3 years ago

Estimate the square root of 5

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

7 0

Answer:

it is around 2.2

Step-by-step explanation:

2*2=4

2.5*2.5=6.25

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Twice the difference of three less than a number.

Veseljchak [2.6K]

Answer:

the answer would be 2(3-x)

Step-by-step explanation:

x would be the number that is given and since it says twice than 2 would be outside the parenthesis since the main equation would be inside the parenthesis

3 0

3 years ago

Given the triangle below, what is the length of the third side, rounded to the nearest whole number?

Leno4ka [110]

Answer:

Step-by-step explanation:

You need the Law of Cosines for this, namely:

$x^2=21^2+14^2-2(21)(14)cos58$ where x is the missing side.

$x^2=441+196-311.5925$ and

$x^2=325.4075$ so

x = 18.0 or just 18

7 0

3 years ago

How can you add eight 8's to get the number 1,000? (only use addition)

Fudgin [204]

The answer is 888+88+8+8+8

6 0

3 years ago

I need help pls is only 1 question

Yanka [14]

Answer:

$T = 1300$

Step-by-step explanation:

Given

$Radius, r = 9\ in$

$Height, h = 14\ in$

See attachment

Required

Determine the total surface area, T

T is calculated using:

$T = 2\pi r(r + h)$

Substitute values for r and h

$T = 2\pi * 9(9 + 14)$

$T = 2\pi * 9(23)$

Remove bracket

$T = 2\pi * 9*23$

$T = 2\pi * 207$

Take $\pi = 3.14$

So, we have:

$T = 2 * 3.14 * 207$

$T = 1299.96$

$T = 1300$ --- approximated.

Hence, the surface area is 1300 square inch

4 0

3 years ago

Multiply: (-3x - 6)(3x2 - 6x + 3)

VladimirAG [237]

-9 • (x + 2) • (x - 1)2

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3 years ago

Read 2 more answers