2 years ago

Explain how to get the product of 2 times the square root of 5 and 4 times the square root of 10

Mathematics

1 answer:

Vlad1618 [11]2 years ago

6 0

The square root of 5 is 2.2 and 4 times the square root of 10 is 100

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What is the equation of the line that passes through point (4, 12) and has a y-intercept of —2?

zmey [24]

Answer:

Step-by-step explanation:

The slope-intercept form of an equation of a line:

m - slope

b - y-intercept

We have y-intercept b = -2. Substitute:

We have the point (4, 12) → x = 4, y = 12. Put them in the equation:

12 = 4m - 2 <em>add 2 to both sides</em>

14 = 4m <em>divide both sides by 4</em>

14/4 = m → m = 3.5

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3 years ago

Read 2 more answers

A.) 10<br> B.) 25<br> C.) 20<br> D.) 15

Sergio [31]

2x+4=10
2x=6
x=3
2(3)+4= 10
(plus, on parallelograms like that, parallel sides are equal to each other)

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3 years ago

1.) A line has a slope of 2 and passes through the point (3,4). Write the equation of the line in slope-intercept form. [y=mx+b]

emmasim [6.3K]

Answer: y= 2x-2

Step-by-step explanation:

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3 years ago

Use the formula to evaluate the series 1/4 + 1/9 + 1/27 + 1/81.

Dmitriy789 [7]

Is the first term supposed to be 1/4, or did you actually mean 1/3?

I'll assume the latter. Write

$S=\dfrac13+\dfrac19+\dfrac1{27}+\dfrac1{81}$
$S=\dfrac13+\dfrac1{3^2}+\dfrac1{3^3}+\dfrac1{3^4}$
$\dfrac13S=\dfrac1{3^2}+\dfrac1{3^3}+\dfrac1{3^4}+\dfrac1{3^5}$
$\implies S-\dfrac13S=\dfrac13-\dfrac1{3^5}$
$\dfrac23S=\dfrac13\left(1-\dfrac1{3^4}\right)$
$S=\dfrac12\left(1-\dfrac1{81}\right)$
$S=\dfrac{40}{81}$

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3 years ago

gabe goes to the mall. if k is the number of items he bought, the expression 17.55k+27 gives the amount he spent in dollars at o

Natali5045456 [20]

Answer:

68.55

Step-by-step explanation:

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3 years ago