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3 years ago

What is m help pls !!!

Mathematics

1 answer:

34kurt3 years ago

5 0

Answer:

32 degrees.

Step-by-step explanation:

So every triangle =180 degrees.

Firstly, 14 + 45 = 59

Secondly, 180 - 59 = 121

so angle AEB = 121 degrees.

Using vertical angles theorum, angles AEB and CED are equal to each other

so CED = 121 degrees.

121 + 27 = 148

then 180 - 148 = 32

Angle D = 32 degrees

(might want to fact check this I am pretty tired

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olasank [31]

Answer:

120strip

Step-by-step explanation:

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2 years ago

10. How many three-topping pizzas can be ordered from the list of toppings below? Did you calculate the number of permutations o

Nimfa-mama [501]

Step-by-step explanation:

Total numbers of pizza toppings = 12

Number of three topping pizzas can be ordered are:

$P^{n}_{k}=\frac{n!}{(n-k)!}$

where = n = number of elements

k = number of elements choosen

n= 12 , k = 3

$\frac{12!}{(12-3)!} =\frac{12\times 11\times 10\times 9!}{9!}= 1,320$

We calculated the number of permutations. We made this choice because in permutation order of element matters but in combination its not.

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3 years ago

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Answer:

Step-by-step explanation:

Break the shape into smaller shapes, then solve:

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2 years ago

What fraction is greter than 3 - 5

Julli [10]

Answer:

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Step-by-step explanation:

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2 years ago

Two workers finished a job in 12 days. How long would it take each worker to do the job by himself if one of the workers needs 1

Lorico [155]

Two workers finished a job in 7.5 days.

How long would it take each worker to do the job by himself if one of the workers needs 8 more days to finish the job than the other worker?

let t = time required by one worker to complete the job alone

then

(t+8) = time required by the other worker (shirker)

let the completed job = 1

A typical shared work equation

7.5%2Ft + 7.5%2F%28%28t%2B8%29%29 = 1

multiply by t(t+8), cancel the denominators, and you have

7.5(t+8) + 7.5t = t(t+8)

7.5t + 60 + 7.5t = t^2 + 8t

15t + 60 = t^2 + 8t

form a quadratic equation on the right

0 = t^2 + 8t - 15t - 60

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Factor easily to

(t-12) (t+5) = 0

the positive solution is all we want here

t = 12 days, the first guy working alone

then

the shirker would struggle thru the job in 20 days.

8 0

2 years ago

Read 2 more answers