If Matrix A is 3 x 4, and Matrix B is 4 x 2, what is the size of matrix BA? If BA is undefined, please state so.

Answers

Answer 1

Answer:

Joe Mok

Step-by-step explanation:

Joe MAMA


Related Questions

work out the value of angle x, 90 degrees​

Answers

Answer:

x = 45

Step-by-step explanation:

In isosceles triangles (a triangle where two sides are equal), the two base angles are congruent.

The sum of angles in a triangle is 180°.

In this problem, x is a base angle, so the other base angle is equal to x.

So, adding up all the measures of the angles in this triangle,

90 + x + x = 180

Simplify.

2x + 90 = 180

Substract 90 from both sides

2x = 90

Divide both sides by 2

x = 45

From the number is 12345 what is the probability of Choosing an even number at random

Answers

Answer:

4

Step-by-step explanation:

Answer:

2/5 OR 40%

Step-by-step explanation:

There are 2 even numbers - 2 & 4.

3 odd numbers - 1, 3, & 5.

5 numbers total.

2 / 5 = 40 %

Hope that helps! :)

Anne can make 6 headbands from meters of cloth. Which expression shows the amount of cloth needed to make 1 headband? What is the solution to the expression?
The expression that shows the amount of cloth needed to make 1 headband is
. The solution to the expression is
meters.

Answers

You missed a number how many meters of cloth

Answer:

(3/5) × 6  

1/10

Step-by-step explanation:

What is 12 divided by 3/5

Answers

Answer:

20

Step-by-step explanation:

12 / 3/5

12 / 0.6

20

Answer:

12 divided by 3/5 = 20

A cylinder and a cone have the same height and radius. The height of each is 5 centimeters, and the radius is 2 centimeters. Calculate the volume of the cylinder and the cone (rounded to the nearest tenth). Use 3.14 as an approximation for n. PLS HELP 15 POINTS

Answers

Answer:

Step-by-step explanation:

volume of cylinder = πr²h = 3.14·2²·5 = 62.8 cm³

volume of cone = ⅓πr²h = ⅓·62.8 ≅ 20.9 cm³

The volume of the cone is 10.5 cm³. The volume of the cylinder is 31.4 cm³

What is the volume of the cylinder and the cone?

Volume of a cone = 1/3(nr^2h)

n = 22/7

r = radius

h = height

1/3 x 3.14 x 5 x 2 = 10.5 cm³

Volume of the cylinder = nr^2h

3.14 x 5 x 2 = 31.4 cm

To learn more about the volume of a cone, please check: https://brainly.com/question/13705125

PLEASE HELP ME I WILL GIVE BRAINLIEST

DONT STEAL POINTS PLEASE

Answers

The range would be 8!

Explanation:
The lowest number of the set is 12.
The highest number of the set is 20.

Subtract both to get the range.

20 - 12 = 8

or

20
-12
——
8

The range is 8 or C.

A, B, C, OR D. WILL MARK ANSWER BRAINLIEST.

Answers

Answer:

C

Step-by-step explanation:

all points on the line of the equation y = 1 will have the number 1 as the y-value in each ordered pair

y = 1 is a horizontal line which intersects the y-axis at (0, 1)

C. Bc it goes through 1

Fred climbed to the top of a cliff 35 feet above sea level. he then dove into the ocean, traveling a total of 42 feet from the top of the cliff. What is Fred's location after the dive?

Answers

Answer:

i really dont know sorry lil buddy

Step-by-step explanation

find a fuction rule for the line that passes through the origin (0,0) and the point (3- 18)

Answers

Answer:

just carrie the 2 and box up rh2-4 then you would get the answer I'm smart as f

The difference of b and 4 is at most 15.

Answers

Answer:

b - 4 ≤ 15

b ≤ 19

Step-by-step explanation:

The statement "at most" typically means no more than, so the inequality sign would have to be "less than or equal to"

To solve for be all you would do is add 4 to both sides to get b by itself.

b - 4 ≤ 15

b - 4 + 4 ≤ 15 + 4

(-4 + 4 cancels itself out)

(15 + 4 = 19)

b ≤ 19

The answers please. Don’t know how to do #1

Answers

Your correct. It is what you put down

Patrick randomly selects a marble from a bag , records the color and then returns the marble to the bag . After 40 trials , he has recorded 14 red marbles 12 blue marbles yellow marbles and 4 green marbles Which of the following experimental probabilities is correct based on his record ?

