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3 years ago

Tell which number is greater 27/50,27%

Mathematics

1 answer:

yaroslaw [1]3 years ago

6 0

Answer: 27 is greater

Step-by-step explanation:

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(4y+5)(7y-3)= what is the solution to this problem

nikdorinn [45]

Answer:

all work is pictured/shown

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3 years ago

Daniel opens a savings account and deposits $100 into it. Each year, the amount of money in his account increases by 5%. Use the

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it will take him 33 years to reach $500

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3 years ago

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The volume of a right circular cone varies jointly as the altitude and the square of the radius of the base. If the volume of th

Tresset [83]

Answer:13.5 inches

Step-by-step explanation:

Here, the volume of a right circular cone varies jointly as the altitude and the square of the radius of the base

So our equation for volume becomes

V = c*h*r^2

where 'h' is altitude and 'r' is radius of base and 'c' is constant

Putting the value of V,h,r,

we get,

154 = c*12*3.5*3.5

c = 22/21

Now we have volume = 77 cu and radius of the base =7/3, so putting the values we get,

77 = 22/21*h*7/3*7/3

or, h= 13.5

Hope it helps!!!

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3 years ago

Read 2 more answers

1. The equation of a parabola is given.

svp [43]

Question 1)

The given parabola is:

$y= \frac{1}{8} x^{2} +4x+20$

First we need to convert this equation to the general form similar to:

$4p(y-k)=(x-h)^{2}$

So, the given equation will be:

$y= \frac{1}{8} x^{2} +4x+20 \\ \\ 
y= \frac{1}{8}( x^{2} +32x)+20 \\ \\ 
y= \frac{1}{8}( x^{2} +32x+256)+20- \frac{1}{8}(256) \\ \\ 
y = \frac{1}{8}(x+16)^{2}-12 \\ \\ 
y+12= \frac{1}{8}(x+16)^{2} \\ \\ 
8(y+12)=(x+16)^{2} \\ \\ 
4*2(y-(-12))=(x-(-16))^{2}$

Comparing given equation with the general equation, we can write:
p = 2
h = -12
k= -16

The focus of the parabola with squared x terms lies at (h , k+p)
Using the values, we get the focus point of the given parabola (-16, -10)

Question 2.

The equation of the parabola is:
$(y-1)^{2}=16(x+3) \\ \\ 
(y-1)^{2}=4*4(x+3)$

This means:
p=4
h = -3
k =1

The directrix of the parabola with squared y term has the equation of the form:

x = h - p

Using the values, we get

x= - 3 - 4 = -7

So, the equation of the directrix of the parabola will be x = -7

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3 years ago

Mickey's age is 4 years less than 300% of Jerry's age. If Mickey is 14 years old, how old is Jerry?

olga nikolaevna [1]

Answer:

6 years

Step-by-step explanation:

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3 years ago