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3 years ago

How many terms are in the expression shown below?

Mathematics

2 answers:

Softa [21]3 years ago

7 0

Answer:

The correct answer is 5.

Step-by-step explanation:

When solving a mathematical operation, the correct thing is to separate in terms so as not to obtain an erroneous result.

The only signs that separate terms are addition and subtraction. <u>You cannot separate a term in a division or multiplication. </u>

If you had operation 6 + 4: 2 + 1 =

The right thing would be for you to separate in terms of addition. Look at the result:

6 + 2 + 1 = 9

And see what would have happened if we separated it in the division:

10: 2 + 1 =

5 + 1 = 6

The results obtained are different. Therefore, if we obtained 6, the operation would be wrong.

Now, we have the following expression:

x2 - 10xy + 3y + y2 - 1

And we must remember that <u>between each incognita and a number there is a sign of multiplication</u>, although we do not see it written.

Therefore, the correct terms would be the following:

-10xy

-1

Given this information, we can say that the number of terms in this expression is 5.

Irina18 [472]3 years ago

6 0

Answer:

Terms are the different things being added/subtracted. There are 5 terms.

Step-by-step explanation:

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Answer:

Option B)

$H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}$

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

The doctors and u=instructor claims that practicing yoga reduces blood pressure and hence is beneficial to people.

Population mean, μ = 140 mm

Sample mean, $\bar{x}$ = 139 mm

Sample size, n = 51

Sample standard deviation, s = 5 mm

Thus, we can design the null hypothesis and alternate hypothesis as

$H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}$

The null hypothesis states that the population have a blood pressure of 140 mm. The alternate hypothesis states that yoga reduces the blood pressure and the sample has a blood pressure less than 140 mm.

Thus, the correct answer is

Option B)

$H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}$

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Nutka1998 [239]

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Step-by-step explanation:

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vesna_86 [32]

Answer:

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Step-by-step explanation:

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