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musickatia [10]
3 years ago
8

Ricardo possui 35 palitos de sorvete em sua coleção.Enquanto rafael possui 60.Qual a Razão entre as quantidades de palitos de so

rvete quee Rafael e Ricardo possuem
Mathematics
1 answer:
velikii [3]3 years ago
7 0

Answer:

The ratio between Rafael's sticks and Ricardo's is 0.5834

Step-by-step explanation:

In order to calculate the ratio between Rafael's ice cream sticks and Ricardo's we must take the total amount rafael has and divide it by the total amount Rafael has. Therefore this is done below:

ratio = Rafael's sticks / Ricardo's sticks

ratio = 35 / 60

ratio = 0.5834

The ratio between Rafael's sticks and Ricardo's is 0.5834

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256 km should be the answer
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3 years ago
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An IQ test is designed so that the mean is 100 and the standard deviation is 1414 for the population of normal adults. Find the
Amanda [17]

Answer:

37

Step-by-step explanation:

The first thing is to calculate critical z factor

the alpha and the critical z score for a confidence level of 90% is calculated as follows:

two sided alpha = (100% - 90%) / 200 = 0.05

critical z factor for two sided alpha of .05 is calculated as follows:

critical z factor = z factor for (1 - .05) = z factor for (.95) which through the attached graph becomes:

critical z factor = 2.58

Now we have the following formula:

ME = z * (sd / sqrt (N) ^ (1/2))

where ME is the margin of error and is equal to 6, sd is the standard deviation which is 14 and the value of z is 2.58

N the sample size and we want to know it, replacing:

6 = 2.58 * (14 / (N) ^ (1/2))

solving for N we have:

N = (2.58 * 14/6) ^ 2

N = 36.24

Which means that the sample size was 37.

5 0
3 years ago
A car is driving at a speed of 40 mi/h. What is the speed of the car in feet per minute? a. 2,400 ft/min b. 211,200 ft/min c. 3,
SCORPION-xisa [38]

Answer:

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Step-by-step explanation:

40 mi/h = (40 mi/h)×(5280 ft/mi)×(1 h)/(60 min) = 3520 ft/min

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Each conversion factor has a value of 1 (numerator = denominator), so changes the units without changing the speed.

3 0
3 years ago
There are 5.280 feet in a mile. What is the total number of feet in 6 milies?
qwelly [4]
1mile=5.280
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If this helps you plzz Mark me as brainlest...
7 0
3 years ago
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Consider the equation below.
Kamila [148]

Answer:

Option (1)

Step-by-step explanation:

\text{log}_4(x + 3)=\text{log}_2(2 + x)

\text{log}_4(x + 3)=\frac{\text{log}_{10}(x+3)}{\text{log}_{10}4}

\text{log}_2(2 + x)=\frac{\text{log}_{10}(2+x)}{\text{log}_{10}2}

System of equations can be written as,

y_1=\text{log}_4(x + 3)=\frac{\text{log}_{10}(x+3)}{\text{log}_{10}4}

y_2=\text{log}_2(2 + x)=\frac{\text{log}_{10}(2+x)}{\text{log}_{10}2}

Therefore, system of equations given in Option (1) is the correct option.

4 0
3 years ago
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