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Slav-nsk [51]
3 years ago
15

Solve the equation 8 + 32 = 5 + r

Mathematics
1 answer:
Alex73 [517]3 years ago
6 0

Answer:

r=35

Step-by-step explanation:

8+32=5+r

r=8+32-5

r=35

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For a special field trip, Mrs. Hallman needs to pick 4 students out of 25 boys and 12 girls. What is the probability that all th
steposvetlana [31]
The answer would be 11%
5 0
3 years ago
Find the measures of two angles, one positive and one negative that are coterminal with pi/5
lozanna [386]
To find coterminal angles for an angle, β, given in radians use the following formula:
                                  coterminal angle =  β + 2πk
                          where k is an integer {..., -3, -2, -1, 0, 1, 2, 3, ...}
Negative Coterminal Angle: k = -1 
                                   NCA = π/5 + 2π(-1)
                                            = -9π/5      
Positive Coterminal Angle: k = 1
                                  PCA = π/5 + 2π(1)
                                           = 11π/5
The following answers are just one of many possible answer... you have infinite number of choices for k.
NCA =  \frac{-9 \pi }{5}
PCA= \frac{11 \pi }{5}
7 0
3 years ago
I need help! Find the equation of a line parallel to 3x-3y=5 that contains the point (-1,-5). Write the equation in slope Interc
Readme [11.4K]

the equation of the line is y= x-4

Step-by-step explanation:

so so the first thing that you're going to do is get y alone

-x-5=y

next you're going to find your slope which in this case is negative one.

after that in order to find the equation of a parallel line you're going to find the reciprocal of the slope.

so in this case the reciprocal is one.

next you're going to substitute in the cordinates to find the y intercept

x+b=y. (-1)+b= -5. (. b is the y intercept)

b= -4

6 0
4 years ago
Find two positive numbers whose product is 36 and whose sum is a minimum.
alukav5142 [94]
Let one of the numbers be x. The other number cab then be represented as 36-x (x+36-x = 36).
The product can then be represented as y = x(36-x) or y=36x-x2

The maximum or minimum is always on the axis of symmetry which has the formula x=-b/2a.
In our case, the axis of symmetry is -36/-2, so x=18.

If one number is 18 and the 2 numbers add to 36, the other number is 18 as well.
So the 2 numbers are 18 and 18 and the maximum product is 324,
8 0
3 years ago
Factor completely: (3a+6)^2
zvonat [6]
(3(a+2))^2 factored
4 0
3 years ago
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