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masya89 [10]
3 years ago
7

A sector from a radius 4 circle has an area of 8 square feet. Find the perimeter of the sector. Use an exact answer.

Mathematics
1 answer:
Ludmilka [50]3 years ago
8 0

Answer:

I'm not sure how to solve the question what kind of math is it

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What is the product (4x)( -3x^6)(-7x^3)
11111nata11111 [884]

Answer:

  84x^10

Step-by-step explanation:

The coefficients multiply, and the exponents add.

  (4x)( -3x^6)(-7x^3) = (4)(-3)(-7)x^(1+6+3) = 84x^10

__

The rule for exponents is ...

  (x^a)(x^b) = x^(a+b)

7 0
3 years ago
Please help!!!!!!!!!!!!!!!!!!!!
Novosadov [1.4K]

Answer:

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Step-by-step explanation: it is that answer because (r+s)t=rt+st is you r answer i did it and i got it correct please mark me as brainlist

3 0
3 years ago
Read 2 more answers
Factor: m^2 - 20m - 21
Anton [14]

Answer: (m-21)(m+1)

Step-by-step explanation:

To factor this trinomial, find two numbers that multiply to -21 and add to -20:

(-21)(1)=-21

-21+1=-20

They are -21 and 1.

Add -21 and 1 to m to get both factors:

(m+(-21)) and (m+1)

(m-21) and (m+1)

Multiply them to get the answer:

(m-21)(m+1)

4 0
3 years ago
I need help with math work
vichka [17]
1. 3/1

2. Will be positive. Aka always rational.

3. 3/1 + 3/1 = 6/2 = 3/1
6 0
3 years ago
Approximate the area under the
taurus [48]

Split up the interval [0, 3] into 3 equally spaced subintervals of length \Delta x = \frac{3-0}3 = 1. So we have the partition

[0, 1] U [1, 2] U [2, 3]

The left endpoint of the i-th subinterval is

\ell_i = i - 1

where i\in\{1,2,3\}.

Then the area is given by the definite integral and approximated by the left-hand Riemann sum

\displaystyle \int_0^3 f(x) \, dx \approx \sum_{i=1}^3 f(\ell_i) \Delta x \\\\ ~~~~~~~~~~ = \sum_{i=1}^3 (i-1)^3 \\\\ ~~~~~~~~~~ = \sum_{i=0}^2 i^3 \\\\ ~~~~~~~~~~ = 0^3 + 1^3 + 2^3 = \boxed{9}

4 0
2 years ago
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