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4 years ago

What is the square root of 25 plus the square root of 40 plus the square root 90 simplified?

Mathematics

2 answers:

riadik2000 [5.3K]4 years ago

5 0

Step-by-step explanation:

The square root of a number is whatever number times itself equals the main number.

For example:

The square root of 144 is 12, because 12*12=144.

Firstly, let's find the square root of 25. This is 5, because 5x5=25.

Next, let's find the square root of 40. This is about 6.32.

Now, let's find the square root of 90. This is about 9.48.

Next, let's add these numbers together. (5 + 6.32 + 9.48 = 20.8).

Finally, we need to simplify. The end result will be 104/5.

LUCKY_DIMON [66]4 years ago

4 0

5(√10+1)

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-TheKoolKid1O1

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3 years ago

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4 years ago

Given f(x) = x^2-2x+5<br> Find f(-2)

lbvjy [14]

Answer:

Step-by-step explanation:

f(x) = x² - 2x + 5

Yo find f(-2) substitute the value of x that's - 2 into f(x) that is for every x in f (x) replace it with - 2

So we have

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We have the final answer as

Hope this helps you

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3 years ago

WORTH 20 POINTS HELP

vfiekz [6]

Below represents the proof that the quadrilateral QRST is a parallelogram

<h3>How to prove that QRST is a parallelogram?</h3>

The coordinates are given as:

Q = (-1,-1)

R = (2,9)

S = (-4,5)

T = (-7,-5)

Calculate the length of each side using:

$d = \sqrt{(x_2 -x_1)^2 + (y_2 -y_1)^2}$

So, we have:

$QR = \sqrt{(-1 - 2)^2 + (-1 -9)^2} = \sqrt{109}$

$RS = \sqrt{(-4 - 2)^2 + (5 - 9)^2} = \sqrt{52}$

$ST = \sqrt{(-7 + 4)^2 + (-5 - 5)^2} = \sqrt{109}$

$TQ = \sqrt{(-7 + 1)^2 + (-5 + 1)^2} = \sqrt{52}$

The above computations show that opposite sides are equal.

Next, we determine the slope of each side using:

$m = \frac{y_2 -y_1}{x_2 -x_1}$

So, we have:

$QR = \frac{9 + 1}{2 + 3} = \frac{10}3$

$RS = \frac{5-9}{-4 - 2} = \frac{2}3$

$ST = \frac{5+5}{-4 + 7} = \frac{10}3$

$TQ = \frac{-5+1}{-7 + 1} = \frac{2}3$

The above computations show that opposite sides are parallel, because they have equal slope

Hence, the quadrilateral QRST is a parallelogram