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2 years ago

In circle A shown below, the measure of ∠BAD is 148°:

Mathematics

2 answers:

zimovet [89]2 years ago

5 0

Answer:

Step-by-step explanation:

Remember that the subtended arc of a central angle has equal measure.

So, in this case the angle is 148°, that means the arc BD is 148°.

Now, if arc BC is 105°, it means the measure of arc CD is the difference

$arc(CD)=148\°-105\°=43\°$

Therefore, the right answer is 43°.

Bond [772]2 years ago

3 0

43 i alredy learned that in school

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kaheart [24]

Answer:

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Step-by-step explanation:

(a) Mean of the data

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1 year ago

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What is the value of this equation 38>-5x+3>18

Bond [772]

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2 years ago

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Yuki888 [10]

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2 years ago

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Solve a=2b-c for b Can someone help me

Sauron [17]

Answer:

$b=\frac{a}{2} +\frac{c}{2}$

Explanation:

While solving literal equations could be quite overwelhming, simply solve it by using normal equation solving methods.

For example, if you were to solve 2x + 3 = 9

You would add 3 on both sides and divide both sides by 2 to determine x.

Do the same thing for literal equations, and if in doubts, plug in numbers to check your work.

Step-by-step explanation:

For this problem, add c on both sides, we do this because we are aiming to eliminate the c from both sides.

a+c =2b

In order to find the value of b, divide both sides by 2, we do this because we want to get rid of the coefficient.

This should leave you with the answer of b=a/2 + c/2

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3 years ago

in a five character password the first two characters must be digits and the last three characters must be letters if no charact

Vilka [71]

Answer:

1,404,000 unique passwords are possible.

Step-by-step explanation:

The order in which the letters and the digits are is important(AB is a different password than BA), which means that the permutations formula is used to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

$P_{(n,x)} = \frac{n!}{(n-x)!}$

In this question:

2 digits from a set of 10(there are 10 possible digits, 0-9).

3 characters from a set of 26. So

$P_{10,2}P_{26,3} = \frac{10!}{8!} \times \frac{26!}{23!} = 10*9*26*25*24 = 1404000$

1,404,000 unique passwords are possible.

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2 years ago