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Nady [450]
3 years ago
12

Show work please! Thank you! :) I am giving 21 points!

Mathematics
1 answer:
Umnica [9.8K]3 years ago
7 0

Answer:

Answer below

Step-by-step explanation:

Considering the information of the Adult T-shirt sizes, calculate the length of a large size T-shirt. using the small and the medium sizes to check your answer.

a) medium size

     30/20 = x/22

     x = 30x22/20

     x = 660/20

     x = 33 in

b) small

    27/18 = x/22

    x = 22x27/ 18

    x = 594/18

    x = 33 in

Both results are equal that mean that doesn't matter which measures are used to calcule the sizes of another T-shirt, There is proportion among them.

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An ellipse has a center at the origin, a vertex along the major axis at (10, 0), and a focus at (8, 0).
nekit [7.7K]

Answer:

In standard form x^2/64 + y^2/100 = 1

Step-by-step explanation:

The major axis is the y axis because 10 has a larger value than 8.  

8x8 = 64

10 x10 = 100

7 0
2 years ago
Check whether <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B5%7D%20" id="TexFormula1" title=" \frac{4}{5} " alt=" \f
steposvetlana [31]

Answer:

Non terminating

Step-by-step explanation:

4/5=0.8 so non terminating

Hope this helps :D

6 0
3 years ago
Circumfrance of a circle, (Show working)
Ronch [10]

Answer:

25.1cm

Step-by-step explanation:

C=2πr

here radius, r=4 cm and π=3.142

Put values in formula.

C=2(3.142)(4)

C=25.1 cm (Rounded to 1 decimal place)

3 0
3 years ago
Read 2 more answers
Use implicit differentiation to find the negative slope of a tangent to the circle x^2+y^2=16 at x=-2
SVETLANKA909090 [29]

Answer:

slope = - \frac{\sqrt{3} }{3}

Step-by-step explanation:

Differentiating implicitly with respect to x

2x + 2y \frac{dy}{dx} = 0

2y \frac{dy}{dx} = - 2x

\frac{dy}{dx} = - \frac{2x}{2y} = - \frac{x}{y}

\frac{dy}{dx} is the measure of the slope of the tangent

rearrange equation to find corresponding y-coordinate of x = - 2

y² = 16 - 4 = 12 = 2\sqrt{3} ⇒ y = ± 2\sqrt{3}

using x = - 2, y = - 2\sqrt{3}, then

\frac{dy}{dx} = - \frac{1}{\sqrt{3} } = - \frac{\sqrt{3} }{3}


3 0
3 years ago
A regular pentagonal prism has a volume of 2,850 cubic millimeters. what is the height of the prism? a regular pentagonal prism
zlopas [31]

Answer:

Height = 19mm.

Step-by-step explanation:

Area of a regular polygon =  (A * P) / 2 where A = side / (2 * Tan (π / N)) where, N = Number of sides, A = Apothem,  P = Perimeter.

Here A = 5, P = 5*12 = 60 so

Area  of the base  = (5 * 60) / 2 = 150 mm^2.

Volume = area base * height so

Height = volume / area of base

            = 2850 / 150

            = 19 mm.

5 0
2 years ago
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