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3 years ago

What is the square root of -16? 0-81 041 OO

Mathematics

2 answers:

Nady [450]3 years ago

7 0

Answer:

4 i

Step-by-step explanation:

JulijaS [17]3 years ago

5 0

Answer: 4 i

Finding square roots of of numbers that aren't perfect squares without a calculator.

Example: Calculate the square root of 10 ( ) to 2 decimal places.

Find the two perfect square numbers it lies between.

Divide 10 by 3.

Average 3.33 and 3. ( ...

Repeat step 2: 10/3.1667 = 3.1579.

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Find the following algebra, I am in class and plz give explanation

Lelechka [254]

1) Solving $4a+4b-ac-bc$ we get $(a+b)(4-c)$

2) Solving $16a^4-8b$ we get $8(2a^4-b)$

3) Solving $x^2-8x+15$ we get $(x-3)(x-5)$

Step-by-step explanation:

We need to solve the following expressions:

1) $4a+4b-ac-bc$

We will solve this expression by factoring common terms:

$4a+4b-ac-bc$

Factoring 4 from 4a+4b and -c from -ac-bc

$4(a+b)-c(a+b)$

Taking common term

$(a+b)(4-c)$

2) $16a^4-8b$

We will solve this expression by factoring common terms:

$16a^4-8b$

Taking 8 as common term:

$8(2a^4-b)$

3) $x^2-8x+15$

We can solve the expression by breaking the middle term into 2

$x^2-3x-5x+15\\Finding\,\,common:\\=x(x-3)-5(x-3)\\=(x-3)(x-5)$

Keywords: Finding factors

Learn more about Finding factors at:

#learnwithBrainly

6 0

2 years ago

What is the answer to 5y=2x

Andrews [41]

Answer:

the answer is Y =2/5x

Step-by-step explanation:

if it help u can follow me

6 0

2 years ago

Read 2 more answers

What is the value of the expression All of 3.9 multiplied by 10 to the power 5 over all of 1.3 multiplied by 10 to the power 2?

Dima020 [189]

So first write out the expression:
$\frac{3.9*10^{5}}{1.3*10^{2}}$
take two 10's from the top to cancel with the two 10's on the bottom.
3.9/1.3 is 3.
The answer is 3*10^3

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2 years ago

Help me please<br><br> thanks in advance

Mandarinka [93]

The answer is equal to 10.

3 0

3 years ago

Which of the following equals 140 to nearest 10

jarptica [38.1K]

<span>Which of the following equals 140 to nearest 10
A.134

B.145

C.136

D.146</span>

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2 years ago