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nexus9112 [7]
3 years ago
12

SOMEONE HELP ME PLEASE

Mathematics
1 answer:
denis-greek [22]3 years ago
4 0
10)2x+2=5x-19
-3x=-21
x=21/3
x=7

11)
x+8=3x-14
-2x=-22
x=11
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26,000 rounded to NEAREST ten thousand
oksano4ka [1.4K]
30,000, because if you look in the 6 in the thousands place it is over 5 so you round up
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3 years ago
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Please help me solve? (m3n + 8)(m3n - 5) multiplying polynomial by polynomial
ruslelena [56]

The final result should be m^{6}n^{2}  - 3m^{3}n - 40.

In order to multiply any polynomials, use the pattern FOIL (which stands for first, outer, inner, last). You multiply what they ask you to at each step.

First - The first terms in both parenthesis.

m^{3}n * m^{3}n = m^{6}n^{2}

Outer - The terms on the outside of both parenthesis.

m^{3}n * -5 = -5m^{3}n

Inner - The terms on the inside of both parenthesis.

m^{3}n * 8 = 8m^{3}n

Last - the last numbers in each parenthesis.

8 * - 5 = - 40

Now we put all the answers together and simplify like terms,

m^{6}n^{2} + -5m^{3}n + 8m^{3}n - 40

m^{6}n^{2} - 3m^{3}n - 40

8 0
3 years ago
How many fluid ounces are in 3 quarts?
puteri [66]
There are 96 fluid ounces in 3 quarts
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3 years ago
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Day Care Tuition A random sample of 50 four-year-olds attending day care centers provided a yearly tuition average of $3987 and
olasank [31]

Answer:

We have to find the 90% confidence interval for the mean

                 Given sample size  

                        Sample mean  

Population standard deviation  

Here the confidence level is 90% then  

                                                  And  

The 90% confidence interval is  

Here  is the critical value at 0.05

From the tables  

Now the 90% confidence interval is =

                                                                                     =

                                                                                     =(3840.44, 4133.56)

Hence the 90% confidence interval for the mean is (3840.44, 4133.56)

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3 years ago
does the equation 4(2x+3)=16x+12-8x have one solution, infinitely many solutions, no solution, or two solutions.
a_sh-v [17]

Answer:

Infinite number of solutions

Step-by-step explanation:

Use distributive property to eliminate the parenthesis on the left:

8 x + 12 = 16 x + 12 - 8 x

combine like terms on the right:

8x+ 12 = 8 x + 12

subtract 12 from both sides

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subtract 8 x  from both sides

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This is a true statement that takes place for whatever x-value we use in the original equation. Therefore, the equation has infinite number of solutions (any real number "x")

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3 years ago
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