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Ket [755]
3 years ago
9

Can someone help me with this ASAP

Mathematics
2 answers:
Andreyy893 years ago
6 0

The answer is D) angle C'D'A'.

oksian1 [2.3K]3 years ago
5 0

Answer:

D

Step-by-step explanation:

I did it

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I really really need help someone!! )):
yaroslaw [1]

diameter is 15 meters then radius is 15/2 = 7.5 meters

so the amplitude is 7.5 m and height will oscillate with amplitude 7.5 m above and below the center.

midline of the oscillation will be 7.5 m

the wheel.take 8 minutes to complete revolution then it means the height will oscillate with a period of 8 minutes

3 0
4 years ago
What is the value of x in the equation 2.5(6x-4) = 10+4(1.5+0.5x)?
Phoenix [80]

Answer:

Step-by-step explanation:

As the equation is given in the question as follows.

2.5(6x-4)=10+4(1.5+0.5x)

open the bracket

2.5 × 6x - 2.5 × 4 = 10 + 4 × 1.5 + 4 ×0.5x

15x - 10 = 10 + 6 + 2x

15x - 2x = 16 + 10

13x = 26

x = 2

6 0
3 years ago
Suppose you sequentially add 10 drops of water to a graduated cylinder and read the volume add 10 more drops read and so on. how
aleksandr82 [10.1K]
It depends on what is being referred to by "this."

The description of the activity is that 10 drops are added twice and two readings are taken. If you do *that* 4 times, then a total of 20*4 = 80 drops will have been added.

If the activity referred to by "this" is the pair of acts {add 10 drops, read the volume}, then four repetitions will have added 10*4 = 40 drops.

Probably the expected interpretation is that "this" is {add 10 drops, read}, so 40 drops is likely the expected answer.
3 0
3 years ago
2x-y=-8<br>x-4y=-4<br>............​
iragen [17]

to solve this system I first multiplied the second equation by 2 to make the x coefficient equal. then I subtracted equation two from equation one. this eleminated the x. solving for y gave me y=0. then I put 0 back in the original equation and that gave me x=-4.

3 0
4 years ago
Can anyone pls help me in math&lt;3
FinnZ [79.3K]

Answer:

Third number is 12

Step-by-step explanation:

Let \displaystyle \large{d} be common difference & \displaystyle \large{x} be the third number. Set up the following equations:

\displaystyle \large{x-2d=-2 \to (1)}\\\\\displaystyle \large{x+2d=26 \to (2)}

Solve the simultaneous equation for x-term:

\displaystyle \large{2x=24}\\\\\displaystyle \large{x=12}

Let’s make sure that we get accurately answer. Substitute x = 12 in any equations which I’ll choose (1):

\displaystyle \large{12-2d=-2}\\\\\displaystyle \large{-2d=-14}\\\\\displaystyle \large{d=7}

Now add each terms with common difference as 7:

-2+7 = 5

5+7 = 12

12+7 = 19

19+7 = 26

So our pattern is -2, <u>5</u>, <u>12</u>, <u>19</u>, 26. Since the question only asks for third number then the answer is 12

8 0
3 years ago
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