can somebody help me with these, i will mark you brainliest :)

Answer:

Answer:

[tex](a) \: \underline{\boxed{ ans = \frac{5}{3}}} \\ (b) \: \underline{ \boxed{ans = \frac{x}{y} }}[/tex]

Step-by-step explanation:

[tex]if \: the \: question \: is \to simplify \\ a).......... { ( \frac{3}{5})^{ - 2} ÷ (\frac{5}{3})^{2} } + \frac{5}{3} \\ \\ b)....( \frac{x}{y})^{ - 2} × ( \frac{x}{y})^{ 4} × ( \frac{x}{y})^{ - 1} \\ \\ \underline{ \boxed{solution....(a)}} \\ \\ (\frac{3}{5} )^{ - 2} \div \: (\frac{3}{5} )^{ 2} + \frac{5}{3} = \\ \\ \frac{1}{(\frac{3}{5})^{2}} \div \: (\frac{3}{5} )^{ 2} + \frac{5}{3} = \\ \\ (\frac{5}{3} )^{ 2} \div \: (\frac{3}{5} )^{ 2} + \frac{5}{3} = \\ \\ (\frac{3}{5} )^{ 2} \times (\frac{5}{3} )^{ 2} + \frac{5}{3} = \\ \\ \frac{9 \times 25}{25 \times 9} + \frac{5}{3} = 1 + \frac{5}{3} \\ \underline{\boxed{ ans = \frac{5}{3}}} \\ \\ \underline{ \boxed{solution....(b)}} \\ \\ ( \frac{x}{y})^{ - 2} × ( \frac{x}{y})^{ 4} × ( \frac{y}{x})^{ - 1} = \\ \\ ( \frac{x}{y})^{ - 2} × ( \frac{x}{y})^{ 4} × ( \frac{x}{y})^{ - 1} \\ since \: the \: two \: bases \: are \: same \to \\ ( \frac{x}{y})^{ - 2} ×( \frac{x}{y})^{(4 + ( - 1)} = \\ \\ ( \frac{y}{x})^{2} ×( \frac{x}{y})^{3} = \frac{ {y}^{2} \times {x}^{3} }{ {x}^{2} \times {y}^{3} } = \frac{x}{y} \\ \\ \underline{ \boxed{ans = \frac{x}{y} }}[/tex]

Answer:

1.6669

Step-by-step explanation:

231.67/139=1.6669

Answer:

a) 169 = 13² = 84+85

b) 225 = 15² = 112+113

c) 289 = 17² = 144+ 145

d) 6561 = 81² =  3280+ 3281

Step-by-step explanation:

Explanation:-

a) Given  169 is an odd number

Squares of odd numbers, as a sum of two consecutive positive integers

169 = 13² = 84+85

b)

Given  225 is an odd number

Squares of odd numbers, as a sum of two consecutive positive integers

225 = 15² = 112+113

c)

Given  289 is an odd number

Squares of odd numbers, as a sum of two consecutive positive integers

289 = 17² = 144+ 145

d)

Given  6561 is an odd number

Squares of odd numbers, as a sum of two consecutive positive integers

6561 = 81² =  3280+ 3281

Answer:

There's a constraint in the question. A and B should be and G shouldn't be in the subset. Then A, B and G actually don't have any choices.

Step-by-step explanation:

Answer:

top right

Step-by-step explanation:

parallel lines will never touch, therefore no solution

Answer:

i believe it is B!!!:)

Step-by-step explanation:

Answer:

1 unit = 3 inches

Step-by-step explanation:

We are given that 4 units = 12 inches.

This can be rewritten as 4x = 12

Then to solve for x, you divide 4 on both sides

so x = 12/4

x = 3

Let me know if you have any questions

Answer:

Step-by-step explanation:

4 units = 12 inches

1 unit = 12 ÷ 4 = 3 inches

Hope this helps! I would really appreciate it if you would please mark me brainliest! Have a blessed day!

Answer: See explanation

Step-by-step explanation:

3.) 140 and its supplementary angle form a straight line, basically, they sum up to 180°. That angle is y

y + 140 = 180

Subtract both sides by 140

y = 40°

Seems both angles are congruent since they have the same label.

y + x + x = 180°

40 + 2x = 180

Subtract both sides by 40

2x = 140

Divide both sides by 2

x = 70°

4.) The missing angle = y

2x - 14 + 3x + 2 + y = 180

5x - 12 + y = 180

Subtract 5x from both sides

-12 + y = - 5x + 180

Add 12 to both sides

y = -5x + 180 + 12

y = -5x + 192

3x + 2 + 2x - 14 - 5x + 192 = 180

3x + 2x - 5x + 2 - 14 + 192 = 180

0 + 180 = 180

180 = 180

That's correct I guess.

5.) Missing angle = y

2x + 8 + 5x + y = 180

7x + 8 + y = 180

Subtract 7x from both sides

8 + y = -7x + 180

Subtract 8 from both sides

y = -7x + 180 - 8

y = -7x + 172

2x + 8 + 5x - 7x + 172

2x + 5x - 7x + 8 + 172 = 180

0 + 180 = 180

180 = 180

I.. think that's correct..?

