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guajiro [1.7K]
3 years ago
9

Combine and simplify these radicals. √8* √ 20

Mathematics
2 answers:
guapka [62]3 years ago
8 0

Answer:

4√10

Step-by-step explanation:

√(8) √(20)

= √(8 x 20)

= √(160)

= √(16 x 10)

= √(16) x √(10)

= 4 x √10

= 4√10

Natasha2012 [34]3 years ago
4 0

Answer:

4\sqrt{10}

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Given

\sqrt{8} × \sqrt{20}

= \sqrt{8(20)}

= \sqrt{160}

= \sqrt{16(10)}

= \sqrt{16} × \sqrt{10}

= 4\sqrt{10}

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Sever21 [200]

The actual height of building is 1800 feet.

Step-by-step explanation:

Given,

Height of building in model = 3 inches

Scale used by engineer;

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Actual height of building = Height in model * Scale used

Actual height of building = 3 * 600

Actual height of building = 1800 feet

The actual height of building is 1800 feet.

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3 years ago
What are the zeros of this function?
BabaBlast [244]

Answer:

x = 0 and x = 6

Step-by-step explanation:

See the graph attached to this question.

It is clear from the graph that the curve touches x-axis i.e. y becomes zero at points x = 0 and x = 6

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3 years ago
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4 0
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-4x + 11y = 15<br><br> x=2y<br><br><br> Solve for y and x
Stolb23 [73]

Answer:

to find Y

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x - 2y = 0

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equal= -3x + 9y= 15

since x=2y

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.

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