Matrices C and D are shown below.

2

1

0

a

b

-0.4

C= 0 3

4

D=0

-0.2

0.8

0

2

1

O

0.4

-0.6

What values of a and b will make the equation CD = I true?

a=0.5

b=0.1

O a=0.1

b=0.5

a=-0.5

b=-0.1

Submit

The people in their seventies according to the stem and leaf plot is b)6.

What is stem and leaf plot graph?

  A bar graph is a good analogy for a stem and leaf plot. Because every number in the data is divided into a stem and a leaf, the name stem and leaf was chosen. The number's entirety—all save the final digit—is contained in the stem. There will always be one digit in the number's leaf.

Here the given stem and leaf plot explain about the age of a people at a retirement seminar. Their ages are,

=> 55,56,56,59,60,62,63,63,63,64,67,68,71,71,75,76,76,77,82,82,83,92.

Here the ages above seventies are 71,71,75,76,76,77.

Hence there are 6 people were there were above seventies.

Therefore the correct option is b)6.

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Answer: if you dont show the picture i cant answer!

Step-by-step explanation:

Answer:

y= -10

Step-by-step explanation:

:)

Answer:

x=m+8

Step-by-step explanation:

bc mr CLEAN

For the initial fee, Bob charges less than Ginny.

A unit rate means a rate for one of something.

Given that Ginny charges by uses the function f(x)=60x+80 where x represents the number of hours of labour.

Ginny initial charge = $80

Bob initial charge =$60

Hence, For the initial fee, Bob charges less than Ginny.

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The given sequence is 2,6,10,16,...

To obtain an expression for the general expression for the nth term, we will use the formula:

Thus, the nth term is Tn= 4n - 2.

Figure J is rotated 90° clockwise and then translated by 3 units toward the right.

A point, line, or mathematical figure can be converted in one of four ways, and each has an effect on the object's structure and/or position.

Rotation does not change the shape and size of the geometry. But changes the orientation of the geometry.

The translation does not change the shape and size of the geometry. But changes the location.

Figure J is rotated 90° clockwise and then translated by 3 units toward the right.

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Answer:

its c

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

I think it's d because the end of the table is on 12 so its less and more than 12.

Answer:

Empty set

Step-by-step explanation:

The set containing no element in it is called​ an empty set.

One of the example of an empty set is as follows :

A = {x : x² = 4, x is odd}

In this case, if x = 2, then x² = (2)² = 4

There is no number other than 2 whose square is equal to 4.

Hence, this is an empty set.

Answer:

TRUE

Step-by-step explanation:

i just know it :>

Step-by-step explanation:

f(x) = 2x

g(x) = -8x + 2

h(x) = x² + x + 3

= f(g(6))

= 2x

= 2.(-8x + 2)

= 2.(-8.6 + 2)

= 2.(-48 + 2)

= 2.(-46)

= -92

= g(h(-4))

= -8x + 2

= -8.(x² + x + 3) + 2

= -8.((-4)² + (-4) + 3) + 2

= -8.(16 - 1) + 2

= -8.15 + 2

= -120 + 2

= -118

= g(f(x))

= -8x + 2

= -8.(2x) + 2

= -16x + 2

The line must be 5000 meters long, to have an area of one square meter

The question is an illustration of area

The area of a shape is the amount of space occupied by the shape.

From the question, we have the following parameters

\(Area =1m^2\)

\(Width = 0.2mm\)

Convert the unit from mm to m

\(Width = 0.2 \times 0.001 m\)

\(Width = 0.0002 m\)

The area is then calculated as:

\(Area =Length \times width\)

This gives

\(1=Length \times 0.0002\)

Divide both sides by 0.0002

\(Length = 5000\)

Hence, the line must be 5000 meters long

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Answer:

Rebekah, the height of a hemisphere is its radius. The volume of a sphere is 4/3 π r3. So the volume of a hemisphere is half of that: V = (2 / 3) π r3.

Answer:

V = (2 / 3) π r3.

Step-by-step explanation:

1/2 x 4/3 x π r3 = 2/3π r3

A set of numbers that can represent the side lengths, in centimeters, of a right triangle is any set that satisfies the Pythagorean theorem, where the square of the hypotenuse's length is equal to the sum of the squares of the other two sides.

A right triangle is a type of triangle that contains a 90-degree angle. According to the Pythagorean theorem, in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.

Let's consider a set of numbers that could represent the side lengths of a right triangle in centimeters.

One possible set could be 3 cm, 4 cm, and 5 cm.

To verify if this set forms a right triangle, we can apply the Pythagorean theorem.

Squaring the length of the shortest side, 3 cm, gives us 9. Squaring the length of the other side, 4 cm, gives us 16.

Adding these two values together gives us 25.

Finally, squaring the length of the hypotenuse, 5 cm, also gives us 25. Since both values are equal, this set of side lengths satisfies the Pythagorean theorem, and hence forms a right triangle.

It's worth mentioning that the set of side lengths forming a right triangle is not limited to just 3 cm, 4 cm, and 5 cm.

There are infinitely many such sets that can be generated by using different combinations of positive integers that satisfy the Pythagorean theorem.

These sets are known as Pythagorean triples.

Some other examples include 5 cm, 12 cm, and 13 cm, or 8 cm, 15 cm, and 17 cm.

In summary, a right triangle can have various sets of side lengths in centimeters, as long as they satisfy the Pythagorean theorem, where the square of the hypotenuse's length is equal to the sum of the squares of the other two sides.

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Answer: D. A polygon is concave if no diagonal contains points outside the polygon.

Explanation:

Choice A is true since "equiangular" means "equal angles"

Choice B is true since all sides are congruent, and all angles are congruent for a regular polygon

Choice C is true. The term "lateral" means "side".

