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SVETLANKA909090 [29]
3 years ago
5

Is the product the same when multiplying 22×(-5) and multiplying (-5)×22

Mathematics
1 answer:
uranmaximum [27]3 years ago
4 0

Answer:

Yes they should be the same.

Step-by-step explanation:

The answers should always be the same as long as the negative stays with the 5 and the 22 remains positive.

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Explain how you can use multiplication to show that two-fourths and four-eighths are equivalent.
ANTONII [103]

Answer:

2/4 and 4/8 are equivalent because you can use the butterfly method of multiplication. Meaning you multiply the numerator by the other fractions denominator and vis-versa.

Step-by-step explanation:

2 x 8 = 16

4 x 4 = 16

3 0
3 years ago
What is the best definition of marginal cost?
DIA [1.3K]

Answer: A: the possible income from producing an additional item.

Step-by-step explanation: The actual definition of marginal cost is the cost added by producing one additional unit of a product of service.

4 0
3 years ago
Read 2 more answers
if 368 teenagers in a population of 4,310 report that they have smoked at least one cigarette during the past year, to one decim
allochka39001 [22]
Divide the amount of teenagers that smoked by the total population:

368 \div 4310 = 0.0853

Multiply this decimal by 100 to convert into a percentage:

0.0853 \times 100 = 8.53

To round to the nearest decimal place, look at the hundredths value:

8.53
3 > 5
8.53 -> 8.5

8.5% of teenagers reported that they smoked at least one cigarette.
4 0
3 years ago
An automotive manufacturer has developed a new type of tire that the research team believes to increase fuel efficiency. The man
Stolb23 [73]

Answer:

One tailed

To conclude if there is an increase in the mean gas mileage due to new type of tire.

Step-by-step explanation:

We are given the following in the question:

The manufacture wants to compare increase in the mean gas mileage.

Population mean = 32 miles per gallon

Thus, the manufacture could carry a hypothesis test to compare mean.

A one tailed test (z-test or t-test) based on the information can be used to compare the increase in mean.

Thus,

The automotive manufacturer should perform a one tailed hypothesis test to conclude if there is an increase in the mean gas mileage due to new type of tire.

6 0
3 years ago
What is the best estimate of 687 × 391?<br><br> 280,000<br> 210,000<br> 240,000<br> 180,000
ra1l [238]

Answer:

Step-by-step explanation:

Estimating a sum by rounding to get the best estimate is the goal of this lesson. Notice that we try to estimate. We don't need to have an exact answer!

Notice that for numbers with two digits, there can only be one estimate because you can only round to the tens place.

Estimate the following sums: 36 + 21, 74 + 15, and 85 + 24

36 + 21 = 40 + 20 = 60

74 + 15 = 70 + 20 = 90

7 0
2 years ago
Read 2 more answers
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