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4 years ago

Convert 300 Kelvin to Celsius. Write your answer using decimals.

Mathematics

1 answer:

Nana76 [90]4 years ago

6 0

Answer:

26.85

Step-by-step explanation:

Formula: 300K-273.15=26.85

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Help me with this please

victus00 [196]

Answer:

(4,2)

Step-by-step explanation:

3 0

3 years ago

Write an equation (a) in slope-intercept form and (b) in standard form for the line passing through (22,99) and perpendicu

liberstina [14]

Y-99=-1/33(x-22)

a). y = 1/33x + 98 1/3

b) 33y = x + 109 1/3
x - 33y = -109 1/3

5 0

3 years ago

What is the factored form of 3x^2-5x-2

Klio2033 [76]

3x^2 - 5x - 2
3x^2 - 6x + x - 2
3x (x - 2) + 1 (x - 2)
(3x + 1) (x - 2)

3 0

4 years ago

17. A hemisphere of lead of radius 7 cm is cast into a right circular cone of height 49 cm. Find

Pavlova-9 [17]

Answer:

$r = 3.74cm$

Step-by-step explanation:

Given

Hemisphere

$Radius = 7cm$

Cone

$Height = 49m$

Required

Determine the radius of the cone

First, we calculate the volume (V1) of the hemisphere.

$V_1 = \frac{2}{3}\pi r^3$

Substitute 7 for r

$V_1 = \frac{2}{3}\pi * 7^3$

$V_1 = \frac{2}{3}\pi * 343$

$V_1 = \frac{686}{3}\pi$

Volume (V2) of a cone is:

$V_2 = \frac{1}{3}\pi r^2h$

Because the lead is cast into a cone, then they have the same volume.

So, we have:

$\frac{686}{3}\pi = \frac{1}{3}\pi r^2h$

$686 = r^2h$

Substitute 49 for h

$686 = r^2 * 49$

Divide both sides by 49

$r^2 = \frac{686}{49}$

$r^2 = 14$

$r = \sqrt{14$

$r = 3.74cm$

<em>Hence, the radius of the cone is 3.74cm</em>

5 0

3 years ago

Maria bought a stock for x dollars, and she sold it at a profit of 20 %. Write a

Rus_ich [418]

Answer: 1.2x

Step-by-step explanation:

Profit = Selling price - Cost

She bought the stock at a cost of x dollars

Her profit was 20% of that, which is 0.2x dollars

Selling price = Profit + Cost = x + 0.2x = 1.2x

8 0

2 years ago