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ELEN [110]
3 years ago
11

I need help guys thanks so much

Mathematics
1 answer:
Nastasia [14]3 years ago
7 0

Answer: A & C

Step-by-step explanation:

i=\sqrt{-1}

\sqrt{-1}   *\sqrt{4} =\sqrt{-4}

You can also simplify the above by taking the -4 out of the radical

It becomes 2 x \sqrt{-1}, which can be simplifed to C

You might be interested in
the combined age of april and laura is 23 years. laura's age is two years more than half of april's age. what is laura's age
Kipish [7]

Laura's age is 9 years.

Solution:

Let x be the age of April.

Laura's age = 2 years more than half of April's age

<u>Convert statement into algebraic expression:</u>

Half of April's age = \frac{x}{2}

2 years more than half of April's age = \frac{x}{2}+2

Combined age of April and Laura = 23

⇒ April's age + Laura's age = 23

$\Rightarrow \ \ x+(\frac{x}{2}+2) =23

$\Rightarrow \ \ x+\frac{x}{2}+2 =23

$\Rightarrow \ \ \frac{x}{1}+\frac{x}{2}+\frac{2}{1} =23

To add the fractions make the denominators same.

Multiplying 2 on both numerator and denominator of unlike terms, we get

$\Rightarrow \ \ \frac{x\times2}{1\times2}+\frac{x}{2}+\frac{2\times2}{1\times2} =23

$\Rightarrow \ \ \frac{2x}{2}+\frac{x}{2}+\frac{4}{2} =23

Denominators are same, now add the fractions.

$\Rightarrow \ \ \frac{2x+x+4}{2} =23

Do cross multiplication.

$\Rightarrow \ \ 2x+x+4=23\times2

$\Rightarrow \ \ 3x=46-4

$\Rightarrow \ \ 3x=42

$\Rightarrow \ \ x=14

Aprils's age = 14 years

Laura's age = \frac{14}{2}+2

                    = 7 + 2

Laura's age = 9

Hence Laura's age is 9 years.

8 0
3 years ago
Math need help asap ty po sa makaka sagot
Hatshy [7]
<h2>Answer:</h2>

please see analysis

<h2>Step-by-step explanation:</h2>

\left\{\right.{ \triangle}\ RST\cong { \triangle}\ DEF

(SSS\ Congruence\ Postulate)

2.\ { \triangle\ CAT\cong { \triangle\ BED\ \left\{\right.Given\left.\ \right\}

\bar{AT}\cong\bar{ED}

\overline{AT}=20

so\ \overline{ED}=20

DE=3x-7=20\rightarrow\ x=9

<em>I hope this helps you:)</em>

4 0
2 years ago
Question 6 (1 point)
Shalnov [3]
2. Dividing exponential expression with the same base is what the left hand fractional expression is. Z^8/Z^?=z^6. Since all the bases are the same. To get the exponential power 6 on the right we subtract the denominator’s (bottom part of the fraction) exponential power (on the left) from the numerator’s (top part) exponential power.

Then, 8 - ? = 6? 2 is the only number to make the left equal the right side. This, z^8/z^2=z^6
8 0
3 years ago
Cone because if said 1 circular base and 1 cuved that is a cone
OLEGan [10]
Yes this answer is correct
5 0
3 years ago
2y =17383 what is 2y please answer
aleksandrvk [35]
2y is 2y, so it is equal to 17383.
IF you were looking for just y, than the answer is 17383/2 = y = 8691.5
3 0
3 years ago
Read 2 more answers
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