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wolverine [178]
3 years ago
13

Pls helpwill give the brainliest!Need explanationUrgent​

Mathematics
2 answers:
12345 [234]3 years ago
8 0

Answer:

hope it helps

plz mark brainliest

julsineya [31]3 years ago
8 0

Answer:

a=\pm 4

Step-by-step explanation:

M^2= \begin{bmatrix} a^2 +1 & 0 \\ 0 & a^2+1 \end{bmatrix} =17  \begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix}\\

Equate the terms to get:

$a^2+1=17$

$\implies a^2=16 \implies a= \pm 4$

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Step-by-step explanation:

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$41.50

Case 2—Two workers: K = 3, pl= 7L= r= = 0.75 machine1 p. -A 7 - 3Downtime (0.75 X $25) = S J 8.75Labor (2 workers X S4.00) = 8.00S26.75Case III—Three workers:A= 3, p= 8L= ——r = 5- ^= § = 0.60 machinepi -A 8 - 3 5Downtime (0.60 X $25) = $15.00 Labor (3 workers X $4) = 12.00 $27.00

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Answer:

57

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

Step-by-step explanation:

<u>Step 1: Define</u>

n² - m

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<u>Step 2: Evaluate</u>

  1. Substitute:                    8² - 7
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