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garik1379 [7]
3 years ago
8

Find the geometric mean of -1/10 and -1/40

Mathematics
2 answers:
Alinara [238K]3 years ago
4 0
The geometric mean<span> of the two numbers is the square root of their product. </span>The geometric mean<span> of 25 and 9 is 15. So, </span>the geometric mean<span> of the three numbers is the cube root of their product.</span>
PilotLPTM [1.2K]3 years ago
4 0
Cube root of their product
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Please answer correctly !!!!!!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!
Sergeeva-Olga [200]

Answer:

q = 14

General Formulas and Concepts:

  • Order of Operations: BPEMDAS
  • Equality Properties
  • Complementary Angles: Angles that add up to 90°

Step-by-step explanation:

<u>Step 1: Set up equation</u>

<em>The 2 angles must add up to 90°.</em>

(4q - 5)° + 39° = 90°

<u>Step 2: Solve for </u><u><em>q</em></u>

  1. Combine like terms:                    4q + 34 = 90
  2. Subtract 34 on both sides:          4q = 56
  3. Divide both sides by 4:                q = 14
6 0
3 years ago
. Compute the required sample size given the required confidence in the sample results is 99.74% (Z score of 3). The level of al
Shtirlitz [24]

Answer:

900 sample size

Step-by-step explanation:

To determine the sample size for a proportion, the margin of error formula is used to determine this:

E=Z_{\frac{\alpha}{2} }*\sqrt{\frac{\hat p \hat q}{{n} }

n=\hat p \hat q*(\frac{Z_{\frac{\alpha}{2} }}{E} )^2

Where p is the proportion, E is the margin of error, n is the sample size, q = 1 - p, Z_\frac{\alpha }{2} is the z score.

Since the proportion is not known, the sample size needed to guarantee the confidence interval and error is at p = 0.5 and q = 1 - p = 1 - 0.5 = 0.5

E = 5% = 0.05, Z_\frac{\alpha }{2} = 3. Hence:

n=0.5*0.5*(\frac{3}{0.05} )^2\\\\n = 900

6 0
3 years ago
If your sample mean is 25, your population average is 5, and your standard error of the mean is 10, what is your observed z valu
Ksivusya [100]
10 divided by 5 times 10

3 0
3 years ago
2 (5y-4)&gt;32<br> Solve the inequality for y.
scoray [572]

Answer:

y > 4

Step-by-step explanation:

2 (5y-4)>32

Divide each side by 2

2/2 (5y-4)>32/2

5y-4 > 16

Add 4 to each side

5y-4+4 > 16+4

5y > 20

Divide each side by 5

5y/5 > 20/5

y > 4

5 0
3 years ago
Read 2 more answers
Simplify the expression 43 + 2(3 − 2)
Sonja [21]

Answer:

))))))

Step-by-step explanation:

43+2(3-2)=43+2*3-2*2=43+6-4=45

8 0
3 years ago
Read 2 more answers
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