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
tino4ka555 [31]
3 years ago
10

B [2 0] -2 5 What is the determinant of B? Your answer

Mathematics
1 answer:
Marianna [84]3 years ago
8 0

Answer:

10

Step-by-step explanation:

Determinant = ad - bc

\det\begin{pmatrix} 2 & 0 \\-2 & 5\end{pmatrix} =\begin{vmatrix} 2 & 0 \\-2 & 5\end{vmatrix} = 2\times5 + 0\times2 = 10

You might be interested in
when you start from a given set of rules and conditions and determine what must be true, you are using ____ reasoning.
8_murik_8 [283]
According to the statement, I think it is using deductive reasoning. Deductive reasoning uses facts,rules,definitions, or properties to reach logical conclusions from given statements.
5 0
2 years ago
Read 2 more answers
0=(1x+1)(1x-3) if m(x) =10, find the value of x
Anna11 [10]

Answer:

x=1+sqrt(14) & 1-sqrt(14).

Step-by-step explanation:

(1x+1)(1x-3)=0

(x+1)(x-3)=0

m(x)=(x+1)(x-3)=10

(x+1)(x-3)=10

x^2+x-3x-3=10

x^2-2x-3=10

x^2-2x-3-10=0

x^2-2x-13=0

Apply the quadratic formula with a=1, b=-2 and c=-13.

The answer is x=1+sqrt(14) & 1-sqrt(14).

6 0
3 years ago
Place a check mark next to each equivalent expression
anygoal [31]
If you simplify the expression, you will get A, E and D
8 0
3 years ago
Anna put $2 500 in a bank and left it for two years. At the end of the 2 years, she realized that she had $2.700 in her
user100 [1]

Answer:

$ 100 a year

Step-by-step explanation:

4 0
3 years ago
ABCD is a rectangle. The measure of angle BCE is 4x-23 and the angle measure of angle DCE is 5+5x. Find the measure of angle BEC
Temka [501]
<h2>Explanation:</h2><h2></h2>

The diagram for this problem is shown below. Point E is the intersection of the two diagonals and we know that:

\angle BCE=\beta \\ \\ \angle DCE=\theta

Every internal angle of any rectangle measures 90 degrees, so:

\beta +\alpha=90 \\ \\ (4x-23)+(5+5x)=90 \\ \\ \\ Isolating \ x: \\ \\ (4x+5x)+(5-23)=90 \\ \\ 9x-18=90 \\ \\ 9x=108 \\ \\ x=\frac{108}{9}=12

So:

\beta=4x-23=4(12)-23=25^{\circ}

So the measure of angle BEC can be found as follows:

We know that triangle ΔCEB is an isosceles triangle because the diagonals of any rectangle measure the same. So

\angle EBC=\beta

The sum of internal angles of any triangle add up to 180 degrees, so:

\beta + \beta+\angle BEC=180^{\circ} \\ \\ 2\beta+\angle BEC=180^{\circ} \\ \\ \angle BEC=180^{\circ}-2\beta \\ \\ \angle BEC=180^{\circ}-2(25^{\circ}) \\ \\ \angle BEC=180^{\circ}-50^{\circ} \\ \\ \boxed{\angle BEC=130^{\circ}}}

7 0
3 years ago
Other questions:
  • YW bisects &lt;XYZ. m&lt;XYW=(2x+7) and m&lt;XYZ= (6x-8). find the value of the X and the measure of &lt;XYZ
    10·1 answer
  • Big ideas math segments lesson 1.2<br> 12, 14,16,18
    15·2 answers
  • Find the solution of this system of equations -2x+3y=-3 and -2x-5y=-75
    14·1 answer
  • The sides of a triangle have lengths s, s+4, and 3s. write an expression in simplest form that represents the perimeter of the t
    12·1 answer
  • Determine whether the origin is included in the shaded region and whether the shaded region is above or below the line for the g
    6·2 answers
  • What is the value of r?
    14·2 answers
  • Hallllllpppppp now
    7·1 answer
  • Simply the expression by combining like terms.<br> 9x + 8 + 3x +4=
    15·2 answers
  • Which expression is equivalent to -3x(x-4)-2x(x+3)?
    11·2 answers
  • The table represents a bicycle rental cost in dollars as a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!