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2 years ago

I need help right now with homework plz.both of them are on the same homework page.

Mathematics

2 answers:

quester [9]2 years ago

5 0

1. 64 π
2. 10 π
3. 31.4
4. 30 π
5. 75.36
6. 150.796447372
7. 128π
8. 100 feet
9. Using the pi symbol since it represents the number multiplied by all the decimals of pi and not a rounded version like 3.14

katovenus [111]2 years ago

4 0

Answer:

For the first one I believe it is 90

Step-by-step explanation:

All I did to solve this was do 180 which is the diameter and divide by 2

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3. The cost of the city permits needed to build this building is 150,000 no matter how many floors with

natima [27]

Answer:

$P(x) = 150000$

$Slope = 0$

Step-by-step explanation:

Given

$Cost = 150000$

Solving (a): The cost function:

From the given parameter, it shows that the number of floor has no effect on the floors.

So, represent the floors with x.

The cost function is:

$P(x) = 150000$

Solving (b): The slope and its interpretation

A function is represented as:

$f(x) = b + mx$

Where:

$m=slope$

By comparing: $f(x) = b + mx$ to $P(x) = 150000$

$m = 0$

So:

$Slope = 0$

<em>What it means is that, no matter the number of floors, the cost remains unchanged.</em>

4 0

2 years ago

Which of the following are some of the possible soulitions for the inequality -9w < -54

Alekssandra [29.7K]

the answer

w < 6

Step by Step

-9w < -54

w < -54/-9

w< 6

4 0

2 years ago

Hii i’ll give brainliest please help thanks :)

Juli2301 [7.4K]

Answer:

i think its b

Step-by-step explanation:

that was on my test and i do not remember what anwer i put

3 0

2 years ago

Previous Question Question 14 of 20 Next Question A company randomly surveys 15 VIP customers and records their customer satisfa

Ann [662]

Answer:

71.4699, 81.7301.

Step-by-step explanation:

So, the following are the scores: 74

$Let,\;the\;total\;sum\;of\;the\;scores\;be:\sum x =1149$

$Then,\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\sum x^2=89795$

The length of the score : 15

Then, let the size of the scores be n : 15.

Then, we have to find the mean.

$\bar{x}=\frac{\sum x}{n}$

$=\frac{1149}{15}=76.6$

$Then,\;we\;have\;to\;find\;standard\;deviation:S=\sqrt{\frac{\sum x^2-n.(\bar{x})^2}{n-1} }$

$=\sqrt{\frac{89795-15\times(76.6)^2}{15-1} }=11.2808$

$The\;degree\;of\;freedom:n-1=14$

$So,\;the\;significant\;level:\alpha=1-0.90=0.10$

$and\;the\;critical\;value:t_{\frac{\alpha}{2} }=1.7613$

$Finally:\\=\bar{x}\;\pm\;t_{\frac{\alpha}{2} }\;\frac{S}{\sqrt{n} }\\=(71.4699, 81.7301)$

6 0

2 years ago

Y=f(x)=(1/9)^x find f(x) when x=(1/2)

tatyana61 [14]

Answer:

$\frac{1}{3}$

Step-by-step explanation:

In this question, you would solve the for f(x) by plugging in the given value to x.

Solve:

$\frac{1}{9}^\frac{1}{2}$

Distribute the exponent to the numerator and denominator.

$\frac{1^\frac{1}{2}}{9^\frac{1}{2}}$

Simplify.

$\\\\\frac{1^\frac{1}{2}}{9^\frac{1}{2}}\\\\9^\frac{1}{2}=3\\\\\frac{1^\frac{1}{2}}{3}}\\\\$

Use the $1^a = 1\,\text{}$ rule for the numerator:

$\frac{1}{3}$

Your final answer would be $\frac{1}{3}$

8 0

2 years ago