Guest #3447

2 months ago

F[x]=5^x

the inverse will be

f[5^x]=x

you just have to change the x place

hope this helped

the inverse will be

f[5^x]=x

you just have to change the x place

hope this helped

Question

You purchase a $220 airline ticket. You have a discount code to receive 10% off. There is a 10.5% service charge added to the total. How much do you pay for your ticket?

Solution 1

Answer should be $174.91? if that isnt an option tell me and i will regroup

Question

A cylinder has a surface area of 1850 square meters and a radius of 9 meters. Estimate the volume of the cylinder to the nearest whole number. I don't understand. please help

Solution 1

Surface area of the cylinder = 1850 square meters

Radius = 9 meters

Surface area of cylinder = 2*pi*r*h

1850=2*22/7*9*h

h = 1850*7/2*22*9

= 32.7 meters

Volume of cylinder = pi*r*r*h

= 22/7*9*9*32.7

=**8324.48 = 8324 (approx) cubic meters**

Radius = 9 meters

Surface area of cylinder = 2*pi*r*h

1850=2*22/7*9*h

h = 1850*7/2*22*9

= 32.7 meters

Volume of cylinder = pi*r*r*h

= 22/7*9*9*32.7

=

Question

Solve the equation for a
w=7a+4b

Solution 1

W=7a+4b

w-4b = 7a

w-4b = 7a

Question

What plus what plus what equal 823

Solution 1

The answer would be 821+1+1. So as a result that would give you 823.

Hope that helped!

Hope that helped!

Solution 2

711+112=823. You can pick any number an just subtract it by 823

Question

Find the percent of decrease from 280 to 210. Round to the nearest tenth of a percent, if necessary. a 0.3% b 25% C 33.3% D 133.3%

Solution 1

I got the answer c and if I am correct then it is repeating also

Solution 2

280n = 210

Isolate n:

n = 0.75

1.0 - 0.75

**25% decrease, option b**

Isolate n:

n = 0.75

1.0 - 0.75

Question

Fruit is being handed out at a picnic. The basket contains 5 bananas, 3 oranges and 2 apples. If two pieces of fruit are handed out one after the other, which combination would have a probability of 2/9

Solution 1

Because there are 9 fruits, it should be n/9, depending on the fruit.

Apples are 2/9, so:

The combination for apples would have a probability of 2/9

Apples are 2/9, so:

The combination for apples would have a probability of 2/9

Question

Identify the expression that does not belong and explain your reasoning: 5.25 • 10^7
(2.1 • 10^2)(2.5 • 10^5)
52.5 • 10^8
(2.1)(2.5) • 10^2+5

Solution 1

D does not belong because the first 3 digits of the product of the first 3 equations is 525 and for D it is not.

Question

Ken's cafe serves hot cocoa.each serving has 9 grams of chocolate.how many grams of chocolate are in 8 servings of hot cocoa?

Solution 1

Multiply 9 * 8

answer = 72 grams

answer = 72 grams

Question

Andrew ran 4 laps on Sunday and 2.2 laps on Saturday. If each lap is 1.5 miles, how far did Andrew run last weekend?

Solution 1

4 x 1.5 + 2.2 x 1.5 = 12.3

Question

Whats the answer for this problem 8x+y=-16
-3x+y=-5

Solution 1

{x,y} = {-7/4,-2}

Explanation:

System of Linear Equations entered :

[1] 8x+y=-16

[2] -3+y=-5

Equations Simplified or Rearranged :

[1] 8x + y = -16

[2] y = -2

Regards

Sonny

Explanation:

System of Linear Equations entered :

[1] 8x+y=-16

[2] -3+y=-5

Equations Simplified or Rearranged :

[1] 8x + y = -16

[2] y = -2

Regards

Sonny

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