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Kay [80]
3 years ago
10

What is the following sum? 4 sqrt 5 + 2 sqrt 5

Mathematics
2 answers:
Nastasia [14]3 years ago
6 0
The answer is 6 sqrt 5 => 13.42
GuDViN [60]3 years ago
5 0

Answer:

C on edge

6 sqrt 5

Step-by-step explanation:

You might be interested in
What is the peremeter and area of the photo below, also please show work .
Nuetrik [128]

Answer:

102.849

Step-by-step explanation:

the perimeter of the square is just 4 × 18.

for the semi-circle the perimeter should be R(pi + 2)

so the perimeter of a semi circle is 30.849

add both values for the final answer which is 102.849

3 0
2 years ago
24 is 120% of what number?
laiz [17]
120÷100= 1.2
24÷1.2= 20
24 is 120% of 20
4 0
3 years ago
Lexi needs to buy a hundred and five bases for a party each package has six faces how many packages should Lexi by show work
Illusion [34]
105 divided by 6 equals 17. 5
She should buy 18 packages
7 0
3 years ago
High-power experimental engines are being developed by the Stevens Motor Company for use in its new sports coupe. The engineers
Maurinko [17]

Answer:

The 99% of a confidence interval for the average maximum HP for the experimental engine.

(536.46, 603.54)

Step-by-step explanation:

<u><em>Step:-1</em></u>

Given that the mean of the Population = 540HP

Given that the size of the sample  'n' = 9

Given that the mean of the sample = 570HP

Given that the sample standard deviation = 30HP

<u><em>Step(ii):-</em></u>

<u><em>Degrees of freedom = n-1 =9-1 =8</em></u>

<u><em>t₀.₀₀₅ = 3.3554</em></u>

The 99% of a confidence interval for the average maximum HP for the experimental engine.

(x^{-} - t_{\frac{0.01}{2} ,8} \frac{S.D}{\sqrt{n} } ,x^{2}  + t_{\frac{0.01}{2},8 } \frac{S.D}{\sqrt{n} } )

(570-3.354\frac{30}{\sqrt{9} } , 570+3.354\frac{30}{\sqrt{9} } )

(570 - 33.54 , 570+33.54)

(536.46 , 603.54)

<u><em>Final answer</em></u> :-

<em>The 99% of a confidence interval for the average maximum HP for the experimental engine.</em>

<em>(536.46, 603.54)</em>

<em></em>

4 0
3 years ago
A map is drawn with a scale of 1/2 inch to 5 actual. miles. If the map distance is 8 inches, whats the actual. distance
gavmur [86]
1/2 in. = 5 miles
1 in. / 2 = 1/2 in.
8 * 2 = 16
16 * 5 = 80 miles
5 0
3 years ago
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