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3 years ago

Vocabulary and Simplifying Terms- HW Name _juvi__

Mathematics

2 answers:

Digiron [165]3 years ago

6 0

1. Like terms 2. Terms that is a lot and I will finish in a bit

scoray [572]3 years ago

5 0

Answer:

1. h + 4h

a. The terms are h and 4h

b. The coefficient is 4

c. The variable is h

d. There is no constant

e. h and 4h are like terms and you can simplify this equation easily h+4h = 5h

2. 3j + 2j + 4

a. The terms are 3j, 2j and 4

b. The coefficient is 3 with the j (3j) and the other coefficient is 2 with the j (2j)

c. The variable is j.

d. The constant is 4

e. 3j and 2j are like terms.

3. 2k^2 + n - k

a. The coefficient is 2 with the k (2k^2)

b. The variables are n and k

c. There is no constant

d. 2k^2 and k are like terms

4. 5j + 3k

5. 6d - 3

6. 2k + 3

7. 6 + 4n

8. 3r

9. 15d

10. 6x + 4

11. 25 + 6x

12. 29 + 6x

Step-by-step explanation:

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Read 2 more answers

Find the 90% confidence interval for the population standard deviation given the following.

lions [1.4K]

Answer:

b. 2.01 < σ < 2.81

Step-by-step explanation:

The 90% confidence interval for the population standard deviation is calculated as:

$\sqrt{\frac{(n-1)*s^{2} }{X^2_{\alpha/2 } } }$ < σ < $\sqrt{\frac{(n-1)*s^{2} }{X^2_{1-\alpha/2 } } }$

Where n is equal to 51, s is equal to 2.34, $\alpha$ is 10%, $X^{2} _{\alpha /2}$ is the value for the Chi squared distribution with n-1 degrees of freedom that has a probability of $\alpha /2$ in the right tail and $X^{2} _{1-\alpha /2}$ is the value for the Chi squared distribution with n-1 degrees of freedom that has a probability of $1-\alpha /2$ in the right tail.

So, replacing n by 51, s by 2.34, $X^{2} _{\alpha /2}$ by 67.50 and $X^{2} _{1-\alpha /2}$ by 34.76, we get that the The 90% confidence interval is equal to:

$\sqrt{\frac{(51-1)*2.34^{2} }{67.50} } }$ < σ < $\sqrt{\frac{(51-1)*2.34^{2} }{34.76} } }$

2.01 < σ < 2.81

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3 years ago

Vocabulary and Simplifying Terms- HW Name ___juvi____

Vocabulary and Simplifying Terms- HW Name _juvi__