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alexandr1967 [171]
3 years ago
10

Simplify the radical expression 3√(5) + 6√(45)

Mathematics
1 answer:
Svetlanka [38]3 years ago
3 0
Simplify 6 \sqrt{45}, as there is 9 as a factor. The new form is 18 \sqrt{5} . 

Then, add 18 and 3 to get 21 \sqrt{5}
The correct answer is B. 
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mars1129 [50]

Answer:

CD = two square root of 10 end square root

Step-by-step explanation:

To find the length of a segment, use the distance formula. Substitute the order pairs for the endpoints of the segment. CD has the end points (-7, -4) and (-1, -2).

d = \sqrt{(y_2-y_1)^2 + (x_2-x_1)^2} \\\\d = \sqrt{(-4--2)^2 + (-7--1)^2} \\\\d = \sqrt{-2^2 + -6^2}\\\\d = \sqrt{4 + 36}\\\\d=\sqrt {40} = 2\sqrt{10}

5 0
4 years ago
Write an exponential function for the graph that passes through the points (0,4) and (2, 36). Use the formula y=ab^x​
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Answer:

Using the equation y = abx , substitute both of your given points into that equation.

2 = ab2 and 4 = ab3   Solve each equation for a.

2⁄b2    and 4⁄b3 = a     Therefore, 2⁄b2 = 4⁄b3

                                   

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     2

Step-by-step explanation:

3 0
3 years ago
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Answer:

Step-by-step explanation:

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that means

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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