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3 years ago

What is the solution of the system of equations: -2x+8y=-8 and 5x-8y=20

Mathematics

1 answer:

Tema [17]3 years ago

7 0

Answer:

x=4 y=0

Step-by-step explanation:

You add the two equations together to get 3x=12. You derive x=4 and y=0 from that.

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One chicken is injected with a growth hormone while another chicken isn't. both chickens are wighed after a year

Margarita [4]

Answer:

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Step-by-step explanation:

The weight depends on the chicken

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3 years ago

Use the quadratic formula to find both solutions to the quadratic equation given below. 3x^2-x+4=0

Nuetrik [128]

Answer:

B. and D.

Step-by-step explanation:

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3 years ago

What is the area of a sector with a central angle of \frac{5 \pi }{6} radians and a diameter of 5.6 in.? Use 3.14 for π and roun

kvasek [131]

Answer:

10.26 in²

Step-by-step explanation:

The area (A) of the sector is

A = area of circle × fraction of circle

= πr² × $\frac{\frac{5\pi }{6} }{2\pi }$

= π × 2.8² × $\frac{5}{12}$ ≈ 10.26 in²

7 0

3 years ago

Please help im really confused :(

pantera1 [17]

Answer:

a) π

b) 33.4

Step-by-step explanation:

C = πd

1) substitute 105 for C: 105 = πd

2) plug in approximate value of 3.14 for π: 105 = (3.14) d

3) isolate to solve for d: 105/3.14 = d

4) simplify: 105/3.14 ≈ 33.4

5 0

3 years ago

If two points on a line are A(10, −3) and B(12, 9), the rise is __________, and the run is __________, so the slope of the line

kherson [118]

The rise is the difference in y-coordinates:

y₂ - y₁ = 9 - (-3) = 12

The run is the difference in x-coordinates:

x₂ - x₁ = 12 - 10 = 2

The slope is the quotient of rise over run:

m = 12/2 = 6

========================

If two points on a line are A(10, −3) and B(12, 9), the rise is 12, and the run is 2, so the slope of the line is 6.

7 0

2 years ago

What is the solution of the system of equations: -2x+8y=-8 and 5x-8y=20​

What is the solution of the system of equations: -2x+8y=-8 and 5x-8y=20