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icang [17]
3 years ago
8

Justin and Austin decide to play catch after school. They start at the same point.

Mathematics
2 answers:
Deffense [45]3 years ago
8 0
I think it’s A


a^^^^
SashulF [63]3 years ago
7 0
Ok so The answer is A

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What is the circumference
Stolb23 [73]
There are two (equivalent) formulas for the circumference of a circle:

C = 2 pi r, where r is the radius of the circle

C = pi d, where d is the diameter of the circle

In this particular problem, however, we're dealing with arc length.  For the shown central angle "theta" = 160 degrees, the arc length is 42 cm.
Knowing this enables us to calculate the radius or diameter of the circle.

Arc length = s = (radius) (central angle, in radians, not degrees)

First, convert 160 degrees to radians:  160 deg     pi rad
                                                              ----------- * ------------ = (8/9) pi rad
                                                                    1         180 deg

Then 42 cm =  r *(8/9) pi rad

Solve for the radius (r):  divide 42 cm by (8/9) pi rad

Then use the formula for circumference introduced earlier:

C= 2 pi r                   Substitute [42 cm / ( (8/9) pi rad )] for r.

Simplify your result, and you will then have the circumference, C, in cm.
6 0
3 years ago
Expanding logarithmic Expression In Exercise,Use the properties of logarithms to rewrite the expression as a sum,difference,or m
wel

Answer:

\frac{1}{2}ln(2x)-\frac{1}{2}ln(x^2-1)

Step-by-step explanation:

In 2x/(x^2 - 1)1/2

ln(\frac{2x}{x^2-1} )^\frac{1}{2}

Apply the property of natural log

ln x^m = m ln(x) move the exponent before ln

ln(\frac{2x}{x^2-1} )^\frac{1}{2}

\frac{1}{2}ln(\frac{2x}{x^2-1})

ln(m/n)= ln m - ln n

\frac{1}{2}(ln(2x)-ln(x^2-1))

multiply 1/2 inside the terms

\frac{1}{2}ln(2x)-\frac{1}{2}ln(x^2-1)

6 0
3 years ago
All the members of a construction crew work at the same pace. Six of them working together are able to pour foundation in 22 hou
beks73 [17]

Answer:

All the members of a construction crew work at the same pace. Four of them working together are able to pour concrete foundations in 32 hours.

Step-by-step explanation:

8 0
3 years ago
A jar contains 17 orange,7 pink, and 4 black marbles. A marble is drawn at random.What is the probability that the marble is pin
Grace [21]
Sample space = 17 + 7 + 4 = 28
P(pink) = 7/28
P(orange) = 17/28
P(pink or orange) = P(pink) + P(orange)
P(pink or orange) = 7/28 + 17/28
P(pink or orange) = 24/28
P(pink or orange) = 6/7 or 0.857143 or 85.7%
5 0
4 years ago
How many solutions does the equation 9x-3(x+8)=6x-24
Marina86 [1]
Simplifying
9x + -3(x + 8) = 6x + -24

Reorder the terms:
9x + -3(8 + x) = 6x + -24
9x + (8 * -3 + x * -3) = 6x + -24
9x + (-24 + -3x) = 6x + -24

Reorder the terms:
-24 + 9x + -3x = 6x + -24

Combine like terms: 9x + -3x = 6x
-24 + 6x = 6x + -24

Reorder the terms:
-24 + 6x = -24 + 6x

Add '24' to each side of the equation.
-24 + 24 + 6x = -24 + 24 + 6x

Combine like terms: -24 + 24 = 0
0 + 6x = -24 + 24 + 6x
6x = -24 + 24 + 6x

Combine like terms: -24 + 24 = 0
6x = 0 + 6x
6x = 6x

Add '-6x' to each side of the equation.
6x + -6x = 6x + -6x

Combine like terms: 6x + -6x = 0
0 = 6x + -6x

Combine like terms: 6x + -6x = 0
0 = 0

Solving
0 = 0
7 0
3 years ago
Read 2 more answers
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