Plss help me with this

Answers

Answer 1

Answer: $Use:\na* b=b\cdot a\n\na^n* a^m=a^(n+m)\n-----------------------\n1^o\ -5x^5*\left(-(1)/(5)x^2\right)=\left[-5*\left(-(1)/(5)\right)\right]* (x^5* x^2)=\boxed{1x^7=x^7}\n\n2^o\ 2ab^2*\left(-(1)/(2)a^2b\right)=\left[2*\left(-(1)/(2)\right)\right]*(ab^2* a^2b)=\boxed{-1a^3b^3=-a^3b^3}$

$3^o\ (3)/(5)xy^2*\left(-(5)/(3)x^2y^3\right)=\left[(3)/(5)*\left(-(5)/(3)\right)\right]*(xy^2* x^2y^3)=\boxed{-x^3y^5}\n\n4^o\ xy*(-2x^2y)=[1*(-2)]*(xy* x^2y)=\boxed{-2x^3y^2}$

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What is the volume of a cone with a radius of 18 cm and a height of 10 cm? Use 3.14 for pi. Round your answer to the nearest tenth. (4 points) 3275.4 cm3 3540.8 cm3 4000.2 cm3 3391.2 cm3 Previous Next

Answers

Answer: $3391.2\text{ cm}^3$

Step-by-step explanation:

The volume of cone is given by :-

$V=(1)/(3)\pi r^2 h$ , where r is radius and h is height of the cone.

Given: Radius = 18 cm

Height : 10 cm

Then , the volume of the cone will be :-

$V=(1)/(3)(3.14) (18)^2 (10)=3391.2\text{ cm}^3$

Hence, the volume of the cone = $3391.2\text{ cm}^3$

I hope this helps you

Volume of Cone = 1/3.pi.r^2.h

Volume=1/3.3,14.18^2.10

Volume=10173,6/3

Volume=3391,2

me John Doe was figuring out his federal income tax. his income was $26,800 but he was able to subtract $5,000 in deductions. he paid 15% of the remaining income in tax. how much did he pay?

Answers

1- Subtract: 26,800-5,000= 21,800 (remaining)
2-15% of 21,800 = 15/100 * 21,800 = 15*218 = $3,270

Xavier is x years old and Yvonne is y years old. Yvonne is 7 years older than Xavier. Four times Yvonne’s age is equal to 200. (a) Write an equation that could be used to solve for Yvonne’s age, y. (b) How old is Yvonne? Show your work and don’t forget the unit. (c) How old is Xavier? Show your work and don’t forget the unit

Answers

x+7= Yvonne's age.

a. 4(x+7)=200

b. 4(x+7)=200
4x+28=200
4x=172
x=43
Yvonne is 43 years old.

c. 43-7=Xavier's age.
36
Xavier is 36 years old.

You would have to write an equation. I would use the equation 4y=200. Thats your answer for (a). Then reverse the equation and solve to figure out the answer to (b). What we do to one side we do to other, right? So we would divide each side by 4. That leaves us with y=50. There's your answer to (b). Now to find Xavier's age we would simply do Yvonne's age minus 7. 50-7=43. There's your answer to (c).
A) 4y=200
B) 50 years old
C) 43 years old
Hope this helps!!!!

Recall that the length a spring streches varies directly with the amount of weight attached to it. a certain spring stretches 5cm when a 10-gram weight is attached write a direct variation equation relating the weight x and the amount of stretch y.

Answers

Direct variation is y=kx

In this case, y=1/2x. The spring stretches 5 cm for every 10 grams. Therefore if y=5 and x=10, k would have to be 1/2. That's how we come up with our direct variation model.

$This\ spring\ stretches\ in\ proportion\ to\ weight,\ that\ is,\ for\ every \n 10\ grams\ of\ weight\ the\ amount\ of\ stretch\ is\ 5\ cm.\n \nx\ [g]\ \ \ |\ \ 10\ \ |\ \ 20\ \ |\ \ 30\ \ |\ \ 40\ \ |...|\ \ \ a\ \ \ |\n------------------\ny\ [cm]\ |\ \ 5\ \ \ |\ \ 10\ \ |\ \ 15\ \ |\ \ 20\ \ |...|\ \ (1)/(2) a\ \ |\n\na\ variation\ equation\ is\ y= (1)/(2) x$

If a girl earned $43.65 by working 5 hours in one day , how much would she earn by working 7 hours in one day

Answers

So you would divide 43.65 by 5 hours (to get 8.73), then you multiply by 7, and your final answer is $61.11

Hope that helps :)

i got 61.11 after calculating it i divided 43.65 by 5 and got 8.73 and then i added 8.73 two times to 43.65 to get 61.11

Please Answer The data from a survey on the academic degrees earned by students in the United States in 2009 is shown below. Degree Male (in thousands) Female (in thousands) Marginal Totals Associate 298 489 787 Bachelor 685 916 1,601 Master 260 397 657 Professional 47 45 92 Doctorate 32 35 67 Marginal Totals 1,322 1,882 3,204 What percentage of students earning degrees in 2009 were awarded a professional degree? A. 4.89% B. 2.87% C. 6.96% D. 5.75%

Answers

Answer:

the answer is B. 2.87

Step-by-step explanation:

You must get the total of pro (professional) degrees handed out (92) Then divide that by the total amount of degrees handed out. 92/3204 in the calculator you should get 0.02871410736 times that by 100 and there's your direct answer

Your Welcome

Answer:

2.87% was correct answer on plato/edmentum

Step-by-step explanation:

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