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Rashid [163]
2 years ago
6

Find the determinant of this matrix:

Mathematics
2 answers:
Bogdan [553]2 years ago
4 0

Answer:

40

Step-by-step explanation:

\left[\begin{array}{ccc}a&b\\c&d\end{array}\right] = ad-bc

padilas [110]2 years ago
3 0

Answer:

40

Step-by-step explanation:

ad-bc

4(10) - 0(0)

40-0

40

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What is the line of symmetry for the parabola whose equation is y = -x2 + x + 3?
iVinArrow [24]
Alright so if I do remember my math correctly, this is how it goes:

- y = -x^2 + x + 3

- x = -b/2a

- x = -1/2(-1)

- x = -1/-2, which = (1/2)

Not quite sure if this was correct, but if it was, hope this helps and you're welcome! :)
5 0
3 years ago
Read 2 more answers
While looking at some reports, a store manager notes that televisions that retail for $475 and up costing customers $513 once th
Mekhanik [1.2K]

The sales tax percentage of the store manager report is 7.41%

<h3>How to solve for the sales tax percentage</h3>

Customers are subject to a charge known as sales tax when they buy goods and services.

It is a pass-through tax, which means you must collect it from clients and send the money to your state or local government. the seller do not contribute sales tax.

The sales tax is first calculated by

= price after tax - price before tax

= 513 - 475

= 38

sales tax percentage is calculated using the formula

= (Tax amount / Price before tax) × 100%

= (38 / 513) * 100

= 7.4074

= 7.41%

Learn more about sales tax at:

brainly.com/question/20220356

#SPJ1

3 0
1 year ago
Misha bought 9 new baseball trading cards to add to her collection. The next day
swat32
She started with 81 baseball cards.
7 0
3 years ago
Whats the answer for number 11?
viva [34]

Answer:

Option 4

Step-by-step explanation:

y = -5x + 2

-8 = -5(2) + 2

-8 = -10 + 2

Correct! :)

4 0
3 years ago
In addition to the facts in the diagram which statements is necessary to prove that the two triangles are congruent by the SAS c
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The angles should be included between the equal sides
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