Solve the following system using the addition method:
-27x + 6y = -21
-12x +3y = -9
(3 points, 2 for work, 0.5 for each part of the solution (x,y))

Answer:

Pretty sure the answer is $160.86

Step-by-step explanation:

you start off by multiplying 10.75 x 8 because that's how much he'll deposit at the end of an 8 week spand.

adding 86+138.22= 224.22

then you subtract 31.68 two times from that as he withdraws 2 times in the 8 weeks, giving you the answer of 160.86.

hope this helps xx have a good day :)

I’m guessing the end total would be $299.08. Somewhere around that number.

Answer:

there should only be 1 zero for a linear function

Step-by-step explanation:

Answer:

First of all, when we say linear function that it should be taken note that the maximum number of zeroes should be one. The linear equation will not have a zero only if the line it produces is a vertical line and does not pass the origin

Step-by-step explanation:

i hope this helps you let me know if it does

8 weeks

First, find how much money Maurisa saves each week. 25% is the same as 1/4, and 1/4 of 8 is 2, so Maurisa saves $2 each week.

Finally, just divide $16 by $2 per week to find that Maurisa will take 8 weeks to save $16.

Answer:

(2,2), (-1,5), (-3,2), (-1,-1)

Step-by-step explanation:

The radius is the distance from the center of the circle to the outside. So, adding or subtracting 3 from the x-value of the center point will give you a point that lies on the circle. Doing the same to a y-value will as well. However, never add or subtract from both.

The polynomial 10x^3 - 35x^2 + 6x - 21 is factored using the grouping method to obtain (2x - 7)(5x^2 + 3).

To factor the polynomial 10x^3 - 35x^2 + 6x - 21 using the grouping method, we first look for a common factor in each group separately and then factor out the common binomial factor.

Split the polynomial into two groups: (10x^3 - 35x^2) and (6x - 21).

Factor out the greatest common factor from each group: 5x^2(2x - 7) and 3(2x - 7).

Now we have 5x^2(2x - 7) + 3(2x - 7). Since both terms have a common binomial factor of (2x - 7), we can factor this out: (2x - 7)(5x^2 + 3).

So, the factored form of the polynomial 10x^3 - 35x^2 + 6x - 21 using the grouping method is (2x - 7)(5x^2 + 3).

Answer:

(10^7)y

Step-by-step explanation:

raise 10 to the 7th power

10 ^7

Multiply this and y

10^7 * y

(10^7)y

B. plz mark brainly

Answer: B) 4 bins

Step-by-step explanation:

The criteria of divisibility are rules that serve to know if a number is divisible by another without having to perform the division.

A number is divisible by 3 (or 9) if and only if the sum of its digits is divisible by 3 (or 9).

5,272

5 + 2 + 7 + 2 = 16

1 + 6 = 7 →This number isn't divisible by 3, therefore 5,272 isn't divisible by 3

Divisibility by 5 is easily determined by checking the last digit in the number , and seeing if it is either 0 or 5. If the last number is either 0 or 5, the entire number is divisible by 5.

5,272 → the last digit is 2; isn't 0 or 5, therefore 5,272 isn't divisible by 5.

The basic rule for divisibility by 4 is that if the number formed by the last two digits in a number is divisible by 4, the original number is divisible by 4

5,272

the last two digits are 72, and 72/4 = 18

72 is divisible by 4, therefore 5,272 is divisible by 4

Since 5,272 is divisible by 4, Michael can use 4 bins to organize the blocks, and he needs to put 5,272/4 = 1,318 blocks in each bin.

Answer: B) 4 bins

[tex]\textit{\textbf{Spymore}}[/tex]​​​​​​

-20 is the anwser

4*(-24)/5 =-20

Answer: -30

(4/5)x=-24

x=(-24)(5/4)=-6*5=-30

Answer:your answer is C

Step-by-step explanation:

Answer:

(2.5,5)

Step-by-step explanation:

thats the answer

Answer:

The solution point is (2.5, 5)

Step-by-step explanation:

This is one of the very first steps you need to take in order to solve 2 equations with 2 unknowns. This does not require that you make any adjustments.

2x + y  =  10

-2x +2y = 5        Just add. The xs cancel.

3y = 15                Divide by 3

3y/3 = 15/3

y = 5

=========

Now use one of the equations (the top one is easier) to solve for x

2x + y = 10      Substitute y = 5

2x + 5 = 10      Subtract 5

2x +5-5 = 10-5  

2x = 5              Divide by 2

x = 2.5

The solution point is (2.5 , 5)

50° is the answer since the the circumscribed angle is 1/2 of the arc on the opp side

Answer:

50° is the answer since the the circumscribed angle is 1/2 of the arc on the opp side

Step-by-step explanation:

Answer:

x=y+5

Step-by-step explanation:

Step-by-step explanation:

To solve for x in this case, we must first add 5 to both sides, resulting in:

x - 5 + 5 = y + 5

then simplify,

x = y + 5

And boom, you're done!

