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2 years ago

Which of the following are solutions to the equation below? check all that apply. 4x^2+4x+1=9

Mathematics

1 answer:

AVprozaik [17]2 years ago

8 0

±Answer:

X 1 = 1 ; X 2 = -2

Step-by-step explanation:

We clear the whole numbers, equal to (zero) and use the calculation formula of the quadratic function, according the image:

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Enter the equation of the circle described below.<br><br> Center (3, -2), radius = 5

Alik [6]

Answer:

$(x-3)^{2} +(y+2)^{2} =5^{2}$

Step-by-step explanation:

The equation of the circle with center A=(a,b) and radius = r are:

$(x-a)^{2}+(y-b)^{2} =r^{2}$

When A=(3,-2) and radius=r=-5

$(x-3)^{2} +(y+2)^{2} =5^{2}$

5 0

3 years ago

Sound policy requires that a certain number of trees be planted for every tree that is cut down for example of 8 trees are cut d

Nimfa-mama [501]

Answer:

30 trees

Step-by-step explanation:

Given the policy:

8 trees are cut down 48 trees will be planted

If homeowner is going to cut down five trees on his property how many trees will be planted

Since :

8 trees cut down = 48 planted

5 trees cut down = X

Cross multiply :

8 * X = 48 * 5

8X = 240

X = 240/8

X = 30

Hence, 30 trees will need to be planted

4 0

2 years ago

Let a = 0.9876 and b = 0.9887 with N = 2, calculate the midpoint.

rodikova [14]

Answer:

For a=0.9876 and b=0.9887 mid point will be 0.98815

Step-by-step explanation:

We have given a = 0.9876 and b = 0.9887

And N = 2

We have to find the mid point

For finding mid point we know that formula

Midpoint $=\frac{a+b}{2}$ , here we have given a=0.9876 and b = 0.9887

So midpoint will be $=\frac{0.9876+0.9887}{2}=\frac{1.9763}{2}=0.98815$

So for a=0.9876 and b=0.9887 mid point will be 0.98815

5 0

3 years ago

PLEASE HELP ME TRYING TO MAKE HONOR ROLL PLASE HELP PLEASE

Helga [31]

Step-by-step explanation:

a+(a+60)=760

a=adult tickets

a+60=student tickets

a+a+60=2a+60

2a+60=760

-60 -60

2a=700

÷2. ÷2

a=350

350 adult tickets

6 0

2 years ago

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NNADVOKAT [17]

Answer:

Step-by-step explanation:

5 0

2 years ago