3 years ago

How to solve problems on this website

Mathematics

2 answers:

emmainna [20.7K]3 years ago

8 0

Answer:

Theres a "add answer" just click on that and u will be able to add

Step-by-step explanation:

-BARSIC- [3]3 years ago

4 0

Answer:

You go to whoever's question you wanna answer and it should say "add answer" and just type out your answer and solve it

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Hey, try this one out guys.

MrRissso [65]

Answer:

879cm

Step-by-step explanation:

Radius is 35cm.

Diameter is 70cm.

Pie/Pi is 3.14 and so on.

Perimeter of circle:70×3.14=219.8

219.8×4=879.2

Round Off:879.2cm

6 0

3 years ago

I'm completely lost and don't really understand this.

kompoz [17]

For the third one, on the left side do 3-51.29 and keep doing it like that and you should get all the answers you need :)

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3 years ago

Find the value of k by<br>quardractic equation two real and equal roots<br>5x - 2kx +20=0

kotegsom [21]

Answer:

k = +10 or -10

Step-by-step explanation:

It's given in the question that the roots of the eqn. are real and equal. So , the discriminant of the eqn. should be equal to 0.

$= > {b}^{2} - 4ac = 0$

$= > {( - 2k)}^{2} - 4 \times 5 \times 20 = 0$

$= > 4 {k}^{2} - 400 = 0$

$= > 4( {k}^{2} - 100) = 0$

$= > {k}^{2} - 100 = 0$

$= > k = \sqrt{100} = + 10 \: or \: - 10$

3 0

2 years ago

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Pls help Simplify the product. 4(–11)

Shalnov [3]

Answer:

-44

Step-by-step explanation:

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3 years ago

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What is the area of the figure, 29, 25, 20, 14,5,15

natka813 [3]

Answer:

60900

Step-by-step explanation:

multiply all the numbers

6 0

3 years ago

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