6.) Missing angle = y

134 + y = 180

Subtract 134 from both sides

y = 46°

x + 46 + 22 = 180

x + 68 = 180

Subtract 68 from both sides

x = 112°

#4 and #5 were honestly sooo confusing. I just did whatever but I hope this is correct lol.

Answer:

Says your in college-

Step-by-step explanation:

Answer:

That’s it’s so hard

Step-by-step explanation:

Answer:=3a+2b−21

Step-by-step explanation:

Let's simplify step-by-step.

3a+2b−7−4−10

=3a+2b+−7+−4+−10

Combine Like Terms:

=3a+2b+−7+−4+−10

=(3a)+(2b)+(−7+−4+−10)

=3a+2b+−21

Answer:

The required equations are:

C) x + y = 18

D) y = 3x - 2

Step-by-step explanation:

Let x be the length of shorter piece and y be the length of larger piece

It is given that the total length is 18 ft which gives us our first equation

[tex]x+y = 18[/tex]

Now it is also given that

"3 times the length of the shorter piece (x)"

[tex]3x[/tex]

"2 ft less than 3 times the length of the shorter piece (x)"

[tex]3x-2[/tex]

Second equation will be:

[tex]y = 3x-2[/tex]

Hence, the required equations are:

C) x + y = 18

D) y = 3x - 2

Answer:

4x - 4y + 6

Step-by-step explanation:

Answer: 4x - 4y + 6

Step-by-step explanation:

Answer:

A = f(1), which is the first term of the sequence, so there's no need for a formula to find A. When finding B, we can use the formula f(n) = f(n − 1) + B. n =

Step-by-step explanation:

is this it ?

Answer:

I think that it is ethier the last to bottom or second to bottom I hope this helps but I really feel like its one of them so just trust your gut!

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

half of 36 is 18

Answer:

18

Step-by-step explanation:

18 because the line on EO is half of 36

Answer:

y=-3x-6

Step-by-step explanation:

Slope intercept form is y=mx+b

m is the slope  (in this problem that is -3)

b is the y-intercept  (in this problem that is -6)

Plug the slope and intercept you were given in and you get the equation of the line in slope intercept form

y=-3x-6

Answer:

Step-by-step explanation:

Equal to

c^2

a^2+b^2

a^2+b^2=c^2

Answer and Step-by-step explanation:

Equal to

c^2

a^2+b^2

a^2+b^2=c^2

Answer:

Step-by-step explanation:

10+3-7+2-5+6=9

Answer:

The polynomial equation that cannot be solved using the quadratic formula: Option2: [tex]x^2-2x^3-5=0[/tex]

Step-by-step explanation:

First of all we have to learn what a quadratic polynomial is.

A polynomial or equation of degree 2 is called a quadratic equation. Quadratic formula is used to solve quadratic equations.

The quadratic equation is of the form:

[tex]ax^2+bx+c = 0[/tex]

From the given options, only option 2 doesn't have degree 2 so it is not a quadratic polynomial.

Hence,

The polynomial equation that cannot be solved using the quadratic formula: Option2: [tex]x^2-2x^3-5=0[/tex]

Answer:

x^5 - 2x^3 - 5 = 0

Step-by-step explanation: Just did this problem and got it right.

Answer:

x = 8

Step-by-step explanation:

small triangle is similar to larger one

set up a proportion:    9    =   x + 4

                                  9+12     x+4+2x

9  = x+ 4                    cross-multiply:  9(3x + 4) = 21(x + 4)

21     3x + 4                                            27x + 36 = 21x + 84

                                                              6x + 36 = 84

                                                               6x = 48

                                                               x = 8

The answer is B 16,4,1

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Answer:

the 4th statement

Step-by-step explanation:

Answer:

the answer is A

Step-by-step explanation:

uwu

Answer:

z(max)  =  5000

x₁  =  2

x₂  = 32

Step-by-step explanation:

Time               Assemble       Finish       Inspection       Profit

Small   x₁               3                  2                  1                   100

Large   x₂              4                  3                  1,5                150

Availablity          140              100                50

Objective function:

z  =  100*x₁   +   150*x₂   to maximize

Subject to:

First constraint assembly capacity 140 hours

3*x₁  +  4*x₂   ≤  140

Second constraint finishing capacity 100 hours

2*x₁  + 3*x₂   ≤  100

Third constraint inspection capacity   50 hours

x₁  +  1,5*x₂    ≤  50

Model:

z  =  100*x₁   +   150*x₂   to maximize

Subject to:

3*x₁  +  4*x₂   ≤  140

2*x₁  + 3*x₂   ≤  100

x₁  +  1,5*x₂    ≤  50

General constraints    x₁  ≥  0    x₂  ≥  0  and integers

With the use of AtomZmath.com (online solver)

After 6 iterations the solution is:

z(max)  =  5000

x₁  =  2

x₂  = 32

Answer:

£3.25

Step-by-step explanation:

Hi there!

First, let’s add up how much they spent, which would be £56.75

If he paid with 3 £20 notes, he would have paid £60.

Now all we have to do is subtract 56.75 from 60, and we are left with

£3.25 in change.

Hope this helped!

Answer:

(0,0)

Step-by-step explanation:

"Zero" refers to the x-intercept of the function. In this instance, the x-intercept of this function is (0,0).