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arsen [322]
3 years ago
9

Help!!! √−100 = __ + __ i

Mathematics
1 answer:
Naily [24]3 years ago
4 0

Answer:

-10i

10i

Step-by-step explanation:

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Please answer for a brainliest
HACTEHA [7]

Answer:

x = 5

y =  - 5

Step-by-step explanation:

Look at the second equation.

Add 6y to both sides:

- 6x = 6y

Hence,

y =  - x

Substitute this into first equation:

- 4x - x =  - 25

- 5x =  - 25

x = 5

Since y = -x,

y =  - 5

8 0
3 years ago
What us the unit price of 32 ounces of yogurt that cost 4.79$
nadezda [96]
Do you mean the cost per ounce? 
Then that would be $0.1496, or rounded to the nearest cent, 15 cents a ounce.
5 0
4 years ago
Find the value of x. Round to<br> the nearest tenth.
denpristay [2]

Answer:

\displaystyle x \approx 38.2 ^{\circ}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

<u>Pre-Calculus</u>

Law of Sines: \displaystyle \frac{sin(A)}{a} =\frac{sin(B)}{b} =\frac{sin(C)}{c}

  • A, B, C are angle measures
  • a, b, c are leg lengths

Step-by-step explanation:

<u>Step 1: Identify</u>

A = 27°, a = 11

B = x°, b = 15

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute [LOS]:                     \displaystyle \frac{sin(27^{\circ})}{11} =\frac{sin(x^{\circ})}{15}
  2. Cross-multiply:                        \displaystyle 11sin(x^{\circ}) = 15sin(27^{\circ})
  3. Isolate <em>x</em> term:                         \displaystyle sin(x^{\circ}) = \frac{15sin(27^{\circ})}{11}
  4. Isolate <em>x</em>:                                  \displaystyle x = sin^{-1}(\frac{15sin(27)}{11})
  5. Evaluate:                                 \displaystyle x = 38.2488 ^{\circ}
  6. Round:                                    \displaystyle x \approx 38.2 ^{\circ}
7 0
3 years ago
Simplify: 7.2 x10^4/3.0 x 10^2
Jobisdone [24]

Answer:

240

Step-by-step explanation:

4 0
3 years ago
Solve the system of linear equations by elimination.<br><br> 2x+5y=16<br> 3x−5y=−1
andrew11 [14]

Hope you can read my handwriting XD You can see the rest when you open the picture.

5 0
3 years ago
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