Choice D is false because a convex polygon is one where all possible line segments contained in the polygon do not spill outside the polygon. Put another way, if points A and B are in a convex polygon, then every point on line segment AB is also in the polygon. Concave polygons don't have this feature. It is possible to draw a line segment where it spills outside the concave polygon.

Answer:

1/3

Step-by-step explanation:

(c) is correct option as it is forming an arithmetic sequence with a common difference of -2.

There are two definitions for an arithmetic sequence. It is a "series where the differences between every two succeeding terms are the same" or "each term in an arithmetic sequence is formed by adding a fixed number (positive, negative, or zero) to its preceding term." The following is an arithmetic sequence where each term is created by adding 4 to the one before it.

An arithmetic sequence's first term is 'a', its common difference is 'd', and n is the total number of terms. The AP has the following general forms: a, a+d, a+2d, a+3d, etc., up to n words.

(a) 1,2,3,5,7,9 is not an arithmetic sequence as 2-1=1 and 5-3=2. That shows common difference is not constant.

(b) 1,10,20,30 is not an arithmetic sequence as 10-1=9 and 20-10=10. That shows common difference is not constant.

(c) 1,-1,-3,-5 is an arithmetic sequence as (-1)-1=-2 and -3-(-1)=-2. That shows common difference is constant.

(d) 7,-7,7,-7 is not forming an arithmetic sequence because common difference is not constant.

Option (c) is correct option.

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Answer:

1st question : m C : 28

b : 7.06

c : 3.76

Answer:

(-3,-0.5)

Step-by-step explanation:

Answer:

your answer is -3, -0.5

Step-by-step explanation:

Answer:

50.5

Step-by-step explanation:

please mark brainliest

Answer:

B it originally cost 12000

Step-by-step explanation:

the depriciation factor is  0.75^t and the original value was 12000

Answer:

(2) The motorcycle cost $12,000 when purchased.

Step-by-step explanation:

\(V(t)=12000(0.75)^t\)

\(V(0)=12000(0.75)^0=12000\)

\(V(1)=12000(0.75)^1=9000\)

\(V(2)=12000(0.75)^2=6750\)

etc.

⇒ Initial cost = $12,000

⇒ The motorcycle's value is decreasing by 25% each year.

Therefore, P(K|J) is equal to 1/5 in its simplest form.

What is fraction?

A fraction is a mathematical expression that represents a part of a whole. It is written in the form of one integer (the numerator) divided by another integer (the denominator), separated by a horizontal line. For example, the fraction 2/5 represents two parts out of a total of five parts.

The numerator represents the number of parts we are interested in, while the denominator represents the total number of equal parts that make up the whole. Fractions can be proper (the numerator is less than the denominator), improper (the numerator is greater than or equal to the denominator), or mixed (a whole number and a fraction together). Fractions are used in a wide range of mathematical operations, such as addition, subtraction, multiplication, and division.

by the question.

We can use the formula P(B/A) = P(B∩A)/P(A) to calculate P(KJ), where A is the event that J occurs, and B is the event that K and J occur.

First, we need to find P(K|J∩N). We can use the formula P(JNK) = P(KJ∩N)/P(J) to find this value.

\(P(K|J∩N) = P(JNK) * P(J) = (1/5) * (3/7) = 3/35\)

Next, we need to find P(J) = 3/7.

Finally, we can use the formula P(K|J) = P(K|J∩N)/P(J) to find P(KJ):

\(P(K|J) = P(KJ∩N)/P(J) = (3/35) / (3/7) = (3/35) * (7/3) = 1/5\)

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The equation that represents the total number of black and white squares on the chess board is 8 * 2² = 32

From the question, we have the following parameters that can be used in our computation:

The chess board

From the chess board, we have

Black squares = 32

White squares = 32

When factorized, we have

Black squares = 32 = 8 * 2²

White squared = 32 = 8 * 2²

Hence, the equation that represents the squares on the chess board is 8 * 2² = 32

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Answer:

The other zeros are:

1 - 2i, 1 - √5

-8x+y

9-y

this is the answer because it is

Answer:

i dont know what you want but i will give you it to you in slope intercept form and the x and y intercept for both eqautions

Step-by-step explanation:

first equation:

y=2x+1

x intercept:(-1/2,0)

y intercept: (0,1)

second equation:

y=7x+1

x intercept:(-1/7,0)

y intercept: (0,1)

hope this helps pls mark brainliest this took me a long time to do :)

The amount Siya will spend on tiles is given by the expression (1.1 x T / 6) x R234, where T represents the required number of tiles. To calculate the amount Siya will spend on tiles, we need to determine the number of boxes of tiles he needs to purchase and then multiply it by the price per box.

First, we need to determine the number of tiles required. Let's assume the required number of tiles is represented by the variable "T."

Since the builder recommends buying 10% more tiles in case of breakages, Siya needs to purchase 110 percentage of the required number of tiles. This can be calculated as:

110% of T = 1.1 x T

Next, we need to convert the number of tiles into the number of boxes required. We know that one box contains 6 tiles, so the number of boxes Siya needs to purchase is:

Number of boxes = (1.1 x T) / 6

Finally, we can calculate the total cost by multiplying the number of boxes by the price per box:

Total cost = (1.1 x T / 6) x R234

Please note that without knowing the specific number of tiles required (T), we cannot provide an exact amount Siya will spend.

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Answer:16

Step-by-step explanation: If henry hits 80% of pitches, then the easiest way is to make 80% of 10, which is half of 20, is 8. So if it is 20 times he is up to bat, then 8*2, 2*8 is 16, so he hits the ball 16 times.