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4 years ago

What is the first operation used in solving this equation 2x + 5 = 10

Mathematics

2 answers:

vovikov84 [41]4 years ago

8 0

Subtraction. you subtract 5 from both sides.

Zielflug [23.3K]4 years ago

8 0

Answer is subtraction.

First you would subtract 5 on both sides
2x= 5
Then divide by 2
X= 5/2

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3 years ago

Let V be the volume of the solid obtained by rotating about the y-axis the region bounded y = 4x and y = x2/4 . Find V by slicin

aliya0001 [1]

Answer:

Step-by-step explanation:

Consider the graphs of the $y = 4x$ and $y = \frac{x^{2} }{4}$ .

By equating the expressions, the intersection points of the graphs can be found and in this way delimit the area that will rotate around the Y axis.

$4x = \frac{x^{2} }{4} \\ x^{2} = 16x \\ x^{2} - 16x = 0 \\ x(x-16) = 0$ then $x=0$ o $x=16$ . Therefore the integration limits are:

$y = 4(0) = 0$ and $y = 4(16) = 64$

The inverse functions are given by:

$x = 2 \sqrt{y}$ and $x = \frac{y}{4}$ . Then

The volume of the solid of revolution is given by:

$\int\limits^{64}_ {0} \, [2\sqrt{y} - \frac{y}{4}]^{2} dy = \int\limits^{64}_ {0} \, [4y - y^{3/2} + \frac{y^{2}}{16} ]\ dy = [2y^{2} - \frac{2}{5}y^{5/2} + \frac{y^{3}}{48} ]\limits^{64}_ {0} = 546.133 u^{2}$

6 0

4 years ago

A formula for finding the perimeter of a rectangle is P=2L +2W . if you know the perimeter (P) and the length (L) of a rectangle

Neko [114]

The original equation is
P=2L+2W

We will just switch the unknowns around. To find width (W), we must isolate it in the equation by moving 2L over to the other side:

P-2L=2W

(P-2L)/2=W

W=(P-2L)/2

There you go!!

If this is helpful, please mark me brainliest. :)

5 0

3 years ago

Determine cos 0 given the following function: tan0=8/5

prisoha [69]

Answer:

Step-by-step explanation:

8/5 divided by 0 = 0

6 0

3 years ago

Which polynomial equation of least degree has -2, -2, 3, and 3 as four of its roots?

I am Lyosha [343]

Answer:

The and is x-2)-2(x + 3)3=0

4 0

3 years ago