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ikadub [295]
3 years ago
9

How do I do a ratio?​

Mathematics
1 answer:
Kamila [148]3 years ago
6 0
A ratio is comparing one thing to another (numbers in this case). You can write ratios in many ways
here’s three different ways.
There are four girls and and 2 boys.
The ratio of girls to boys is:
4:2
4 to 2
4/2

*THE RATIO MUST ALWAYS BE IN ORDER!!! If boys come first in the problem WRITE THE BOYS NUMBER FIRST! If girls come first, WRITE THE GIRLS FIRST IN THE RATIO!!! (That’s a very common mistake) hope this helps!
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Use the table of systolic blood pressures (in mm Hg) in each arm
e-lub [12.9K]

Answer:

The 90% confidence interval would be given by (63.330;81.070)

Step-by-step explanation:

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

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Let put some notation

x=left arm , y = right arm

x: 175 169 182 146 144

y: 102 101 94 79 79

Since the Confidence is 0.90 or 90%, the value of a = 0.1 and a/2= 0.05we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.05,4)".And we see that ta/2= 2.13

3 0
2 years ago
Please help me with this homework
Agata [3.3K]

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-14.2, -7.8, 12.6, 15.3

Step-by-step explanation:

7 0
2 years ago
The graph of a logarithmic function is shown below
LenaWriter [7]
This represents the function : y = log₆ (x).
Proof:
Rewrite this logarithmic function into an exponential form:

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1 = 6⁰ = 1 (true)

6 = 6¹ True, then this confirm that the graph equation is  y = log₆ (x)
4 0
3 years ago
Read 2 more answers
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kolbaska11 [484]
The answer is 55 degrees
8 0
3 years ago
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Convert 50 feet per second to miles per hour.
AleksAgata [21]
FIrst we know that
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Which means that

50 Ft = 50/5280 miles




So the conversion 
(5/5280 miles ) / (1/3600)

= 5/5280 miles x 3600

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3 years ago
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