2 years ago

Last tuesday a doughnuts store sold 20 bavarian cream, 60 glazed, 15 chocolate

Mathematics

1 answer:

Murljashka [212]2 years ago

7 0

Answer:

Step-by-step explanation:

b:g:c:r = 20:60:15:25 = 4:12:3:5

b:c = 4:3

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4{3sqaured+4(116-8(2×8))} I need to know ASAP it 9:30 where I live pls hwlp

inysia [295]

Start with 8*2=16
116-8= 108
108(16)=1728
3^2+4=13 13(1728)=22464
4(22464)=89856
The answer is 89,856

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2 years ago

Construct the 95% confidence interval for the population mean using the appropriate distributions. a. A random sample of 50 peop

SSSSS [86.1K]

Answer: 95% confidence interval would be (26.01,29.39).

Step-by-step explanation:

Since we have given that

n = 50

Mean = 27.7

Standard deviation = 6.12

We need to construct 95% confidence interval for the population.

so, z = 1.96

So, it becomes,

$\bar{x}\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=27.7\pm 1.96\times \dfrac{6.12}{\sqrt{50}}\\\\=27.7 \pm 1.69\\\\=(27.7-1.69,27.7+1.69)\\\\=(26.01,29.39)$

Hence, 95% confidence interval would be (26.01,29.39).

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3 years ago

Is -4x + y = -9 parallel to x + 4y = 12

expeople1 [14]

Answer:

YES

Step-by-step explanation:

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2 years ago

Check all the fractions that are equivalent to 100*300

V125BC [204]

Answer:

the answer

Step-by-step explanation:

of 100 *300 is 0

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2 years ago

Cindy works on the weekends at the local coffee shop. Last Saturday she worked 7.5 hours and

Arlecino [84]

Answer: H. 139.50

Step-by-step explanation:

Multiply 9 by 8 first and you get 72. Then multiply 9 by 7.5 and you get 67.5 then add 72 and 67.5 and you get 139.5 or 139.50

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2 years ago