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neonofarm [45]
3 years ago
13

Please help quickly!

Mathematics
2 answers:
bekas [8.4K]3 years ago
4 0

Answer:

the answer is 2.8

Step-by-step explanation:

Kay [80]3 years ago
3 0

Answer:

x=4

Step-by-step explanation:

Given:

\frac{3x}{5} -0.5=1.9

Add 0.5 to both sides

\frac{3x}{5} =2.4

Multiply 5 from both sides

3x=12

Divide both sides by 3

x=4

Hope this helps

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188=4(7v-2) <br><br> solve for v?
frutty [35]
188=28 v-8
28 v=188+8
28 v += 196
v=7
there u go !!!!
7 0
3 years ago
Read 2 more answers
Write an equation for the translation of x^2 + y^2 = 49 by 7 units right and 4 units up
Tatiana [17]

Answer:

(x - 7)² + (y - 4)² = 49

Step-by-step explanation:

Given

Equation: x² + y² = 49

Required:

New Equation when translated 7 units right and 4 units up

Taking it one step at a time.

When the equation is translated 7 units right, this implies a negative unit along the x axis.

The equation becomes

(x - 7)² + y² = 49

When the equation is translated 4 units up, this implies a negative unit along the y axis.

(x - 7)² + (y - 4)² = 49

The expression can be further simplified but it's best left in the form of

(x - 7)² + (y - 4)² = 49

8 0
3 years ago
Complete the equation of the line whose y-intercept is (0,5) and slope is -9<br><br><br>y= ???​
r-ruslan [8.4K]
Y= -9x+5

The slope intercept formula is y=mx +b, where m is the slope and b is the y-intercept. We know that m is -9 because that’s the slope and b is 5 because the y-intercept is at (0, 5), meaning that’s where the line crosses the y-axis.
8 0
3 years ago
A square floor has an area of 480 square feet. Kristin wants to put molding around the entire perimeter of the floor.
OLEGan [10]
Well, if it's a square it will have 4 sides. You have a total area of 480 square feet. You take 480/4 and that is 120. Thus you will need 120 feet of molding.
5 0
3 years ago
Let's use the results of the 2012 presidential election as our x0. Looking up the popular vote totals, we find that our initial
gavmur [86]

Answer:

Step-by-step explanation:

Step-by-step explanation:

The code for the problem is as follows:

%Defining the given matrices:

%P is the matrix showing the percentage of changes in voterbase

P = [ 0.8100 0.0800 0.1600 0.1000;

0.0900 0.8400 0.0500 0.0800;

0.0600 0.0400 0.7400 0.0400;

0.0400 0.0400 0.0500 0.7800];

%x0 is the vector representing the current voterbase

x0 = [0.5106; 0.4720; 0.0075; 0.0099];

%In MATLAB, the power(exponent) operator is defined by ^

%After 3 elections..

x3 = P^3 * x0;

disp("The voterbase after 3 elections is:");

disp(x3);

%After 6 elections..

x3 = P^6 * x0;

disp("The voterbase after 6 elections is:");

disp(x3);

%After 10 elections..

x10 = P^10 * x0;

disp("The voterbase after 10 elections is:");

disp(x10);

%After 30 elections..

x30 = P^30 * x0;

disp("The voterbase after 30 elections is:");

disp(x30);

%After 60 elections.

x60 = P^60 * x0;

disp("The voterbase after 60 elections is:");

disp(x60);

%After 100 elections.

x100 = P^100 * x0;

disp("The voterbase after 100 elections is:");

disp(x100);

<u>The output is as well as the code in the matlab is as attached.</u>

The output will be as follows:

The voter-base after 3 elections is therefore:

0.392565, 0.400734, 0.109855, 0.096846

The voter-base after 6 elections is therefore:

0.36168, 0.36294, 0.14176, 0.13362

The voter-base after 10 elections is therefore:

0.35405, 0.34074, 0.15342, 0.15178

The voter-base after 30 elections is therefore:

0.35463, 0.32854, 0.15697, 0.15986

The voter-base after 60 elections is therefore:

0.35465, 0.32849, 0.15698, 0.15988

The voter-base after 100 elections is therefore:

0.35465, 0.32849, 0.15698, 0.15988

5 0
3 years ago
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