MATHEMATICS HIGH SCHOOL

Solve each system by elimination:
10x+8y= -18
8x+8y= -24

Answers

Answer 1
Answer:

Answer:

Step-by-step explanation:

10x + 8y = -18

-8x - 8y = 24

2x = 6

x = 3

8(3) + 8y = -24

24 + 8y = -24

8y = -48

y = -6

(3, -6)
Answer 2
Answer: (3,-6) would be the answer to this question

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A registered nurse (RN) pays 5% simple interest on a $175,000 mortgagefor the construction of a house. What is the yearly interest paid on
the mortgage?

Answers

I=PRT
I=intrest
p= starting balance/initial balance
r= rate
t=time

i=175,000x.05x1
i=8750 
this is the intrest rate the amount given in one year
you need to add this to the first amount since its is simple interest not compound

Which graph represents the solution to the given system y=-5x-2 y+2=-5x

Answers

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

y=-5x-2 -------> equation A

y+2=-5x -----> equation B

Isolate the variable y in the equation B

y+2=-5x------> y=-5x-2

Equation A and equation B are equal

Line A and Line B are the same

therefore

The system of equations is a consistent dependent system

The system of equations has infinitely solutions

All ordered pairs belong to the line are solutions of the system

see the graph in the attached figure
y1 = -5x - 2;
y2 = -5x - 2

y1 = y2, => infinitely many solutions

Find the volume and surface area. Round to the nearest hundredth when necessary.

Answers

Hope you r having a nice day

A football is kicked toward the goal. The height of the ball is modeled by the function h(t) = -16t2 + 64t where t equals the time in seconds and h(x) represents the height of the ball at time t seconds. What is the axis of symmetry and what does it represent? t = 2; it takes 2 seconds to reach the maximum height and 2 seconds to fall back to the ground
t = 2; it takes 2 seconds to reach the maximum height and 4 seconds to fall back to the ground
t = 4; it takes 4 seconds to reach the maximum height and 4 seconds to fall back to the ground
t = 4; it takes 4 seconds to reach the maximum height and 8 seconds to fall back to the ground

Answers

h(t) = -16(t^2) + 64t

roots:

0 = -16t^2 + 64t
0 = t^2 - 4t
0 = t(t-4)
t=0 and t =4

The symmetry axis is at the middle of the two roots: t = (0+4)/2

That time (t=2)  is what it takes the object to reach the maximum height.

Answer: t = 2; it takes 2 seconds to reach the maximum height and 4 seconds to fall back to the ground

Answer: B/ it takes 2 seconds to reach the maximum height and 4 seconds to fall back to the ground

Step-by-step explanation:

2 (2x+5) +4 (x+2) = 66

Answers

Answer:

2 (2x+5) +4 (x+2) = 66       x = 6

Step-by-step explanation:
The answer is x=6.

Tip: You can use the Desmos Scientific Calculator to help you.

What does 5^(3*5^(-4)) equal plus steps

Answers

If you simplify the expression, you get 5 3/625.
In decimal form, your answer would be 1.00775521...
5^3(5^−4)

=5^3(1/625)
=5^3/625
=1.007755
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