MATHEMATICS COLLEGE

What is 398 hundreds x 52 tens?

Answers

Answer 1

Answer: 398(100) = 39800.
52(10) = 52.

39800+ 52 = 39852

ANSWER: 39852

Answer 2

Answer:

Answer:

I think its 20.696

sorry if its wrong

Step-by-step explanation:

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Susan decides to take a job as a transcriptionist so that she can work part time from home. To get started, she has to buy a computer, headphones, and some special software. The equipment and software together cost her $1000. The company pays her $0.004 per word, and Susan can type 90 words per minute. How many hours must Susan work to break even, that is, to make enough to cover her $1000 start-up cost? If Susan works 4 hours a day, 3days a week, how much will she earn in a month.
I need help with my homework
When (2x3 + 3x2 - 7x) is subtracted from (10x3 + 7x2 - 7) the result is

Anna said that the product of 7/8 ⋅ 1 1/2 =7/2. How can you tell that her answer is wrong/

Answers

Answer:

The answer is 77/16, but you can go much dipper if you want. By just simplify 77/16, in 4×13/16. And the final result will be 4.8125. Please if you find it helpful give me a like and rate me.

Answer:

it's 77/16 and just say Anna's answer is wrong.

If ln y = (ln x)2 + 2, then find dy / dx in terms of x and y.

Answers

Answer: The required value of $(dy)/(dx)$ is $(y)/(1-y).$

Step-by-step explanation: We are given to find the value of $(dy)/(dx)$ from the following equation :

$\ln y=(\ln x)^2+2~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

Differentiating both sides of equation (i) with respect to x, we have

$(d)/(dx)\ln y=(d)/(dx)((\ln x)^2+2)\n\n\n\Rightarrow (1)/(y)(dy)/(dx)=(d)/(dx)(\ln x)^2+(d)/(dx)2\n\n\n\Rightarrow (1)/(y)(dy)/(dx)=2\ln x*(d)/(dx)\ln x+0\n\n\n\Rightarrow (1)/(y)(dy)/(dx)=2(\ln x)/(x)\n\n\n\Rightarrow (dy)/(dx)=(2y\ln x)/(x).$

Thus, the required value of $(dy)/(dx)$ in terms of x and y is $(2y\ln x)/(x).$ .

Find the volume of the solid cut from the thick-walled cylinder 1 less than or equals x squared plus y squared less than or equals 2 by the cones z equals plus or minus StartRoot 4 x squared plus 4 y squared EndRoot.

Answers

Answer:

$4/3(2√(2) -1)*\pi$ this is the answer

Step-by-step explanation:

$1<= x^2+y^2 <= 2 by the cons z= +- √((x^2 + y^2))$

Let suppose

x = r∙cos(θ)

y = r∙cos(θ)

z = z

The differential volume element changes to

dV = dxdydz = r drdθdz

The limits of integration in cylindrical coordinates are:

(i)

$1 \leq x^2 + y^2\leq 2$

$1 \leq r^2 \leq 2$

since r is always positive

$1 \leq r \leq √(2)$

(ii)

$- √((x^2+ y^2)) \leq z \leq +√((x^2+ y^2))$

$- r \leq z \leq r$

(iii)

$0 \leq Theta \leq 2∙π$

we have no restrictions in radial direction.

$V = \int\limits^a_b { dV} \,$

Remaining derivation has been explained in the atatchment where we get the volume of the cylinder

The volume of the solid cut from the thick-walled cylinder and cones is 4π/3 (2√2 - 1) using cylindrical coordinates.

To determine the volume of the solid cut from the given cylinder and cones, we'll utilize cylindrical coordinates. The cylinder is represented by 1 ≤ r² ≤ 2, or 1 ≤ r ≤ √2, in cylindrical coordinates, where x² + y² = r². Similarly, the cones are represented by z = ±2r. The volume differential in cylindrical coordinates is dV = rdzdrdθ.

Integrating over the appropriate limits, we obtain the volume of the solid:

V = ∫₀²π ∫₁√₂ -2r²r²dzdrθ

Evaluating the integral, we get:

V = 4π/3 (2√2 - 1)

Learn more about Volume calculation in cylindrical coordinates here:

brainly.com/question/33911093

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Write an equation of the line perpendicular to the given line that contains P.P(4, - 7); y = 1/5x+2
Write an equation for the line in point-slope form.
(Simplify your answer. Use integers or fractions for any numbers in the equation.)
I WILL GIVE BRAINLIEST!!

Answers

Answer:

Step-by-step explanation:

perp. -5

y + 7 = -5(x - 4)

y + 7 = -5x + 20

y = -5x + 13

Alejando read 4 pages in a book in 6 minutes. How long would you expect him to read 6 pages at this rate

Answers

Answer:

So simple

4 pages = 6 min

1 page = 6/4 min

6 pages = 6 × 6/4

6 pages = 9 min

he would read 6 pages in 9 minutes

An angle is one-fourth of a circle. How many one-degree angles can be made from this angle?

Answers

Answer:

Step-by-step explanation: Right Angle - 4 times around. Around the angle ( 90 ) You would need 90 angles or 4 to make 360.

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