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I am Lyosha [343]
3 years ago
9

HELP ASAP WILL MARK BRAINLIEST!!! Estimate the solution to the system of equations.

Mathematics
1 answer:
stira [4]3 years ago
8 0

Answer:

7x−y=7 (x= 1 y/7)

Step-by-step explanation:

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Consider a bag containing four red marbles, three green ones, one transparent one, three yellow ones, and three orange ones.
Allisa [31]

Answer:

21

Step-by-step explanation:

Given,

  • Number of red marble = 4
  • number of green marble = 3
  • number of transparent marble = 1
  • number of yellow marble = 3
  • number of orange marble = 3

Total number of marble except red and green  = 3 +3+1

                                                                               = 7

So, the total number of possible sets of five marbles such that none of them are green or red can be given by

n\ =\ ^7C_5

   =\ \dfrac{7!}{(7-5)!.5!}

   =\ \dfrac{7!}{5!.2!}

  =\ \dfrac{42}{2}

   = 21

So, the required number of possible sets are 21.

4 0
3 years ago
In ΔKLM, l = 300 inches, ∠L=161° and ∠M=18°. Find the length of k, to the nearest 10th of an inch.
olchik [2.2K]

Answer:

16.1 Inches

Step-by-step explanation:

In ΔKLM,

∠K+∠L+∠M=180°

∠K+161°+18°=180°

∠K+179°=180°

∠K=180°-179°=1°

To determine k in the diagram, we use the Law of Sines.

\frac{k}{Sin K}=\frac{l}{Sin L}

\frac{k}{Sin 1}=\frac{300}{Sin 161}

k X Sin 161°=300 X sin 1°

k=(300 X sin 1°)÷sin 161°

k=16.1 inches (correct to the nearest tenth of an inch)

4 0
3 years ago
Simplify the expression.<br> Cos x csc x tan x<br> a.<br> -1<br> c.<br> 1<br> b.<br> 0<br> d.
andrey2020 [161]

Answer:

1

Step-by-step explanation:

See attached image for explanation.

6 0
2 years ago
Read 2 more answers
Two boys play basketball in the following way. They take turns shooting and stop when a basket is made. Player A goes first with
Softa [21]

Answer:

P(A) = p1 (1 − q1q2)

Step-by-step explanation:

Let A = player A wins,

then  P(A) = p1 + (1 − p1)(1 − p2)P(A)

⇒ P(A) = p1 (1 − q1q2)

6 0
3 years ago
Evaluate the expression when y= 7 and x = 9.<br> x + 4y
Cloud [144]

Answer:

  [1]    9x - 4y = 7

  [2]    x - 4y = -17

 [2]    x = 4y - 17

// Plug this in for variable  x  in equation [1]

  [1]    9•(4y-17) - 4y = 7

  [1]    32y = 160

// Solve equation [1] for the variable  y  

  [1]    32y = 160

  [1]    y = 5

// By now we know this much :

   x = 4y-17

   y = 5

// Use the  y  value to solve for  x  

   x = 4(5)-17 = 3

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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