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Scrat [10]
3 years ago
11

3x(x+5y)+2y(7x-y)+4(^2+2y)

Mathematics
1 answer:
aksik [14]3 years ago
6 0

Answer:

Step-by- step :

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Please I need help on this
vampirchik [111]

Answer:

53.13

Step-by-step explanation:

To find the measure of an angle use an inverse trig function.

Sin A = \frac{4}{5} so you can take the inverse to find A sin^{-1}\frac{4}{5} = A.

Use a calculator to calculate the value.

A = 53.13

4 0
3 years ago
What is the equation of the line that passes through the point (-4,2) and has a slope of 1/4
zubka84 [21]

Step-by-step explanation:

Equation of line is y-y1 = m(x-x1), where m is the slope and (x1,y1) is the given point.

y-2 = 1/4*(x-(-4))

y-2 = 1/4 * (x+4)

4*(y-2) = x+4

Equation of the line is,

x-4y = -12

8 0
2 years ago
Select expressions that are equivalent to 5x - 15 - 20x + 10
nordsb [41]

Answer:

-15x - 5

Step-by-step explanation:

5x - 15 - 20x + 10

5x - 20x - 15 + 10

-15x - 5

8 0
2 years ago
What is the length of arc ab?
7nadin3 [17]
Before we do anything we must convert radians to degrees using a table. pi/3 radians equals 60 degrees, meaning the central angle of this arc is 60 degrees. This also tells us that the length of the arc is 1/6 of the whole circumference. All we have to do now is calculate the circumference which is diameter x pi.

arc = 1/6 pi x 36
arc = 6pi cm

4 0
3 years ago
Read 2 more answers
Calculate the sum. -16 + (-12) C A. 28 B. 4 C. -4 D. -28
AlexFokin [52]

Answer:

-28

Step-by-step explanation:

-16 +(-12)

= -16 - 12

adding both of them,

= - 28

3 0
2 years ago
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