2 years ago

The figure shows the dimensions of a sail for a model boat.

Mathematics

2 answers:

RSB [31]2 years ago

7 0

Answer:

21.4 is correct!

(just took the quiz)

salantis [7]2 years ago

5 0

See the attached picture for answer

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A triangle with sides 40 feet 50 feet and 60 feet . On a drawing 1 inch equals 10 feet how long are the sides of the triangle on

natulia [17]

40/10=4

50/10=5

60/10=6

the triangle of the drawing has sides of 4 inch 5 inch and 6 inch

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2 years ago

In a survey of 23312331 adults, 730730 say they believe in UFOs. Construct a 99 %99% confidence interval for the population pro

serg [7]

Answer:

0.288 < p < 0.338

Step-by-step explanation:

We have 2331 adults polled and 730 said they believe in UFOs. We are to construct a 99% confidence interval for the population proportion. We are told to round to 3 decimal places as needed.

We need to find p-hat and q-hat

p-hat = 730/2331 = 0.313

q-hat = 1 - p-hat = 1 - 0.313 = 0.687

Since the sample size is greater than 30, we use a z-value for 99% confidence, which is 2.575

See attached photo for the construction of the confidence interval

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3 years ago

The field hockey team is holding several fundraisers to save up enough money to buy team jackets. Babysitting earns $6 per hour

Tamiku [17]

I think it's B... Hope this helps!

7 0

2 years ago

Please solve this question on rationalising denominators showing all working <3

Komok [63]

Step-by-step explanation:

denominators showing all working <3

8 0

2 years ago

Simplify the expression

yaroslaw [1]

$\bf ~~~~~~~~~~~~\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad 
a^n\implies \cfrac{1}{a^{-n}}
\\\\
-------------------------------\\\\
5^{-2}\div 5^4\implies \cfrac{5^{-2}}{5^4}\implies \cfrac{1}{5^25^4}\implies \cfrac{1}{5^{2+4}}\implies \cfrac{1}{5^6}\implies \cfrac{1}{15625}$

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3 years ago