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Phantasy [73]
2 years ago
10

Solve for A: B = 2/5 ( A-9)

Mathematics
1 answer:
tamaranim1 [39]2 years ago
4 0

Answer:

Step-by-step explanation:

B = 2/5(A - 9)

(5/2)B = A - 9

A = 9 + (5/2)B

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Line JK passes through points J(–3, 11) and K(1, –3). What is the equation of line JK in standard form?
nikitadnepr [17]
You can start with the form
  ∆y(x -x1) -∆x(y -y1) = 0
Here, we have
  ∆y = 11-(-3) = 14
  ∆x = -3-1 = -4
and we can choose (x1, y1) = (1, -3). This gives
  14(x -1) -(-4)(y -(-3)) = 0
  14x +4y -2 = 0
All these terms have a common factor of 2 that we can remove. Adding 1 to the result puts it in standard form:

  7x +2y = 1

6 0
3 years ago
Pls help i really really need help on this. We just learned this but i can't remember it.
bulgar [2K]

Answer:

114 cm²

Step-by-step explanation:

Area of shaded region

= area of circle -area of square

\boxed{area \: of \: circle = \pi {r}^{2} }

Given that radius= 10cm, r= 10cm.

\boxed{area \: of \: square = side \:  \times side}

Let the length of a side of the square be x cm.

Applying Pythagoras Theorem,

10² +10²= x²

100 +100= x²

x²= 200

x =   \sqrt{200}

Area of square

= x²

= 200cm²

Area of shaded region

= 3.14(10²) -200

= 3.14(100) -200

= 314 -200

= 114 cm²

8 0
2 years ago
What is the measure (in radians) of central angle & in the circle below?
MA_775_DIABLO [31]

Answer:

7pi/6

Step-by-step explanation:

Using the formula for arc length in radians, we get:

  1. 14pi = 12(theta)
  2. theta = 7pi/6 [divide both sides by 12]
8 0
2 years ago
I need help i don't like math lol
Dvinal [7]
Lines m and n are parallel.
Lines k and l are parallel.
Hope this helps :)
3 0
3 years ago
Read 2 more answers
What is the unit rate of 2.99 for 14 pounds
natali 33 [55]
It is .21 or 21 cents for each pound.
8 0
3 years ago
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