Answers

Answer: A

Step-by-step explanation:

solve using substitution
x^2 -4x+20=0

Answers

Answer:

Step-by-step explanation:

x^2 - 4x + 20 = 0

x^2 - 4x = -20

x^2 = 4x - 20

x = 2x - 4.47

-3x = -4.47

x = roughly 1.5

120

If segment AC is a diameter of the circle what can you conclude about triangle ABC?
A)
It is right
B)
It is obtuse
It is scalene
D)
It is isosceles

Answers

Answer:

The triangle has an angle of 90º.

what is y=3x and y=2x+2 solution ??
( , )



PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.

Answers

Answer:

Try this: (2,6)

x=2, y=6

Step-by-step explanation:

Answer:

i belive it is (-2,-6)

Please help if not I with find you

Answers

Answer:

7,7,15

Step-by-step explanation:

Because the summation of two sides should be greater than the other one

(1 point)
Only answer if you know!!! Meg was deep-sea diving at 15 feet below sea level. She dove another 7 feet below sea level. How far
below sea level was Meg?
O 8 ft below sea level
O 12 ft below sea level
O 22 ft below sea level

Answers

22 ft below sea level

Answer:

22 feet below sea level

Step-by-step explanation:

she kept going down, basically in a negative way. adding to the already below sea level


Need help with this

Answers

oh wow that’s a lot that’s crazy

The volume of a cube is 125cm3.
If the cube were ice blocks, how many cubes would you need make 1KL of ice?

Answers

Answer:

8000 cubes

Step-by-step explanation:

Given that 1KL is 1 Kilo liters

Then conversion of 1KL to cm³ => 1,000,000 cm³

Therefore, since we have a cube to be 125 cm³

Hence, to find the number of cubes of ice blocks that would make 1KL

We divide 1,000,000 cm³ from 125 cm³

=> 1,000,000 ÷ 125

=> 8,000

Therefore, the correct answer is 8,000 cubes


Write the sentence as a proportion: 4 wins in 7 games is the same as 116 wins in 203 games.

Answers

Answer:

4/7=116/203

Step-by-step explanation:

Quadrilateral ABCD is a parallelogram. What is BC?

Answers

Answer:

BC = 36 ≅ (AQ+QD)

Step-by-step explanation:

1. Identify potential angles

∠Q≅90˚ so ∠B = 60˚ + 60˚ and ∠C = 30˚+30˚

2. Two isosoceles triangle

18=AB=AQ

18=CD=DQ

3. BC = AQ+QD

BC = 18+18

BC = 36

Which of the following equations has a graph in the
xy-plane for which y is always greater than or equal
to -1 ?
A) y = |x| - 2
B) y = x2 - 2
C) y = (x - 2)2
D) y = x3 - 2

Answers

Answer: (x-2)2

Step-by-step explanation:

The required equation is  [tex]y=(x-2)^2[/tex]

The correct answer is an option (C)

What is an equation?

"It is a mathematical statement which consists of equal symbol between two algebraic expressions."

For given question,

We have been given four equations.

We need to find an equation for which y is always greater than or equal

to -1.

Consider,

A. y = ∣x∣ - 2

We know that the minimum value of ∣x∣ is 0.

So, the minimum value of y becomes -2

Hence, this is not a required equation.

B. [tex]y=x^{2} -2[/tex]

We know that the square of any number is always positive.

The minimum value of [tex]x^{2}[/tex] is 0.

So, the minimum value of y becomes −2

Hence, this is not a required equation.

C. [tex]y=(x-2)^2[/tex]

We know that the square of any number is always positive.

The minimum value of y is zero.

This means, the y value of equation  [tex]y=(x-2)^2[/tex] is always greater than -1.

D. [tex]y=x^3-2[/tex]

We know that [tex]x^3[/tex] can go have negative values. This means it may have value that tends to negative infinity.

This means, the y can be less than -1 and this is not a required equation.

