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3 years ago

I will mark you as brainlinest for correct answer!!!!!pleaseeeee help!!!!!!

Mathematics

1 answer:

EleoNora [17]3 years ago

5 0

Perfect square means that it has two factors that are the same.

The last two are perfect squares.

m^2 + 24m + 144 can be factored to (m+12)(m+12)

m^2 + 10m + 25 can be factored to (m+5)(m+5)

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This is hard, but I really need help!

sukhopar [10]

Please see pic, I'd solved in it.

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3 years ago

True or False: If circumference of a circle is 12*3.14, then its area is 36*3.14.

strojnjashka [21]

Answer: true

Step-by-step explanation:

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3 years ago

Evaluate the line integral, where C is the given curve. (x + 6y) dx + x2 dy, C C consists of line segments from (0, 0) to (6, 1)

Dima020 [189]

Split $C$ into two component segments, $C_1$ and $C_2$ , parameterized by

$\mathbf r_1(t)=(1-t)(0,0)+t(6,1)=(6t,t)$

$\mathbf r_2(t)=(1-t)(6,1)+t(7,0)=(6+t,1-t)$

respectively, with $0\le t\le1$ , where $\mathbf r_i(t)=(x(t),y(t))$ .

We have

$\mathrm d\mathbf r_1=(6,1)\,\mathrm dt$

$\mathrm d\mathbf r_2=(1,-1)\,\mathrm dt$

where $\mathrm d\mathbf r_i=\left(\dfrac{\mathrm dx}{\mathrm dt},\dfrac{\mathrm dy}{\mathrm dt}\right)\,\mathrm dt$

so the line integral becomes

$\displaystyle\int_C(x+6y)\,\mathrm dx+x^2\,\mathrm dy=\left\{\int_{C_1}+\int_{C_2}\right\}(x+6y,x^2)\cdot(\mathrm dx,\mathrm dy)$

$=\displaystyle\int_0^1(6t+6t,(6t)^2)\cdot(6,1)\,\mathrm dt+\int_0^1((6+t)+6(1-t),(6+t)^2)\cdot(1,-1)\,\mathrm dt$

$=\displaystyle\int_0^1(35t^2+55t-24)\,\mathrm dt=\frac{91}6$

6 0

2 years ago

Given the equation of the circle, identify the coordinates of the center. (x+2)2+(y-6)2=49

sveta [45]

Answer:

(-2, 6)

Step-by-step explanation:

Equation of a circle is:

(x − h)² + (y − k)² = r²

where (h, k) is the center and r is the radius.

In this case, the center is (-2, 6).

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2 years ago

The square root of a number is between 18 and 19

astraxan [27]

Then the number must be between 18² = 324 and 19² = 361. But is that what you want to know?

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3 years ago