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bazaltina [42]
3 years ago
11

Help me goddammit!!!! Solve the system of equations.

Mathematics
1 answer:
Slav-nsk [51]3 years ago
7 0
It should be -2,4 or -5,1.


since both answers = y then you put them equal to each other and then solved for x.


x+6=x^2 +8x +16
0=x^2 +7x +10
0=(x+2)(x+5)

x=-2 or -5


and for y I input the two separately into one of the equations

y= (-2)+6

y=4


y=(-5)+6

y=1


and then I double checked by imputing my y's and x's  into the remaining equation.


(4)=(-2)^2 +8(-2)+16
4=4-16+16
4=4


(1)=(-5)^2 +8(-5)+16
1=25-40+16
1=1

I hope your tests go well with the help of this knowledge.

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Sergio [31]

Answer:

-1

Step-by-step explanation:

slope: change in y divided by change in x

y2-y1/x2-x1

-11-(-5)/4-(-2)

-11+5/4+2

-6/6

-1

5 0
2 years ago
Name the property. (6x4) x3 = 6x(4x3)​
Helga [31]

Answer:

Associative

Step-by-step explanation:

When three or more numbers are multiplied, the product is the same regardless of  the way in which the numbers are grouped.

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3 years ago
The five circles making up this archery target have diameters of length $2,4,6,8,$ and $10$. What is the total red area?
Sliva [168]

Answer:

A=15\pi\ units^2

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

we know that

It is given that the diameter of 5 circles making up the archery is 2,4,6,8, and 10.

To determine the total red area, we use the formula for area of the circle

A=\pi r^{2}

step 1

Find the Area of the 1st red circle

r=2/2=1\ unit ---> the radius is half the diameter

A_1=\pi (1)^{2}=\pi\ units^2

step 2

Find the Area of the 2nd white circle

r=4/2=2\ units ---> the radius is half the diameter

A_2=\pi (2)^{2}=4\pi\ units^2

step 3

Find the Area of the 3rd red circle

r=6/2=3\ units ---> the radius is half the diameter

A_3=\pi (3)^{2}=9\pi\ units^2

step 4

Find the Area of the 4th white circle

r=8/2=4\ units ---> the radius is half the diameter

A_4=\pi (4)^{2}=16\pi\ units^2

step 5

Find the Area of the 5th red circle

r=10/2=5\ units ---> the radius is half the diameter

A_5=\pi (5)^{2}=25\pi\ units^2

The total red area is given by

A=A_5-A_4+A_3-A_2+A_1

substitute

A=25\pi-16\pi+9\pi-4\pi+\pi

A=15\pi\ units^2

7 0
3 years ago
Round 7/12 to the nearest hundredth
Naddik [55]

Answer:

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Step-by-step explanation:

so you have to round to the narest 0.01 the easy way to do it is round to the hundreth place. And you will get your answer which is 7.00

8 0
3 years ago
What are the values of​ x, y, and​ z?
hoa [83]
<h3><u>To find value of x</u></h3>

<u>Formula applied:</u>

Exterior angle=Sum of interior angles

Answer:

  • x=66⁰+45⁰

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<h3 />

<h3><u>To find value of z:</u></h3>

<u>Formula applied:</u>

Exterior angle=Sum of interior angles

Answer:

  • 119⁰=43⁰+z⁰

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<h3><u>To find value of y:</u></h3>

  • ∠1+66⁰=180⁰(L.P)

  • ∠1=180⁰-66⁰

  • ∠1=114⁰

<u>Formula</u><u> </u><u>used:</u>

Sum of angles of a triangle =180⁰

Answer:

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6 0
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