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3 years ago

Can you please help me ASAP

Mathematics

1 answer:

kap26 [50]3 years ago

3 0

Answer:

15°

Step-by-step explanation:

AB is parallel to DC and AD is parallel to BC

Therefore, if you put Angle D and Angle C together it must form 180°

If Angle C = 120°, that means Angle D = 60°

Now you subtract 45 from 60 and that gives you 15.

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3. Melissa is making a piece for a stained glass window that has the shape and measures shown below. Point Cis the center of the

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184.26 i dont exacaly know but i think it is just let me know if im right or wrong

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3 years ago

Here is an equation 2(x + 9) = -15. What are three different equations that have the same solution as that equation? Show or exp

igor_vitrenko [27]

Answer: 1) 2x+18=-15

2) -33+18

Step-by-step explanation: 1) multiply the outer number by the numbers inside the parentheses : 2 times x would = 2 because x is not by itself so it would be X=1x and you are multiplying 2x1 which = 2 and add the variable x so it would be 2×, and same with 18, you multiply 9x2 which =18 and thats how i got 2x+18 doesnt matter if i havent found the x yet because we already know what it equals to which is -15... 2) X=16.5 so to check we do 2×-16.5 which = -33 and add 18 it = -15

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3 years ago

I really need help asap

Whitepunk [10]

Https://us-static.z-dn.net/files/db5/3b4bed3bf73da55d58a77a133114bfca.jpeg

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3 years ago

20 different comic books will be distributed to five kids. (a) How many ways are there to distribute the comic books if there ar

sveta [45]

Answer:

a) 21684

b) 15504

Step-by-step explanation:

a) Distribute the comic books as follows

only to 1 kid one way but we have five kids then 5

to two kids C₂₀,₂ = 20! /2! ( 20-2)! = 20*19 /2 = 190

To three C₂₀,₃ = 20! /3! ( 20 - 3)! = 20*19*18 /6 = 1140

To four C₂₀,₄ = 20 ! / 4! ( 20 - 4 )! = 20*19*18*17 /4*3*2 = 4845

To five C₂₀,₅ = 20! /5! (20 - 5 )! = 20*19*18*17*16/5*4*3*2*1

C₂₀,₅ = 15504

Then total ways of distribution are:

5 + 190 + 1140 + 4845 + 15504 = 21684

b) C₂₀,₅ we know from a that is equal to 15504

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3 years ago