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2 years ago

Simplify (3√-5 +2)(4√-12 -1) Thank you in advance Full steps so I can understand!

Mathematics

2 answers:

Shkiper50 [21]2 years ago

5 0

Answer:

12√60 - 3√-5 + 8√-24 -2

Step-by-step explanation:

Use the distributive property

Multiply each by the other term outside their parantheses

for example multiply 3√-5 by 4√-12 and 3√-5 by -1.

Lina20 [59]2 years ago

5 0

Answer:

√

⋅

√

Explanation:

is the same as

witch in turn is the same as

Write as

√

Taking the

'outside' the square root changes it from

√

Step-by-step explanation:

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Answer:

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3 years ago

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What is the answer to this??

Helga [31]

Since the triangle is equilateral, all its angles are equal to 60°

AO is the bisector⇒∠OAD = 30°

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By the Pythagorean theorem

$10^2=AD^2+5^2\\AD=\sqrt{100-25} \\AD=\sqrt{75}$

$AC=AD+DC=2\sqrt{75}=10\sqrt{3}$

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3 years ago

Scott baked a batch of rolls. He gave a bag of 10 rolls to each of 7 friends he kept 1 roll for himself. How many rolls did he b

Serjik [45]

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2 years ago

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The diagonal of a rectangular swimming pool measures 29 yards. If the length of the pool is 25 yards, which measurement is close

nirvana33 [79]

Answer:

Width of the pool = 15 yards

Step-by-step explanation:

Given that:

Length of diagonal of swimming pool = 29 yards

Length of the pool = 25 yards

Let,

w be the width.

This will form a right angled triangle where the diagonal will be hypotenuse.

Using Pythagorean theorem;

$(25)^2+(w)^2 = (29)^2\\625+w^2=841\\w^2= 841 - 625\\w^2 = 216$

Taking square root on both sides

$\sqrt{w^2}=\sqrt{216}\\w=14.70$

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Svet_ta [14]

Answer:

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