Answer:

D

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (- 6, - 8), thus

(x + 6)² + (y + 8)² = r²

The radius is the distance from the centre to a point on the circle

Calculate r using the distance formula

r = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 6, - 8) and (x₂, y₂ ) = (0, 0)

r = [tex]\sqrt{(0+6)^2+(0+8)^2}[/tex] = [tex]\sqrt{36+64}[/tex] = [tex]\sqrt{100}[/tex] = 10

Hence

(x + 6)² + (y + 8)² = 100 → D

Answer:

15i√2

Step-by-step explanation:

5√(-18)

= 5√(-2 x 9)

= 5 x 3 x √-2

= 15√-2

= 15i√2

Answer:

15i[tex]\sqrt{2}[/tex]

Step-by-step explanation:

Require to know [tex]\sqrt{-1}[/tex] = i

Given

5[tex]\sqrt{-18}[/tex]

= 5[tex]\sqrt{9(2)(-1)}[/tex]

= 5 × [tex]\sqrt{9}[/tex] × [tex]\sqrt{2}[/tex] × [tex]\sqrt{-1}[/tex]

= 5 × 3 × [tex]\sqrt{2}[/tex] × i

= 15i[tex]\sqrt{2}[/tex]

Answer:

x≥-6

Step-by-step explanation:

The domain is every value of x.  Since the function does not include any values of x less than -6, x≥-6 is the domain.

The inequality which represents the domain of the function is y>=6 . Hence, option A is correct.

The domain of a function is the set of all possible input values. In other words , we could say the x - values for which valid y-values are obtained.

From the graph, the line depicts , valid y- values starting from -6 and higher.

Hence, the values include ;

Therefore, the correct option is A.

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Answer: B and D

Step-by-step explanation: Just answered on edg.

About the graph of the function option (B) the function is decreasing and option (D) the y-intercept is (0, 1) is the correct answer.

A graph can be defined as a pictorial representation or a diagram that represents data or values in an organized manner. The graph of a function f is the set of all points in the plane of the form (x, f(x)).

For the given situation,

The function is  y=(1/3)^x.

Plot this function in the graph as shown below.

From the graph, the y-intercept is (0,1) and the function is decreasing function.

Hence we can conclude that about the graph of the function option (B) the function is decreasing and option (D) the y-intercept is (0, 1) is the correct answer.

Learn more about graph of a function here

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Answer:

12+12 for east and west equals 24

10+10 for north and south equals 20

24+20 equals 44

In the end they used 44 meters of fence

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

32.75

Step-by-step explanation:

12 oz = 0.75 lbs

0.75 lbs + 32 lbs = 32.75 lbs

Answer:

C. 2x +5y = -15

Step-by-step explanation:

You want the form ax +by = c. To get that form, you need to put the x-term on the left (making sure its sign is positive) and the constant on the right.

Multiply by 5:

5y +35 = -2(x -10)

Eliminate parentheses:

5y +35 = -2x +20

Add 2x-35

2x + 5y = -15 . . . . . . corresponds to selection C

_____

Be careful of dashes when writing answers. They can be confused with minus signs.

a+c=5. Please look at the attached image to see what I did

Answer:

30x^3 -20x ²+ 15x

Step-by-step explanation:

-5x(4x-6x^2-3)= -20x²+30x^3+15x

-5x(4x-6x^2-3) = 30x^3 -20x ²+ 15x

30x^3-20x^2+15x

I think its the answer

Answer:

Correct choice is C) [tex]6x^3-22x^2+24x-8[/tex].

Step-by-step explanation:

Given that the dimensions of a box are x, 2x, and 3x.

Now each dimension is decreased by 2.

Then new dimensions of a box are (x-2), (2x-2), and (3x-2).

Now let's calculate the volume of the box which is given by

Volume = (Length) x (Width) x (Height)

[tex]=(x-2)(2x-2)(3x-2)[/tex]

[tex]=(2x^2-6x+4)(3x-2)[/tex]

[tex]=(2x^2-6x+4)(3x-2)[/tex]

[tex]=6x^3-22x^2+24x-8[/tex]

Hence correct choice is C) [tex]6x^3-22x^2+24x-8[/tex].

Answer:

B

Step-by-step explanation:

put the values of x and y into the equation respectively.

if LHS =RHS then it is a solution

e.g put (-2,-10) into the equation

-10=2(-2)-6

-10=-10

hence is a solution .

or put x value into the equation such as

(-2,-10)

y=2(-2)-6

the ans should be y=-10.As u can see is equal to the solution given.Hence is a solution.

Answer:

each friend would get about 2/3 of a pizza

Step-by-step explanation:

you would take the total amount of pizza (4) and divide it by the friends (6) which would look like this: 4 / 6 = 0.6666 (repeating) which is equal to 2/3

i hope this helps :)

Answer:

Option 5.  [tex]A(x)=\$5,000(1.041)^{x}[/tex]  

Step-by-step explanation:

we know that    

The compound interest formula is equal to  

[tex]A=P(1+\frac{r}{n})^{nt}[/tex]  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

[tex]t=x\ years\\ P=\$5,000\\ r=0.04\\n=12[/tex]  

substitute in the formula above  

[tex]A=\$5,000(1+\frac{0.04}{12})^{12x}[/tex]  

[tex]A=\$5,000(1.041)^{x}[/tex]  

Answer:

$342

Step-by-step explanation:

816/2 = 408

408-66=342

Answer: 342

Step-by-step explanation: you take 816 divide it by 2 (408) then u subtract 66 from that and u get 342. The price of the washer would cost 474 if u wanna add them to check my work.

Area: 3915

L X W

Perimeter: 264

Add all sides

I don't know what it means by type, sorry

area: 3915 mm

perimeter: 264

type: rectangle

Step-by-step explanation:

to find the area multipluy 87 and 45

to fin perimeter add 87 and 45. then multipluy by 2

Answer:

The most reasonable answer would be 7.

Step-by-step explanation:

ED is shorter than both EC and CD, and the root of 220 is 11 point something, so it would hae to be 7.

The answer would be 7.

Answer:

7multiply by 9=63

7by11=77

9by11=99

Answer=63+77+99=239

Step-by-step explanation: