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Free_Kalibri [48]
3 years ago
15

What's 75% of what number is 24? what's 65% of what number is 39? please answer both

Mathematics
2 answers:
Sholpan [36]3 years ago
8 0

Answer:

Step-by-step explanation:

ion know

n200080 [17]3 years ago
3 0
A) 75/100*X=24 => 3/4*x=24=> X=4*24/3=4*8=32°°°°°° b) 65/100*X=39 => 13/20*X=39 => X=20*39/13 => X=20*3=60 ~~~~~~ Have a nice day!!!!★★
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pleeeeeeeeeeeease hellllllllp meeeeeee the circle has a center of 0.its raduis is 3 cm,and the central angle A measures 100.what
Vsevolod [243]

Answer:

2.5 pi

Step-by-step explanation:

Comment

If you were trying to get the area of a whole circle, you would use

Area = pi r^2

You have to modify the formula to show that just part of the circle has an area that you are interested in.

The new formula is

Area = (theta/360) pi r^2

Givens

r = 30 cm

theta = 100

Solution

Area = (100 / 360) * pi * r^2       Substitute the givens into this formula

Area = (5 / 18) * pi * 3^2              Expand

Area = (5 / 18) * pi * 9                  Cancel 9 into 18

Area = 5/2 * pi

Area = 2.5 * pi

7 0
2 years ago
Identify the surface with the given vector equation. r(s, t) = s sin 4t, s2, s cos 4t
k0ka [10]

Answer:

Circular paraboloid

Step-by-step explanation:

Given ,

r(s,t)=ssin4t,s^2,scos4t

Here, these are the respective x,y,z axes components.

  • <em>Component along x axis r_i : ssin4t</em>
  • <em>Component along y axis r_j : s^2</em>
  • <em>Component along z axis r_k : scos4t</em>

We see that , from the parameterised equation , r_i^2+r_k^2=s^2sin^24t+s^2cos^24t\\r_i^2+r_k^2=s^2\\r_i^2+r_k^2=r_j

This can also be written as :

x^2+z^2=y

This is similar to an equation of a parabola in 1 Dimension.

By fixing the value of z=0,

<u><em>We get y=x^2 which is equation of a parabola curving towards the positive infinity of y-axis and in the x-y plane.</em></u>

By fixing the value of x=0,

<u><em>We get y=z^2 which is equation of a parabola curving towards positive infinity of y-axis and in the y-z plane. </em></u>

Thus by fixing the values of x and z alternatively ,  we get a <u>CIRCULAR PARABOLOID. </u>

4 0
3 years ago
What is the length of the missing leg?
sp2606 [1]

Answer:

a=12

Step-by-step explanation:

Pythagorean Theorem: a^{2}+b^{2}=c^{2}

In this case, a = 9, b = a, and c = 15.

9^{2}+a^{2}=15^{2}

81+a^{2}=225

The, we subtract 81 from both sides getting:

a^{2}=144,

Then, a=12

6 0
2 years ago
Is 19,279 divisible by 3
Vanyuwa [196]
If you are looking for decimals yes but if not then no
5 0
2 years ago
Find the product of A(8 + 3).<br> O 413 +673<br> O 2/3 +6<br> 82 +63<br> 4V2 +6
ale4655 [162]
Answer:

4V2 +6


step-by-step- Anawer


V4 = 2

V8 : 2V2

2(2V2 +3 )

4V2 + 6
8 0
3 years ago
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