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dezoksy [38]
3 years ago
6

What is the length of side d?

Mathematics
1 answer:
inessss [21]3 years ago
8 0
Answer: A

Explanation:

Use formula a^2 + b^2 = c^2 but in this case letter “d” will substitute for “b”

Since 13 is hypotenuse, 13 is going to be the letter c

12 is “a” because we don’t know “d”

So it’s 12^2 + d^2 = 13^2

Simplify: 144 + d^2 = 169

Subtract to isolate d^2: d^2 = 25

Take square root from both sides to isolate d: d = 5

Answer: A
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B/5&gt;-1<br> Solve the inequality. Graph and check the solution.
Usimov [2.4K]

Answer:

b>-5

Step-by-step explanation:

\frac{b}{5}   >  - 1

Multiply by 5 to isolate b.

b  >  - 5

If you graph this on a line, it would be a hollow point facing the right, since it's any number greater than five, not including 5.

If you put any number greater than -5, you'll output greater than - 1.

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Find the error<br> 3(x+2) + 3x = 36<br> 3x + 6 + 3x = 36<br> 6x + 6 = 36<br> 6x = 42<br> x = 7
rusak2 [61]
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Solve the inequality for x.<br> Ex 1/2x - 2 &gt; 22
Tanya [424]

Answer:

x > 48

Step-by-step explanation:

Given

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3 years ago
H(x)= -x^3-2x^2-3x+4; x=2
murzikaleks [220]

Answer:

h(2) = -18

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

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

h(x) = -x³ - 2x² - 3x + 4

x = 2

<u>Step 2: Evaluate</u>

  1. Substitute:                    h(2) = -(2)³ - 2(2)² - 3(2) + 4
  2. Exponents:                   h(2) = -8 - 2(4) - 3(2) + 4
  3. Multiply:                        h(2) = -8 - 8 - 6 + 4
  4. Subtract:                       h(2) = -16 - 6 + 4
  5. Subtract:                       h(2) = -22 + 4
  6. Add:                              h(2) = -18
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3 years ago
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