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navik [9.2K]
3 years ago
11

Solve the system of equations using substitution.

Mathematics
2 answers:
TEA [102]3 years ago
6 0
I think the answer is C
Lunna [17]3 years ago
5 0
See attached picture for answer:

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Help me on this one pls
Semenov [28]

Answer:  Plan A is less expensive for 50 minutes. About $6 less than Plan B

At 200 minutes, both plans cost $24

Step-by-step explanation:

1.)  Look at the numbers for minutes going across the bottom from left to right. Find 50. Follow the grid line up to where the blue line crosses it. (The blue line is lower than the red line so the cost is less.) Look at the numbers on the cost scale to verify the difference if someone asked. Plan A costs $6. Plab B costs $12 for 50 minutes.

2.) Look at where the Red and Blue lines intersect. That is where the plans cost the same amount of money for the same amount of minutes. Follow the grid line down from that point to find the number of minutes.

7 0
2 years ago
The equation of a circle whose center is at ( 4,0 ) and radius is length 2 ( square root ) 3
Vesna [10]
The equation of a circle:
(x-h)^2+(y-k)^2=r^2
(h,k) - the coordinates of the center
r - the radius

The center is (4,0), the length of the radius is 2√3.
(x-4)^2+(y-0)^2=(2\sqrt{3})^2 \\
\boxed{(x-4)^2+y^2=12}
8 0
2 years ago
Read 2 more answers
Evaluate 42 – a² + ab for a = 6 and b = 5.
rodikova [14]
42-(6x6)+(6x5)
42-36+30
6+30
Answer: 36
3 0
2 years ago
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Find the surface area of a sphere with a diameter of 32 mm. Express your answer in terms of pie
fenix001 [56]

Answer:

A = 1024π

Step-by-step explanation:

A=4\pi r^{2}       Use this equation to find the surface area of the sphere

A=4\pi(16)^{2}       Simplify the exponent

A = 4π(256)      Multiply

A = 1024π

If this answer is correct, please make me Brainliest!

5 0
3 years ago
Which of these pairs of points defines a line with a slope of 0? HELP ASAP
Ad libitum [116K]
A line with a slope=0  has the same values of "y"
if we have two points.
A(x₁,y₁)
B(x₂,y₂)
the line between these two points will be horizontal o slope=0 if : y₁=y₂

answer:
A)(1,4) and (-4,4) 

8 0
3 years ago
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