Therefore, the required equation is  [tex]y=(x-2)^2[/tex]

The correct answer is an option (C)

Learn more about the equation here:

https://brainly.com/question/13170101

#SPJ2

work out the size of angle x​

Answers

Answer:

∠x = 117°

Step-by-step explanation:

supplement of ∠101° = 79°

all triangle interior angles add up to 180°

180° - 79° - 38° = 63°

the supplementary angle to 63° is 117°

4. An equilateral triangle has a perimeter of 60 cm. Find the exact
altitude of the triangle.

Answers

Step-by-step explanation:

GIVEN:-

The Perimeter of Equilateral triangle = 60cm

UNDERSTANDING THE CONCEPT:-

According to the question,

To find the height of the triangle,

Perimeter of Equilateral triangle = Area of Equilateral triangle.

FORMULA USED:-

[tex]60 = \frac{ \sqrt{3} }{4} a {}^{2} \\ [/tex]

REQUIRED ANSWER:-

[tex]60 \times 4 = \sqrt{3a {}^{2} } [/tex]

[tex]a {}^{2} = 240 \sqrt{3} \\ [/tex]

[tex]a = 120 \sqrt{3} cm[/tex]

SO, The Exact height of the triangle is 120√3cm.

Hey guys, question in the image below; will mark brainliest :)

Answers

Answer:

for x = 0, y = 0

for x = 1, y = 6

for x = 2, y = 12

for x = 3, y = 18

Step-by-step explanation:

y = 6x, the general equation is given, what you need to do is simply substitute the corresponding value of X into the equation.

for x = 0, y = 0

for x = 1, y = 6

for x = 2, y = 12

for x = 3, y = 18

Answer:

Step-by-step explanation:

x=0, y=0

x=1, y=6

x=2, y=12

x=3, y=18

Just multiply

What is the horizontal asymptote of the function g(x)= 3(0.8)^x +6

Answers

Y = tan (x)
Y = 3x0.8x + 6
(0,0) (0,9)

Use the quadratic formula to find the solution to the quadratic equation given below. x^2-3x+9/4 =0​

Answers

Answer:

[tex] x = \dfrac{3}{2} [/tex]

Step-by-step explanation:

x^2-3x+9/4 =0​

Multiply both sides by 4 to get rid of the fraction.

4x^2 - 12x + 9 = 0

[tex] x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a} [/tex]

[tex] x = \dfrac{-(-12) \pm \sqrt{(-12)^2 - 4(4)(9)}}{2(4)} [/tex]

[tex] x = \dfrac{12 \pm \sqrt{144 - 144}}{8} [/tex]

[tex] x = \dfrac{12}{8} [/tex]

[tex] x = \dfrac{3}{2} [/tex]

Elroy enjoys roller skating and weight training. Let X represent the number of hours he spends roller skating weekly,
and let y represent the number of hours he spends weight training weekly. The mean of X is 5 hours, and the mean
of Y is 7 hours. Which answer choice correctly calculates and interprets the mean of the sum, S = X + Y?

Answers

Answer:

[tex]\mathbf{\mu_S = 12 }[/tex]; [tex]\text{Elroy can expect to roller skate and weight train, on average, 12 }[/tex][tex]\text{hours in a typical week.}[/tex]

Step-by-step explanation:

Given that:

The mean [tex]\mu_X = 5[/tex]

The mean [tex]\mu_Y = 7[/tex]

Where;

[tex]S= X+ Y[/tex]

[tex]\mu_S = \mu _X + \mu_Y \\ \\ \mu_S = 5+7 \\ \\ \mu_S = 12[/tex]

Thus;

[tex]\mathbf{\mu_S = 12 }[/tex];[tex]\text{ Elroy can expect to roller skate and weight train, on average, 12 }[/tex][tex]\text{hours in a typical week.}[/tex]

Answer:

C ♡♡

Step-by-step explanation:

jus took the quiz !!!

Chin noticed 1/4 of the watches he bought needed repairs. He also noticed that 1/2 of the good watches had gold bands. If 48 of the good watches had gold bands how many watches did chin buy.

Answers

so 48 have gold and 48 is half of the good watches then there is 96 good watches and that's 3/4 of all the watches so the answer would be

128 watches in total

PLEASE PLEASE HELP!!

Answers

Answer:

m <1 = 64

m<2= 26

Step-by-step explanation:

the angle is 90 degree

therefore, <1 + <2 = 90

(x+51) + (2x) = 90

3x +51 = 90

3x = 39

x = 13

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