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kakasveta [241]
3 years ago
7

Find the circumference and the area of a circle with radius 7 yd . Use the value 3.14 for π , and do not round your answers. Be

sure to include the correct units in your answers?
Mathematics
1 answer:
Elina [12.6K]3 years ago
7 0
7•2=14
3.14•14=
Answer: 43.96 yds
(I hope this help :) sorry if I’m incorrect)
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The position, x, of an object is given by the equation x = A + Bt +Ct2, where t refers to time. What are the dimensions of A, B,
Serjik [45]

Answer: Dimensions of A are of length [L]

Dimensions of B are of LT^{-1}

Dimensions of C are of LT^{-2}

Step-by-step explanation:

The given equation is

x(t)=A+Bt+Ct^{2}

Since the dimension on the L.H.S of the equation is [L] , each of the terms on the right hand side should also have dimension of length[L] to be dimensionally valid

Thus

Dimensions of A = [L]

Dimensions of Bt = [L]

Bt=[L]\\\\[B][T]=[L]\\\\\therefore [B]=LT^{-1}

Similarly

Dimensions of Ct^{}2 = [L]

Ct^{2}=[L]\\\\[C][T]^{2}=[L]\\\\\therefore [C]=LT^{-2}

4 0
3 years ago
a moving sidewalk at an airport moves at a rate of 1.2 ft / SEC. Walking on the moving sidewalk, a person travels 106 ft Ford an
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A moving sidewalk at an airport moves at a rate of 1.7 ft/sec. Walking on the moving sidewalk, a person travels 104 ft forward in the time it takes to travel 52 ft in the opposite direction.

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3 years ago
Which of the following terms appear in the expansion of (x+y)^10? The letter "a" in each term represents a real constant.
Vinvika [58]

ANSWER

ax^4y^6

ax^3y^7

ax^6y^4

EXPLANATION.

The given binomial is

( {x + y)}^{10}

One property about all the terms in this binomial expansion is that:

The degree of each term is 10.

ax^4y^6

degree=4+6=10

ax^3y^7

degree=3+7=10

ax^6y^4

degree=6+4=10

ax^5

degree=5+0=5

All the terms with degree 10 are the correct options

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A) this is not enough information to compare the mode.

For example:

{1,1,6,11,11]: mean 6, median 6, mode 1 and 11

{4,4,6,8,8} mean 6, median 6 mode, mode 4 and 8
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HELP ME! PLEASE!! <br> 13a - 12b + a - b
BaLLatris [955]
14a - 13b. hope it helped!
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3 years ago
Read 2 more answers
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