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Nitella [24]
3 years ago
10

F(×)= 5×-10. What is the vaule of f^-1 (-3)

Mathematics
1 answer:
Katena32 [7]3 years ago
4 0
If I’m not mistaken I think this is what you’re asking for?

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What is 0.225 in fraction form
Temka [501]
<span>Step 1: 0.225 = 225⁄1000</span> 
<span>Step 2: Simplify 225⁄1000 = 9⁄40</span><span> </span>
3 0
3 years ago
Read 2 more answers
5(x+7)^2=245<br> find the steps
kakasveta [241]

Answer:

0,-14

Step-by-step explanation:

5(x+7)²=245

divide both sides by 5

(x+7)²=49

Taking the square root of both sides

x+7=±7

Either x+7=7

subtract 7 from both sides

x+7-7=7-7

x=0

or

x+7=-7

subtract 7 from both sides

x+7-7=-7-7

x=-14

8 0
3 years ago
QUESTION 4<br> Round the following number to two significant digits: 137,426.9
Mkey [24]
137,426.9 is 140,000 when rounded to 2 sig figs
8 0
2 years ago
Hypothesis testing on samples with fewer than 30 participants can be carried out by using the t-value for the corresponding leve
Eva8 [605]

Answer: true

Step-by-step explanation:

Z-tests are statistical calculations that can be used to compare the population mean to a sample mean The z-score is used to tellsbhow far in standard deviations a data point is from the mean of the data set. z-test compares a sample to a defined population and is typically used for dealing with problems relating to large samples (n > 30). Z-tests can also be used to test a hypothesis. Z-test is most useful when the standard deviation is known.

Like z-tests, t-tests are used to test a hypothesis, but a t-test asks whether a difference between the means of two groups is not likely to have occurred because of random chance. Usually, t-tests are used when dealing with problems with a small sample size (n < 30).

Both tests (z-tests and t-tests) are used in data with normal distribution (a sample data or population data that is evenly distributed around the mean).

3 0
3 years ago
Two pound bags of candy are being used to fill containers that hold 1 1/2 pounds each. How many containers can be filled by each
melamori03 [73]

Answer:

4 Containers Can Be Filled By Each Two Pound Bag Of Candy .

Step-by-step explanation:

GIven   Two Pound Bag Of Candy Used To Fill Container That hold 1\frac{1}{2} Pound Each .

Now There are 4 Container of Capacity 1\frac{1}{2}  Pound Needed To fill Exactly 3 two Pound Bags .

Thus 4 container have Total capacity Of 6 Pound . Which Is Easily Filled By The 3 two Pound Bags . ( Without Any Loss )

3 0
3 years ago
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