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storchak [24]
3 years ago
9

Topic: Matrices, vectors

Mathematics
1 answer:
Svetllana [295]3 years ago
4 0

Answer:

Q4: 8; -2; Q5: {7;4;1}.

Step-by-step explanation:

for more details see the attached picture, the answers are marked with red and green colours.

Note, the suggested solutions are not the only way.

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Laurent invested some money in a bank account.
zavuch27 [327]

Answer:

1.04

Step-by-step explanation:

"Complete the following sentence about the yearly rate of change in the amount of money in the account.  Round your answer to two decimal places.

Every year, the amount of money in the account increases by a factor of _."

Mdecade(t) = 4900 (1.5)^t, where t is in decades.

One year is 0.1 decades, so M increases by a factor of:

1.5^0.1 = 1.04

4 0
3 years ago
a mine worker discovers an ore sample containing 500mg of radioactive material. it is discovered that the radioactive material h
scoundrel [369]

Answer:

The miner would have 3 1/2 of radioactive material in the sample at the beginning of the 7th day.

Step-by-step explanation:

hope this helped!

8 0
3 years ago
Read 2 more answers
4x^2−24x
DochEvi [55]

Answer:

See below.

Step-by-step explanation:

4x^2-24x

Find the GCF.

4 - 1, 2, 4

24 - 1, 2, 3, 4, 6, 8, 12, 24

The GCF of x^2 and x is x.

The complete GCF is 4x.

4x(x-6)

-hope it helps

4 0
2 years ago
What are the coordinates of the point that is one half the distance between A(−3, −5) and B(2, 7)?
Olenka [21]

Answer:

(\frac{-1}{2},1)

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>

  • Midpoint Formula: (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

Step-by-step explanation:

<u>Step 1: Define</u>

A (-3, -5)

B (2, 7)

<u>Step 2: Find midpoint</u>

  1. Substitute:                    (\frac{-3+2}{2},\frac{-5+7}{2})
  2. Add:                              (\frac{-1}{2},\frac{2}{2})
  3. Divide:                          (\frac{-1}{2},1)
3 0
3 years ago
Help please with 9 and 10 please !
Lana71 [14]

Answer:

9. The scale factor is 1.5.

10. scale factor = 0.75

    the missing side is 9m

Step-by-step explanation:

9. 3/2 = 1.5

   9/6 = 1.5

   6/4 = 1.5

10. 12/16 = 0.75

    12*0.75 = 9

3 0
3 years ago
Read 2 more answers
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