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
kupik [55]
2 years ago
13

Please help! Fill in the missing number.

Mathematics
1 answer:
liq [111]2 years ago
3 0

Answer:

21

Step-by-step explanation:

\left[\begin{array}{cc}5&9\\-6&9\end{array}\right] +6\left[\begin{array}{cc}-5&2\\7&8\end{array}\right]

Multiply the second matrix by 6.

\left[\begin{array}{cc}5&9\\-6&9\end{array}\right] +\left[\begin{array}{cc}-30&12\\42&48\end{array}\right]

Add the corresponding cells in each matrix.

\left[\begin{array}{cc}5-30&9+12\\-6+42&9+48\end{array}\right]

\left[\begin{array}{cc}-25&21\\36&57\end{array}\right]

You might be interested in
What is the constant of proportionality of
ehidna [41]

Answer:

I couldn’t add all my solotions but u can make another question so I can give it to u

Step-by-step explanation:

But this are just the graph tell me if u need solutions

3 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST!!!
Reika [66]

Answer:

Because the airline allows each suitcase to hold up to 50 pounds, and it doesn't force them to hold exactly 50 pounds

8 0
3 years ago
Read 2 more answers
Find the volume of the cylinder when it is 70% full. Use 3.14 for PI and round to the whole number. height 13 radius 7
artcher [175]

Answer:

= 2001.19452

Step-by-step explanation:

V=πr2h=π·72·13≈2001.19452

3 0
2 years ago
Carl saved $22 in the last 3 weeks.<br> About how much will he save after 20<br> weeks?
olga_2 [115]

22 / 3 = 7.3333

7.3333 * 20 = 146.67

$146.67

5 0
3 years ago
Line A is represented by the equation given below:
MrMuchimi
To have infinitely many solutions they must describe the same line.  So any multiple or fraction of the reference line would indeed describe the same line, and thus "intersect" at each and every of an infinite number of points.

2(x+y=4)

2x+2y=8  (is the same line as x+y=4)
4 0
3 years ago
Read 2 more answers
Other questions:
  • What are the factors of the expression (y-2)(x+3)?
    12·2 answers
  • How many square yards are contained in a rectangle 12 yards long and 8 yards wide​
    8·2 answers
  • 2a + 5a x 4a - a simplify
    5·1 answer
  • what is the minimum force required to prevent a ball weighing 24 lb from folling down a ramp which is inclined 27.2 degrees with
    13·1 answer
  • What is 15 percent of 100?
    15·2 answers
  • the isoceles triangle has a base that measures 14 units.the value of y, the length of each leg, must be
    15·1 answer
  • How many triangles are there help please
    10·2 answers
  • Suppose that 29\%29%29, percent of undergraduates at a large university are involved in a campus organization. The administratio
    5·1 answer
  • Which statement is not true about the data set shown? 66, 89, 90, 55, 92, 82 A.) The median ia 82 B.) The mean is 79 C.) The ran
    15·1 answer
  • 3 siblings reported how long they worked out at the gym. Write the names of the siblings from shortest to longest time.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!