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Mandarinka [93]
3 years ago
10

Find the attached question.​

Mathematics
1 answer:
inessss [21]3 years ago
5 0

<u>p</u><u>=</u><u>7</u><u>0</u><u>°</u>

<u>q</u><u>=</u><u>3</u><u>2</u><u>°</u>

<u>r</u><u>=</u><u>3</u><u>8</u><u>°</u>

Answer:

Solution given:

r=38°[inscribed angle on a same arc are equal]

p=½*140°=70°[inscribed angle is half of the central angle]

<OBA=38°[base angle of isosceles triangle]

again

<C=<B[inscribed angle is half of the central angle]

70°=<OBA+q

70°=38°+q

q=70°-38°

q=32°

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Which expressions are equivalent to 12r-5?
Gekata [30.6K]

Answer:

c

Step-by-step explanation:

because u cant be wrong with going with none of the above due the fact that they could be decimals and they didn't want to write out the full number therefore making it incorrect. No need to thank me.

7 0
3 years ago
Biologists were studying the proportions of cats that had spotted markings on their fur in two populations of cats, C and F. An
alexandr1967 [171]

Answer:

If the proportions of all cats with spotted markings is the same for both populations, the probability of observing a sample difference of at least 0.62 is 0.01.

Step-by-step explanation:

p-value is the probability of observing a result which is at least as extreme as we calculated in our actual workings, assuming the Null hypothesis to be true.

The calculate p-value is 0.01. In the question statement we are given that the alternate hypothesis is:

"Population Proportions are not equal"

Since, Null and Alternate Hypothesis are negations of each other, the Null Hypothesis would be:

"Population Proportions are equal"

We assume the null hypothesis to be true, perform the tests on the sample and obtain a result.

The results we obtained is:

The sample difference is 0.62

Fitting all this data, in the definition of p value tell us that:

The probability of obtaining a sample difference of atleast 0.62 is 0.01, if the population proportions are same.

This matches with the option B. Therefore, the correct answer is:

If the proportions of all cats with spotted markings is the same for both populations, the probability of observing a sample difference of at least 0.62 is 0.01.

3 0
3 years ago
What is 16.92 x 8.4 how much is the sum.
lana66690 [7]

16.92 × 8.4 = 142.128

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6 0
3 years ago
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I need this asap!<br> Will mark as brainlyest
Andrews [41]

Answer:

<em>I'm not 100% sure but I think 3 days.</em>

Step-by-step explanation:

he clears 2/3 acres every 2 days. 1 day would be half of that, which is 1/3. add those together and you get 1 acre. add the days together and you get 3 days.

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7 0
3 years ago
The population of the world in 1987 was 5 billion and the annual growth rate was estimated at 2 percent per year. Assuming that
Vinvika [58]

Answer:

Population in 1998 year = 6.22 billion

Step-by-step explanation:

Given:-

- The population in year 1987, Po = 5 billion

- Growth rate, r = 2%

- World population follows an exponential growth model

Find:-

The projected world population in 1998.

Solution:-

- The exponential growth model is mathematically expressed as:

            Population in x year = Po* ( 1 + r/100)^( x - xo )

Where,   xo: The base year.

- Plug in the values and solve for the projected population in year 1998:

            Population in 1998 year = 5,000,000,000* ( 1 + 2/100)^( 1998 - 1987 )

            Population in 1998 year = 5,000,000,000* ( 1 + 0.02)^( 11 )

                                                     = 5,000,000,000* ( 1.02 )^( 11 )

                                                     = 6.22 billion                                

8 0
3 years ago
Read 2 more answers
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