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4vir4ik [10]
3 years ago
12

Determinati numerele natrale x care sunt soltii ale incuatiilor:

Mathematics
1 answer:
Studentka2010 [4]3 years ago
6 0
Um.. can you translate that to English..
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Average national teachers salaries can be modeled using the equation y=9.25(1.06)^n , where y is the salary in thousands of doll
kiruha [24]
y=9.25(1.06)^{n}
Plug in n to find y.
n would be 50 because 2020-1970=50.

Use order of operations to solve.
y=9.25(1.06)^{50} \\ y=9.25(18.42) \\ y=170.39

Since y is the salary in thousands, multiply 170.39 by 1000.
170.39*1000=17039

A teacher can expect to have about $17,039 as a salary in the year 2020.
6 0
3 years ago
Now we are testing to see whether taking a vitamin supplement each day has significant health benefits. There are no (known) har
ZanzabumX [31]

Answer:

Concluding that people should take vitamin supplement each day when they don't help.            

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

Taking a vitamin supplement each day has significant health benefits and does not have any harmful side effects.

Null hypothesis:

Taking a vitamin supplement each day does not have have significant health benefits.

Alternate hypothesis:

Taking a vitamin supplement each day have have significant health benefits.

Type I error:

  • It the error of rejecting the a true null hypothesis.

So error I for this situation would be concluding that people should take vitamin supplement each day when they don't help.

3 0
3 years ago
What is one intothirds -4/5
Sphinxa [80]

Answer: 13/15


Step-by-step explanation:

1  2/3 - 4/5

Use LCD or least common denominator:

1  10/15 - 12/15 =

25/15 - 12/15 =

13/15

7 0
4 years ago
How to solve -3+-8 this ??
umka21 [38]
The awnser would be -11. A minus and a minus creates a plus so it adds up to -11
3 0
3 years ago
Read 2 more answers
a counter top is in the shape of a trapezoid. The lengths of the bases are 70 1/2 and 65 1/2 inches long. The area of the counte
nekit [7.7K]
For the trapezoid, the equation used to solve for the area is,
                           A = (0.5)(b₁ + b₂)(h)
where b₁ and b₂ are the measure of the bases and h is the height. Substituting the known values above,
                          1224 = (0.5)(70.5 + 65.5)(h)
                                     h = 18
Thus, the height of the counter top is 18 inches. 
7 0
3 years ago
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