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Tomtit [17]
3 years ago
13

What is the value of x + 3y + z if x = 4, y = 5, and z=2?​

Mathematics
2 answers:
Alexus [3.1K]3 years ago
8 0

Answer:

x+3y+z=21

Step-by-step explanation:

x+3y+z

4+3(5)+2

4+15+2

21

lord [1]3 years ago
4 0
Plug in the number for each answer: 4+3(5)+2. Final answer: 21
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Which relationships could have a negative correlation? Check all that apply. number of hours on video games and test scores spee
dexar [7]
<span>The following choices may have a negative correlation: - speed of a car and minimum stopping distance - average running speed and total race time - outside temperature and amount of a heating bill
<span>Theses factors may yield negative results depending on the variables that will be present in a controlled experiment.</span></span>
4 0
3 years ago
Solve the proportion for k<br> k+7 = 4k+15<br> 29= 21
mafiozo [28]

Answer:

k+7

k-7

or k+7/k-7

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Check answer please
Cerrena [4.2K]
The fourth or the D) Option is correct.

To find the new induced matrix via a scalar quantified multiplication we have to multiply the scalar quantity with each element surrounded and provided in a composed (In this case) 3×3 or three times three matrix comprising 3 columns and 3 rows for each element which is having a valued numerical in each and every position.

Multiply the scalar quantity with each element with respect to its row and column positioning that is,

Row × Column. So;

(1 × 1) × 7, (2 × 1) × 7, (3 × 1) × 7, (1 × 2) × 7, (2 × 2) × 7, (3 × 2) × 7, (1 × 3) × 7, (2 × 3) × 7 and (3 × 3) × 7. This will provide the final answer, that is, the D) Option.

To interpret and make it more interesting in LaTeX form. Here is the solution with LaTeX induced matrix.

\mathcal{A = \begin{bmatrix}1 & 0 & 3 \\ 2 & -1 & 2 \\ 0 & 2 & 1 \\ \end{bmatrix}}

\mathbf{\therefore \quad 7A = 7 \times \begin{bmatrix}1 & 0 & 3 \\ 2 & - 1 & 2 \\ 0 & 2 & 1 \\ \end{bmatrix}}

\mathbf{\therefore \quad \begin{bmatrix}7 \times 1 & 7 \times 0 & 7 \times 3 \\ 7 \times 2 & 7 \times -1 & 7 \times 2 \\ 7 \times 0 & 7 \times 2 & 7 \times 1 \\ \end{bmatrix}}

\therefore \quad \begin{\bmatrix}7 & 14 & 0 \\ 0 & -7 & 14 \\ 21 & 14 & 7 \end{bmatrix}

Hope it helps.
5 0
3 years ago
Lakita wants to go to trade school and study electronics for a two-year program. Her tuition and books will cost about $5,500 pe
tamaranim1 [39]

Answer:

$13,400

Step-by-step explanation:

<u>Given the following data;</u>

Tuition and book per year = $5,500

Transportation per month = $100

<u>In 2 years;</u>

Total tuition and book = $5,500 * 2 = $11,000

Total tuition and book cost = $11,000

Transportation;

There are 12 months in a year, in 2 years = 12 * 2 = 24 months.

Thus, total on transportation = $100 * 24 = $2,400

Total transportation cost = $2,400

Overall \; cost = Total \; tuition \; and \; book \; cost + Total \; transportation \; cost

Substituting into the above equation, we have;

Overall cost = $11,000 + $2,400

Overall cost = $13,400.

<em>Hence, Lakita's education will cost her $13,400 in total.</em>

6 0
2 years ago
Arianna runs up 4 flights of stairs and then runs down 4 flights of stairs.
Cloud [144]

Answer:

Yes this represents additive inverse,

Step-by-step explanation:

Since you are subtracting the same number 4 to get to zero.

5 0
3 years ago
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