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shepuryov [24]
3 years ago
6

Y = −3x x + y = −4 Solution system

Mathematics
1 answer:
Verizon [17]3 years ago
7 0

Answer:

Step-by-step explanation:

Y = - 3x. Equation 1

x + y = - 4 equation 2

Putting value of y

x + (-3x) = - 4

x - 3x = - 4

-2x = - 4

x = - 4/-2 = 2

Putting value of x in the equation 1

Y = - 3(2)

Y = - 6

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mariarad [96]
26 is the correct answer
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2 years ago
Please help this is due TODAY
Nutka1998 [239]

Answer:

Step-by-step explanation:

we are given that given that  1/2T = 60 so T=120°  so we also know R = 120 °

then W and S are also the same angle so 2z +240 = 360

2z = 120

z=60

W =60 °

S = 60 °

which makes sense b/c the small triangles also tell us that the sharp angles of the small triangles are 30 °  for the  30 , 60 90 triangle.

so by complementary angle we know that c = 60 °

we also know that a = 12 b/c all the small triangles are identical.  

we also know that b= 90 °  also by complementary angle

we can also solve for length of SW and RT

cos(30)=adj / Hyp  

12*Cos(30) = adj

12*\sqrt{3} /2 = adj

but the adjacent side is 2 times for SW so

SW = 12 \sqrt{3}

for RT

sin(30) = Opp / hyp

12 * Sin(30) = Opp

12 * 1/2 = opp

but RT is times 2 again, sooo

RT = 12

you can also solve for the area of SRWT = 12 *12 = 144 units  (what ever unties 12 is in)   hmmm

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3 0
3 years ago
The formula d = rt gives the distance traveled in time t at rate r. A bicyclist rides at a
Nesterboy [21]

D = rt

We are given the rate r to be 15 mph.

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Did you follow?

6 0
3 years ago
Please show work and correct answers ONLY!
amm1812

2.

April 11 : 3 hours 15 minutes

April 12 : 3 hours

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April 14 : 5 hours 15 minutes

April 15 : 2 hours 45 minutes

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3.

45 1/4-> 45.25 * .5 = 22.625 = 22 5/8

gusset plate :

5 3/4 -> 5.75 * .5 = 2.875 = 2 7/8

3 1/2 -> 3.5 * .5 = 1.75 = 1 3/4

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5 0
2 years ago
Hey! any help is appreciated!!
igomit [66]

Step-by-step explanation:

48 us the correct answer

5 0
3 years ago
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