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sineoko [7]
3 years ago
10

How many questions I have to ask?​

Mathematics
1 answer:
anygoal [31]3 years ago
4 0

Answer:

<u>p</u><u> </u><u>is</u><u> </u><u>1</u><u>6</u>

Step-by-step explanation:

p \:  \alpha  {(q + 2)}^{2}

introduce a constant on a right hand side:

p = k {(q + 2)}^{2}  -  -  - eqn \: (a)

[ when q is 1, also p is 1 ]

1 = k(1 + 2) {}^{2}  \\ 1 = 9k \\ k =  \frac{1}{9}

substitute for k in eqn (a):

p =  \frac{1}{9} (q + 2) {}^{2}

so, when q is 10:

p =  \frac{1}{9} (10 + 2) {}^{2}  \\  \\ p =  \frac{1}{9} (144) \\  \\ p = 16

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masya89 [10]
<span>B) 84 + z = 180, since 42*2=84, 180-84=96, z=96</span>
5 0
4 years ago
Read 2 more answers
Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i
Pavlova-9 [17]

Answer:

\bar X = \frac{Lower +Upper}{2}

\bar X= \frac{1.9+3.3}{2}= 2.6

And the margin of error with this one:

\bar X = \frac{Upper-Lower}{2}

ME = \frac{3.3-1.9}{2}= 0.7

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean \mu. And we can estimate this parameter with a confidence interval given by this formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

\bar X = \frac{Lower +Upper}{2}

\bar X= \frac{1.9+3.3}{2}= 2.6

And the margin of error with this one:

\bar X = \frac{Upper-Lower}{2}

ME = \frac{3.3-1.9}{2}= 0.7

7 0
4 years ago
What is the value of the expression when n=7
STALIN [3.7K]
Can you tell us what the expression is in the question?
4 0
3 years ago
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Find the surface area S of the following cylinder.
Tanya [424]

Answer:

384π

Step-by-step explanation:

From the diagram,

Diameter ( d ) = 16

Height ( h ) = 16

To find : Surface area of Cylinder = ?

Radius ( r ) = ?

Formula : -

r = d / 2

r = 16 / 2

r = 8

Formula : -

Surface area of Cylinder = 2πr ( r + h )

Surface area of Cylinder = 2πr ( r + h )

= 2π x 8 ( 8 + 16 )

= 16π x 24

Surface area of Cylinder = 384π

4 0
3 years ago
Benito made punch with 26 ounces of grape juice, 38 ounces of apple juice, and 52 ounces of lemon sparkling water. Then he made
natita [175]
  26
  38
+52
---------
  116

Add all of the numbers because they are like-terms (because they are all ounces)

he made 8 ounce servings, so    116/8 = 14.5  there are 4 ounces left
6 0
3 years ago
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