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3 years ago

IS ANYONE GOOD AT SCIENTIFIC NOTATION?!

1 answer:

6 0

Yes. Many contributors to Brainly are quite good at scientific notation. Especially the ones who check in regularly here in the Mathematics category.

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Find the distance between points M and N.<br>M= (3,-2)<br>N= (5,-6)

MaRussiya [10]

Answer:

Step-by-step explanation:

The formula for distance between points is $\sqrt{(x.2-x.1)^{2} +(y.2-y.1)^{2}$

So when you inserts the coordinates in this formula, it would be $\sqrt{(-2-3)^2+(-6-5)^2}$

$\sqrt{(-5)^2+(-11)^2}$

$\sqrt{25+121}$

$\sqrt{146}$

=12.08305

Usually, distance is round to whole number. So, it would be 12

4 0

3 years ago

What is the result of converting 0.74 hours into minutes?

yKpoI14uk [10]

44 minutes and 24 seconds

4 0

3 years ago

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The lions won 16 games last year. This year the lions won 20 games. What is the percent increase in the number of games the lion

lora16 [44]

Do 20/16 and that is your answer 1.25 = 125%

6 0

3 years ago

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Find the values of x and y.

vova2212 [387]

Look at the picture.

We have the equation (1) 12x + 4y = 40.

We know, the sum of the acute angles in a right triangle is 90°.

Therefore we have the equation (2) (12x + 4y) + (17x - y) = 90

Substitute (1) to (2):

40 + 17x - y = 90 <em>subtract 40 from both sides</em>

17x - y = 50 (3)

We have the system of equations:

$\left\{\begin{array}{ccc}12x + 4y = 40&|:4\\17x-y=50\end{array}\right\\\underline{+\left\{\begin{array}{ccc}3x + y = 10\\17x-y=50\end{array}\right}\ \text{add both side of equations}\\.\qquad20x=60\qquad|:20\\.\qquad x=3$

Substitute the value of x to (3)

$17(3)-y=50\\51-y=50\qquad|-51\\-y=-1\to y=1$

Answer: x = 3 and y = 1.

4 0

3 years ago

What is 5.4 x 2 3/4 show your work

VladimirAG [237]

Answer:

14.85

Step-by-step explanation:

4.4 x 2.75 = 14.84

2.75

4.4

-------

(Multiply it out)

3 0

3 years ago

Read 2 more answers