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liberstina [14]
3 years ago
11

SOMEONE PLZ HALP ME ON THIS ASAP! A fountain is made up of two semicircles and a quarter circle. Find the perimeter of the fount

ain. Round your answer to the nearest tenth.

Mathematics
1 answer:
Klio2033 [76]3 years ago
7 0
C=20ft x pie\2 +20ft x pie =20ft x 3pie\2
  c=94.248ft





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The population of a certain species of fish in a lake has a relative growth rate of 1-2%. It is estimated the population in the
hichkok12 [17]

Answer:

Fish Population The population of a certain species of fish has a relative growth rate of 1.2 %per year. It is estimated that the population in 2000 was 12 million. (a) Find an exponential model  for the population tyears after 2000 . (b) Estimate the fish population in the year 2005  (c) Sketch a graph of the fish population.

Step-by-step explanation:

5 0
3 years ago
Put these fraction pairs to &lt; &gt; or =. Please answer<br><br> 1. 1/6 ? 1/8<br><br> 2. 2/3 ? 4/6
emmainna [20.7K]
#1. 1/6>1/8

#2. 2/3=4/6
5 0
3 years ago
In 2008, data from the Center for Disease Control revealed that 28.5% of all male teenagers, aged 18-19 and attending U.S. colle
m_a_m_a [10]

Answer:

a) H0 : u = 28.5%

H1 : u < 28.5%

b) critical value = - 1.645

c) test statistic Z= - 1.41

d) Fail to reject H0

e) There is not enough evidence to support the professor's claim.

Step-by-step explanation:

Given:

P = 28.5% ≈ 0.285

X = 210

n = 800

p' = \frac{X}{n} = \frac{210}{800} = 0.2625

Level of significance = 0.05

a) The null and alternative hypotheses are:

H0 : u = 28.5%

H1 : u < 28.5%

b) Given a 0.05 significance level.

This is a left tailed test.

The critical value =

-Z_0.05 = -1.645

The critical value = -1.645

c) Calculating the test statistic, we have:

Z = \frac{p' - P}{\sqrt{\frac{P(1-P)}{n}}}

Z = \frac{0.2625 - 0.285}{\sqrt{\frac{28.5(1-28.5)}{800}}}

Z = -1.41

d) Decision:

We fail to reject null hypothesis H0, since Z = -1.41 is not in the rejection region, <1.645

e) There is not enough evidence to support the professor's claim that the proportion of obese male teenagers decreased.

5 0
4 years ago
Write an equation for the description.
vfiekz [6]

Answer:

121=6w

Step-by-step explanation:

Formula for perimeter of a rectangle:

P=2l+2w

w = width

l = length

Since the length is twice the width,

l=2w.

So, plugging these values into the formula, as well as the given perimeter of 121 feet, we get,

121 = 2(2w)+2w

And after some simplification, we are left with,

121 = 6w

8 0
3 years ago
I need help please and i need work shown
velikii [3]

Answer:

<VUT = 50

Step-by-step explanation:

Tangent Chord Angle = 1/2 Intercepted Arc

< VUT = 1/2 (100)

<VUT = 50

3 0
3 years ago
Read 2 more answers
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