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Pepsi [2]
3 years ago
6

What’s the square root of -121

Mathematics
1 answer:
irakobra [83]3 years ago
5 0
The answer is 11 i

<em />
<em>Explanation:
</em>
The square root needs to be a number that can be multiplied by itself and equal the original number.

In this case, the number is 11, 11*11 = 121

However, you are looking for the square root of a negative number, due to this you would add i to the answer,
i = imaginary number, or -

( Depending on your grade/ teacher however, you can put "no solution"

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Gabrielle's age is two times Mikhail's age. The sum of their ages is 84. What is Mikhail's age?
Dvinal [7]

Answer:

28

Step-by-step explanation:

Mikhail's age:x

Gabrielle's age:2x

x+2x=84

3x=84

x=84÷3

x=28

6 0
3 years ago
Read 2 more answers
Compute: (1 2/5 +3.5÷1 1/4 )÷2 2/5 +3.4÷2 1 /8 −0.35
nikdorinn [45]

Answer:

Answer: 3

Step-by-step explanation:

Use BODMAS

<u>Step 1: Open bracket (1 2/5 +3.5÷1 1/4 )</u>

<em>Convert mixed fractions into improper fractions</em>

7/5 + 3.5 ÷ 5/4

<em>Divide 3.5 by 5/4</em>

7/5 + 2.8 = 4.2

<u>Step 2: Carry out all divisions</u>

<em>Convert mixed fraction into improper fractions</em>

4.2 ÷2 2/5 +3.4÷2 1 /8 −0.35

4.2 ÷ 12/5 + 3.4 ÷ 17/8 - 0.35

1.75 + 1.6 - 0.35

<u>Step 3: Solve</u>

1.75 + 1.6 - 0.35

3.35 - 0.35

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4 0
3 years ago
Find the domain of the function f(t)=√t +3√t
Serjik [45]

Answer:

\mathrm{Domain\:of\:}\:4\sqrt{t}\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:t\ge \:0\:\\ \:\mathrm{Interval\:Notation:}&\:[0,\:\infty \:)\end{bmatrix}

The graph is also attached below.

Step-by-step explanation:

Given the expression

f\left(t\right)=\sqrt{t}\:+3\sqrt{t}

We know that the domain of a function is the set of inputs or argument values for which the function is real and defined.

We know that we can not have a negative value of 't' inside the radicals because if we put any negative number inside the radical expression, it would make the function undefined.

In other words,  the value of t ≥ 0.

Therefore, the function domain is:

\mathrm{Domain\:of\:}\:4\sqrt{t}\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:t\ge \:0\:\\ \:\mathrm{Interval\:Notation:}&\:[0,\:\infty \:)\end{bmatrix}

The graph is also attached below.

7 0
3 years ago
I really need someone to help me with this math NO links
tangare [24]

Answer:

A. He has $22 because he spends $2 on snacks each day.

B. He spends $2 a day, in the table we can see it decreases by $2 each day, so he spends $2 every day.

C. Yes because the cost evenly decreases by $2, therefore it is a linear relationship.

D. ?

E. X ÷ Y = Z

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4 0
3 years ago
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Use a scientific calculator to evaluate ln 26 (round to the nearest ten-thousandth).
tamaranim1 [39]
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4 years ago
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