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4 years ago

There are three questions for this problem Please answer all three need help!!!

Mathematics

1 answer:

Vlad [161]4 years ago

8 0

Yes what’s your question

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Thank you in advance for your help!

Lelechka [254]

I appreciate it too , I had a major problem solving that one.

5 0

4 years ago

What are the solutions of x^2 - 2x + 10 = 0?

dybincka [34]

Answer:

C. x = 1 + 3i or x = 1 - 3i

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Standard Form: ax² + bx + c = 0
Quadratic Formula: $x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

Algebra II

Imaginary Roots: √-1 = i

Step-by-step explanation:

Step 1: Define

x² - 2x + 10 = 0

Step 2: Identify Variables

a = 1

b = -2

c = 10

Step 3: Find roots

Substitute [Quad Formula]: $x=\frac{2\pm\sqrt{(-2)^2-4(1)(10)} }{2(1)}$
Exponents: $x=\frac{2\pm\sqrt{4-4(1)(10)} }{2(1)}$
Multiply: $x=\frac{2\pm\sqrt{4-40} }{2}$
Subtract: $x=\frac{2\pm\sqrt{-36} }{2}$
Factor: $x=\frac{2\pm\sqrt{-1} \sqrt{36} }{2}$
Simplify: $x=\frac{2\pm6i }{2}$
Factor: $x=\frac{2(1\pm3i) }{2}$
Divide: $x=1\pm3i$

5 0

3 years ago

How many grams of water would require 4000 joules of heat to raise its temperature from

serious [3.7K]

Answer: 27.33 g water

Step-by-step explanation:

For this problem, we will need to use the equation for heat: q=mCΔT. Since we are given heat, change in temperature, and specific heat, all we have to do is plug them in to find grams.

4000J=m(4.181J/g°C)(100-65°C) [find change in temperature]

4000J=m(4.181J/g°C)(35°C) [divide both sides by specific heat and change in temperature]

m=27.33 g

7 0

3 years ago

Three equivalent ratios for each ratio. 18/6 ___ 5/45___ 3/5___

Nana76 [90]

9:3 3:1 6:2

1:9 2:18 4:36

6:10 12:20 24:40

7 0

3 years ago

Helpppp Plsssss Asap!! Show your work!! Thanks!!

Vera_Pavlovna [14]

Answer:

the answer is C

used graphing calculator

Hope This Helped! Have A Nice Day!!

8 0

3 years ago

Read 2 more answers