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3 years ago

URGENT, ALL HELP ACCEPTED PLEASE! Solve y= 3x-1 and (1/2)y+x=1 for their COMMON solution.

1 answer:

6 0

Simplify the second equation.

1/2y = -x + 1

Multiply both sides by 2

y = -2x + 2

Since both equations equal y you can set them equal to each other.

-2x + 2 = 3x - 1

Solve for X

-5x = -3

x = 3/5

Plug this into one of the equations.

3(3/5) - 1 = y

1.8 - 1 = y

y = .8

(0.6, 0.8)

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PLEASE HELP Solve. m^-5 = 1/32 m = ________ ?

4vir4ik [10]

$a^{-n}=\frac{1}{a^n}\\\\m^{-5}=\frac{1}{32}\iff m^5=\frac{1}{\frac{1}{32}}\to m^5=32\iff m=\sqrt[5]{32}\to m=2\\\\because\ 2^5=32\\\\Answer:\boxed{m=2}$

3 0

2 years ago

Help me please. I really need help

artcher [175]

Answer:

B. $42.60.

Step-by-step explanation:

On the first day price is 43.85 + 2.70 = $46.55

second day price is 46.55 + 2.70 = $49.25

For the next 2 days it goes down $1.10 so the price is $49.25 - 2.20=$47.05

On the last day it loses $4.45 so the final price is $47.05-4.45 = $42.60.

7 0

3 years ago

the function of y= x^2 - 4x + 8 approximates the height y, of a bird and its horizontal distance, x as it flies from one fence p

Vika [28.1K]

Rewrite the given equation as
$y=x^2-4x+8=x^2-4x+4+4=(x-2)^2+4$ .
Since $(x-2)^2\ge 0$ , you can conclude that the imimum value of y will be gained for the minimum value of $(x-2)^2$ . The minimum value of $(x-2)^2$ is 0 for x=2.
So, y(2)=0+4=4.
Answer: minimum value of y is 4, when x=2.

7 0

2 years ago

Read 2 more answers

Factor completely and then place the factors in the proper location on the grid. 4y 2 + 25y + 6

astraxan [27]

(4y + 1)(y + 6)
I don't know what you mean by proper location
It shouldn't matter what order the factors are in.

8 0

2 years ago

The radius,r , of a sphere is 4 . 3m Calculate the sphere's volume,v . Use the value 3.14 for sqaure, and round your answer to t

kotykmax [81]

Answer:

V(s) = 332,9 m³

Step-by-step explanation:

The volume of a sphere is:

V(s) = (4/3)*π*r³

if we know r = 4,3 m then

V(s) = (4/3)*3,14*(4,3)³

V(s) = 332,8693 m³

Rounding the answer to the nearest tenth

V(s) = 332,9 m³

4 0

2 years ago