3 years ago

Please answer it soon

Mathematics

1 answer:

Jet001 [13]3 years ago

6 0

Hey dude we’re both from Nepal so here’s the written worksheet hope it helps :)

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Find the value of k for x^2 - 2kx+7k -12=0 so that they have two equal roots

Alisiya [41]

Step-by-step explanation:

x^2 -2kx +7k -12 = 0

two equal roots -->Δ = b^2 -4ac = 4k^2 - 4(7k-12)=0 = 4(k^2 - 7k +12)=4(k-4)(k-3)=0

so k =3 and k =4

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3 years ago

What is the slope of the line that passes through the given points? (1 point)

frez [133]

(1/2,3)(2,3/4)
slope = (3/4 - 3) / (2 - 1/2) = (3/4 - 12/4) / (4/2 - 1/2) =
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3 years ago

A factory wants to fill a conical storage tank with sand. The tank has a height of 23.7 meters and a diameter of 21.4 meters.

MakcuM [25]

Answer:

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Step-by-step explanation:

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2 years ago

PLEASE HELP, ANYONE? 15m is what percent of 60m; 3m; 30m; 1.5 km?

WITCHER [35]

Answer:

15/60 = 1/4 = 25%

15/3 = 5/1 = 500%

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3 years ago

Calculate the approximate area of the shape to the nearest cm2.

emmasim [6.3K]

This is very simple. So you use two formulas:

Rectangle: Length • Width

Semicircle: Area = $\frac{\pi r^2}{2}$

With that, you do 0.8 ÷ 2 = 0.4 because we will be using radius. When solved, you get 0.2512... But for this problem, I will be rounding everything to the nearest hundredths.

Area of semicircle: ≈ 0.25

Now we solve for the rectangle. That is very easy. Just multiply 0.75 • 0.8 and you get 0.6

For this problem, I'm not sure why they make you round to the nearest centimeter, but if you do, you get 1 cm. Otherwise,

Round to nearest tenth: 0.9

Round to nearest hundredths: 0.85

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3 years ago