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pogonyaev
2 years ago
12

Pls help the first correct answer gets brainleist​

Mathematics
1 answer:
LenaWriter [7]2 years ago
4 0

Answer:

a=3 (i think)

Step-by-step explanation:

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A circular rim 28 inches in diameter rotates the same number of inches per second as a circular rim 35 inches in diameter. if th
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1 revolution of a circle = circumference of that circle.

<span>1 revolution of a circle with the diameter of 28 inches = </span><span><span>πd=28π</span><span>πd=28π</span></span><span> inches. Hence, x revolutions per second = </span><span><span>28πx</span><span>28πx</span></span><span> inches per second = </span><span><span>60∗28πx</span><span>60∗28πx</span></span><span> inches </span>per minute.

<span>Given that </span><span><span>60∗28πx=35πn</span><span>60∗28πx=35πn</span></span><span> --> </span><span><span>n=<span><span>60∗28πx</span><span>35π</span></span>=48x</span><span>n=<span><span>60∗28πx</span><span>35π</span></span>=48x</span></span><span>.</span>
7 0
3 years ago
Which angles are vertical angles in the figure shown select two answers
lakkis [162]

Answer:I think I see where they got it from I think it’s B)2 and 3 C)5 and 8

If not then will update with correct answer

Step-by-step explanation:

7 0
3 years ago
a sketch of a fashion designer's shirt is 9cm long. the actual shirt is 1 meter long. What is the scale of the drawing?
alexgriva [62]

Answer:

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Step-by-step explanation:

8 0
3 years ago
A monument casts a 40 ft shadow. Adam is 6 ft tall and casts a 5 foot shadow. How tall is the monument
OLga [1]
The answer is 48 feet (D).

Explanation:

To solve this, you must think of the monument and its shadow and Adam and his shadow as a triangle, the person/object being the vertical leg, the shadows being the horizontal leg, and a line connecting them being the hypotenuse.  Also, we can assume that these triangles are similar.  First, we can set the scale to be 40/5 (the two shadows set a scale because the triangles are similar).  Then, we can put x/6 (the actual things are similar, and the scale was established to be building/measurement).  Next, we can set the two fractions equal to each other (40/5 = x/6) and solve.  We can cross multiply to get 5x = 40 * 6.  That goes to  5x = 240.  Finally, we can divide by five on each side to get x = 48 feet (D).
3 0
3 years ago
PLEASE HELP I will mark brainliest to the correct answer
kow [346]

Answer:

y=-3x-2

Step-by-step explanation:

so the line is going down so we know that the slope is going to be negative.

slope is y over x and it looks like every time it goes up 3 and to the right 1 so 3/1 is 3 so the slope is 3 and if the slope has to be negative than the answer is the first one

7 0
3 years ago
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