1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kogti [31]
3 years ago
7

3. HELPPP asaaaaaapppppp

Mathematics
1 answer:
mars1129 [50]2 years ago
3 0

Answer:

\left[\begin{array}{ccc}7\\4\\2\end{array}\right]

Step-by-step explanation:

To find the product of two matrices we need to multiply the elements of each row of the first matrix by the elements of each column in the second matrix. Then we should add the products. Then:

\left[\begin{array}{ccc}3&6&1\\2&4&0\\0&6&2\end{array}\right] \\ × \left[\begin{array}{ccc}2\\0\\1\end{array}\right] = \left[\begin{array}{ccc}3x2+6x0+1x1\\2x2+4x0+0x1\\0x2+6x0+2x1\end{array}\right]  = \left[\begin{array}{ccc}7\\4\\2\end{array}\right]

The term "x" refers to the multiplication sign.

Then, the solution is \left[\begin{array}{ccc}7\\4\\2\end{array}\right]

You might be interested in
Claire jogs 6 miles per hour and Megan jogs 5 miles per hour. they start together at their campsite and jog to an outpost 18 mil
horrorfan [7]

Answer:

16.364 miles

Step-by-step explanation:

Speed of Claire = 6 miles per hour

Speed of Megan= 5 miles per hour

Distance from camp site to out post = 18 miles

Time for Claire to travel=18/6= 3 hours

Time for Megan to travel = 18/5 = 3.6 hours

The time they meet will be equal

Claire distance= 18 + x

Megan distance = 18-x

Claire time =( 18+x)/6

Megan Tim =( 18-x)/5

(18+x)/6 =(18-x)/5

5(18+x)= 6(18-x)

90 +5x = 108-6x

11x=18

X=18/11

X=1.636 Miles

So the distance from the Outpost to where they meet = 18-1.636

= 16.364 miles

6 0
3 years ago
What is the measure of angle ABC in the circle shown in the picture?
Fynjy0 [20]

Answer:

45°

Step-by-step explanation:

I think you meant m<ACB, and from what I see here, I took half of 90°, which is 45°.

3 0
3 years ago
The weekly sales in thousands of items of a product has a seasonal sales record approximated by n=60.31+19.4sin(/24) (pi x t /24
Paladinen [302]
We are given with the equation
n = 60.31 + 19.4 sin (πt/24)
where n is the weekly sales in thousands of item
and t is the time in weeks

The week that will result to a sales of 70,010 is
70.01 = 60.31 + 19.4 sin (πt/24)
t = 4
weeks from the first week
8 0
3 years ago
Which of the following could be the equation of the function below?
rodikova [14]

Answer:

y = 0.5 cosine (4 (x - pi/2)) - 2

Step-by-step explanation:

Taking the general form:

y = A cosine (Bx - Cπ)) + D

In the following case. the constants are:

y = 0.5 cosine (4x - 2π)) - 2

A: 0.5

B: 4

C: 2π

D: -2

The range of this function is:

range = [-|A|+D, |A|+D]

range = [-0.5-2, 0.5-2]

range = [-2.5, -1.5]

Which coincides with "It has a maximum at negative 1.5 and a minimum at negative 2.5"

At x = 0, the function value is:

y = 0.5 cosine (4(0) - 2π)) - 2

y = 0.5 - 2 = -1.5

As indicated in "a curve crosses the y-axis at y = negative 1.5"

The period of the function is:

period: 2π/B

period = 2π/4 = π/2 or 2 cycles at π

as described in "It goes through 2 cycles at pi."

8 0
3 years ago
Read 2 more answers
7 times a number is 8 less than the square of that number. Find the negative solution.
kap26 [50]

Answer:

Step-by-step explanation:

x^2-8x+x-8

x(x-8)+1(x-8)

(x+1)(x-8)

The negative number is x=-1

8 0
2 years ago
Other questions:
  • How many days in the month of february??
    15·1 answer
  • Factorise 5x-10 please help
    15·1 answer
  • 90 percent as a fraction in simplest form
    6·1 answer
  • A pelican dives straight down from 50.7 feet above the ocean and catches a fish 5.6 feet under the water. What is the total dist
    5·1 answer
  • HELP PLEASE and help me understand
    5·1 answer
  • Solve. <br> x/5 + 3 = 2<br> A) -5 <br> B) 25 <br> C) 5 <br> D) -<br> 1<br> 5
    15·1 answer
  • What is the % of 7/10
    13·2 answers
  • Which statements about the graph of the function f(x) = –x2 – 4x + 2 are true? Check all that apply.
    7·2 answers
  • What is 44,000,000 ft equal to in yards
    12·1 answer
  • adam bought abox of fruit that weighed 6 3/8 kilograms if he bought a second box that weighed 7 2/5 kilograms ,what is the combi
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!