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vredina [299]
3 years ago
6

Two angles are supplementary and have a ratio of 1:4. what is the size of the smaller angle

Mathematics
2 answers:
luda_lava [24]3 years ago
7 0
Supplementary angles add up to 180 degrees
ratio of 1:4.....added = 5

1/5(180) = 180/5 = 36 <=== smaller angle
4/5(180) = 720/5 = 144 .... larger angle
Dima020 [189]3 years ago
4 0
Supplementary angles add up to 180 degrees
ratio of 1:4.....added = 5

1/5(180) = 180/5 = 36 <=== smaller angle
4/5(180) = 720/5 = 144 .... larger angle
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3(x-4)=12-2(x-3) slove for x
photoshop1234 [79]

Answer:

x = 6

Step-by-step explanation:

3(x - 4) = 12 - 2(x - 3)

3x - 12 = 12 - 2x + 6

3x - 12 = 18 - 2x

+2x              + 2x

5x -12 = 18

   + 12   +12

5x = 30

x = 6

If this answer is correct, please make me Brainliest!

4 0
3 years ago
Find the values of A &amp; B so that x^4+x^3+ax+b is divisible by x^2+1
DaniilM [7]

Answer:

a = 1 b = -1.

Step-by-step explanation:

Suppose the quotient when you divide x^4+x^3+ax+b  by x^2 + 1 is

x^2 + ax + b then expanding we have:

(x^2 + 1)(x^2 + ax + b)

= x^4 + ax^3 + bx^2 + x^2 + ax + b

= x^4 + ax^3 + (b + 1)x^2 + ax + b Comparing this with the original expression:

  x^4 +  x^3  + 0 x^2       + ax + b  Comparing coefficients:

a = 1 and b+ 1 = 0 so b = -1.

6 0
3 years ago
What is a good algebra calculator that is free to use
GarryVolchara [31]
I always use Algebra Mathaway or Math Papa
8 0
3 years ago
Read 2 more answers
Find the area of the shaded region use 3.14 for pi
dexar [7]
Answer: 65.94 square meters

This value is approximate since pi = 3.14 is approximate

------------------------------------------------------------------

Work Shown:

Area of circle = pi*(radius)^2
A = pi*r^2

Area of smaller circle = pi*2^2 <<--- replace r with 2; which is the smaller radius
Area of smaller circle = 4*pi

Area of larger circle = pi*5^2  <<--- replace r with 5 (since 3+2 = 5); which is the larger radius
Area of larger circle = 25*pi

Area of shaded region = (area of larger circle)-(area of smaller circle)
Area of shaded region = 25*pi - 4*pi
Area of shaded region = 21*pi
Area of shaded region = 21*3.14 <<--- replace pi with 3.14 (approximate)
Area of shaded region = 65.94 square meters

8 0
3 years ago
La probabilidad de que el estudiante A apruebe un examen de MM-100 es 0.6, la probabilidad de que apruebe un estudiante B es 0.4
ivanzaharov [21]

Answer:

0.5 = 50% probabilidad de que apruebe el estudiante B dado que el estudiante A aprueba.

Step-by-step explanation:

La probabilidad condicional :

P(B|A) = \frac{P(A \cap B)}{P(A)}

En el cual:

P(B|A) es la probabilidad de que ocurra el evento B, dado que A sucedió.  

P(A \cap B) es la probabilidad de que ocurran tanto A como B.  

P(A) es la probabilidad de que ocurra A.

En esta pregunta :

Evento A: Estudiante A aprueba.

Evento B: Estudiante B aprueba.

La probabilidad de que el estudiante A apruebe un examen de MM-100 es 0.6

Entonces P(A) = 0.6

La probabilidad de que ambos estudiantes aprueben es 0.3

Entonces P(A \cap B) = 0.3

¿Cual es la probabilidad de que apruebe el estudiante B dado que el estudiante A aprueba.?

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.3}{0.6} = 0.5

0.5 = 50% probabilidad de que apruebe el estudiante B dado que el estudiante A aprueba.

6 0
3 years ago
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