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gtnhenbr [62]
3 years ago
15

An equation has solutions of m= -5 and m=9. Which would be the equation?

Mathematics
2 answers:
Pani-rosa [81]3 years ago
8 0

Answer:

m^2-4m-45=0

Step-by-step explanation:

There are many more answers to this question, but if we're asking for some kind of <em>polynomial </em>equation, any polynomial with two solutions is of degree two. If m=-5, we can also say that m+5=0, and if m=9, then m-9=0. We can combine these two statements by saying that (m+5)(m-9)=0 when either m=-5 or m=9. Expanding that equation out, we get the expanded form m^2-4m-45=0

Aliun [14]3 years ago
7 0

Answer:

There could be many but one of them is

(m+5)(m-9)=0....

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The weights (in pounds) of 18 preschool children are
ivanzaharov [21]

Answer:

22.8 and 37.5

Step-by-step explanation:

Given the

The weights (in pounds) of 18 preschool children are

32, 20, 25, 27, 31, 22, 30, 23, 44, 37, 33, 45, 41, 24, 34, 21, 39, 29

To find its 20th percentile and 75th percentile.

In ascending order we get like this

Position  X (Asc. Order)

1  20

2  21

3  22

4  23

5  24

6  25

7  27

8  29

9  30

10  31

11  32

12  33

13  34

14  37

15  39

16  41

17  44

18  45

Percentile position = (no of entries +1)20/100 = 19/5 = 3.8

Since posiiton is not integer we use interpolation method.

The value of 3.8 - 3 = 0.8 corresponds to the proportion of the distance between 22 and 23 where the percentile we are looking for is located at.

Hence 20th percentile = 22+0.8(23-22)=22.8

So answer is 22.8

----------------------

75th percentile

Percentile posiiton = 19(75)/100 = 14.25

75th percentile= 37+0.25(39-37)=37.5

6 0
3 years ago
^^^^^^^^^^^^^^^^^^^^
telo118 [61]

ANSWER

The correct answer is C

EXPLANATION

We want to find the quotient:

-  \frac{10}{19}  \div ( -  \frac{5}{7} )

We multiply by the reciprocal of the second fraction:

-  \frac{10}{19}   \times  ( -  \frac{7}{5} )

We cancel out the common factors to obtain:

-  \frac{2}{19}   \times  ( -  \frac{7}{1} )

We multiply to get

\frac{ - 2 \times  - 7}{19 \times 1}

This simplifies to :

\frac{14}{19}

The correct answer is C

7 0
3 years ago
Read 2 more answers
Which is the answer. A B C D?
Harlamova29_29 [7]

Answer:

A) T'(-2,3), U'(0,5), V'(-1,0)

5 0
2 years ago
A number c minus 4.3 is no less than 16. write this word sentence as an inequality.
aksik [14]

Answer:

c - 4.3 > 16

(hope this helps)

6 0
2 years ago
The gardener comes four times each month. Each month, Katrina writes a check, and $85.40 is deducted from her bank balance to pa
Veronika [31]

4 days earning = $85.40

so, 1 day earning will be = $85.40/4 = $21.35

Now, 11 days earning would be: $21.35 * 11 = $234.85

OPTION C IS YOUR ANSWER.

5 0
3 years ago
Read 2 more answers
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