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shepuryov [24]
3 years ago
12

Select the correct answer from he drop down menu. The solution for -2x^2 +12x=0 is...

Mathematics
2 answers:
guapka [62]3 years ago
4 0

Answer:

Choice C is correct answer.

Step-by-step explanation:

Given equation is:

2x²+12x = 0

We have to find the value of x.

We use Zero-Product Property to solve this question.

Taking -2x common from given equation,we get

-2x(x-6) = 0

Applying Zero-Product Property to above equation we get

-2x = 0 or  x-6 = 0

x = 0 or x = 6

hence, the solution of given equation is {0,6}.


lana66690 [7]3 years ago
3 0

Answer:

Solution set is (0,6).

Step-by-step explanation:

In this question we have to find out the solution set for the equation -2x² + 12x = 0

To get the solution set we will solve this equation to get the values of x.

-2x(x-6) = 0

⇒ x = 0 Or (x-6) = 0

When x - 6 = 0

We will add 6 on both the sides

x - 6 + 6 = 0 + 6

x = 6

Therefore the solutions of the equation are 0 or 6 which means a set of (0,6).


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These cylinders are similar. Find the surface area of the smaller cylinder. Round to the nearest tenth.
GarryVolchara [31]

Answer:

Surface area = 80.4 cm²

Step-by-step explanation:

The diagram of both cylinders is attached below for a better understanding.

<h3>First find the radius of larger cylinder:</h3>

Surface area = 2πrh + 2πr²

236 = 2(3.14)(5)r + 2(3.14)r²

236 = 31.4r + 6.28r²

236 = 6.28(r² + 5r)

35.58 = r² + 5r

r = 3.97 cm

<h3>Find the radius of Smaller cylinder:</h3>

Two cylinders are in proportion if their heights and radius are in proportion:

Ratio of height of small cylinder to big cylinder = 3/5 = 0.6

So ratio of radius of both is also 0.6

Let R be the radius of small cylinder

ratio of radius of small cylinder to big cylinder = R / 3.97

R = (0.6)(3.97)

R = 2.38

<h3 /><h3>Surface Area for small cylinder:</h3>

R = 2.38cm and h = 3 cm

Surface area = 2πrh + 2πr²

Surface area = 2(3.14)(2.38)(3) + 2(3.14)(2.38)²

Surface area = 80.4115cm²

Round of to nearest tenth

Surface area = 80.4 cm²

5 0
3 years ago
49 7 because (-7) (-7) = -49​
nasty-shy [4]

Answer:

nope ummm a negative number times another negative is positive. whats your question tho?

6 0
2 years ago
Find the slope of each line.
DedPeter [7]

Answer:

C) 1

Step-by-step explanation:

Slope = change in y over change in x

In the graph shown as y goes up 1 x goes up 1

so slope = 1/1 or 1

4 0
3 years ago
Read 2 more answers
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kvasek [131]
C.) 24

The equation must be simplified first
8 0
3 years ago
Find all zeros of x^4+x
Yuri [45]

Answer:

-1 and 0

Step-by-step explanation:

X ^4+x = 0;

x*(x^3+1)=0;

x*[(x^3-x)+(x+1)]=0;

x*[x(x-1)(x+1)+(x+1)]=0;

x*(x+1)(x^2-x+1)=0;

Since x^2-x+1=0 has no intersection with the X-axis, there is no x value such that y=0

x=0 or -1

4 0
2 years ago
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