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3 years ago

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Which number line best shows the position of square root of 7? Number line with numbers negative 4, negative 3, negative 2, nega

tive 1, 0, 1, 2, 3, 4 labeled. A dot is made at 1.7 and labeled as square root of 7. Number line with numbers negative 4, negative 3, negative 2, negative 1, 0, 1, 2, 3, 4 labeled. A dot is made at 2.6 and labeled as square root of 7. Number line with numbers negative 4, negative 3, negative 2, negative 1, 0, 1, 2, 3, 4 labeled. A dot is made at 3.5 and labeled as square root of 7. Number line with numbers negative 4, negative 3, negative 2, negative 1, 0, 1, 2, 3, 4 labeled. A dot is made at 4.5 and labeled as square root of 7.

2 answers:

kiruha [24]3 years ago

7 0

Answer:

Number line with numbers negative 4, negative 3, negative 2, negative 1, 0, 1, 2, 3, 4 labeled. A dot is made at 2.6 and labeled as square root of 7

Step-by-step explanation:

* Lets explain how to solve this problem

- We want to know the position of √7 on the number line, then:

1- Square the √7

# (√7)² = 7

2- Search 7 is between which two square numbers

# 7 is between 4 and 9 which are square numbers

3- ⇒ 4 < 7 < 9 ⇒ take √ for all

# 2 < √7 < 3

∴ The value of √7 is between 2 and 3

* Lets look to the answer to find the correct answer

∵ The first answer is:

A dot is made at 1.7 and labeled as square root of 7

∵ 1.7 is not between 2 and 3

∴ The first answer is not true

∵ The second answer is:

A dot is made at 2.6 and labeled as square root of 7

∵ 2.6 is between 2 and 3

∴ The second answer is true

∴ Number line with numbers negative 4, negative 3, negative 2,

negative 1, 0, 1, 2, 3, 4 labeled. A dot is made at 2.6 and labeled

as square root of 7

ELEN [110]3 years ago

7 0

Answer:

between 2 and 3

Step-by-step explanation:

hope this helps

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bixtya [17]

Answer:

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Step-by-step explanation:

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2 years ago

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Alex777 [14]

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3 years ago

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motikmotik

Answer:

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Step 1:

We will work on the left-hand side, we will have

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Step 2:

By writings an expression, we will have

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Here, we will use the definition of subtraction

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Step 3:

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5 0

1 year ago

PLEASE HELP PLEASE 9TH GRADE MATH

wel

Answer:

A

Step-by-step explanation:

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4 0

3 years ago

Scores from an exam are normally distributed with a mean of 85 and a standard deviation of 5. Suppose 188 students take the exam

charle [14.2K]

The mean is $\mu=85$ and standard deviation is $\sigma=5$ . Then the variable $X\sim N(85,5)$ .

Use substitution $Z=\dfrac{X-\mu}{\sigma}=\dfrac{X-85}{5}$ , then the variable $Z\sim N(0,1)$ .

The probability $Pr(X>80)$ can be calculated in the following way:

for X=80, $Z=\dfrac{80-85}{5} =-1$ and $Pr(X>80)=Pr(Z>-1)$ . From the diagram $Pr(Z>-1)=0.34+0.34+0.135+0.025=0.84$ .

Conclusion: if 188 students take the exam, then 188·0.84=157.92 (157) would receive a score above 80

4 0

3 years ago

Read 2 more answers