.5-74.833)² + 4*(54.5-74.833)² =  3896.7

Calculate the standard deviation
s = √(3896.7/29) = 11.592

Answer:
mean = 74.83
std. deviation = 11.59
6 0
3 years ago
Point M is located at (3, 7). If point M is translated 2 units to the left and 4 units down, what are the coordinates of M’?
FrozenT [24]

It would be located at (1, 3). Hope this helps!

3 0
3 years ago
Read 2 more answers
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