I can figure out the steps -X=35

When we do Matrix multiplication, we keep these two conditions in mind: 1 The number of columns of the first matrix in the multiplication process must equal the number of rows of the second.

here  number of columns of 1st matrix is not equal to number of rows of 2nd matrix.

To multiply two matrices, we must first determine if the first matrix's number of columns and rows equals the second matrix's number of rows. Then sum all of the results after multiplying each element of the first matrix's column by each element of the second matrix's row.

In dealing with many ideas in linear algebra, matrices are crucial. In mathematics, a matrix is a rectangular array or table with rows and columns of integers, symbols, or expressions. Matrix operations include addition, subtraction, multiplication, and other operations.

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Answer:

18,000

Step-by-step explanation:

Answer:

z=13/2

Step-by-step explanation:

Answer:

z = 6.5

Step-by-step explanation:

3z + 2 = z + 15

      -2        -2

      3z = z + 13

       -z   -z

      2z = 13

           2

         z = 6.5

The total weight of two animals in scientific notation is 1.3 x 10⁴ lbs.

Scientific Notation:

A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10.

For example,

650,000,000 can be written in scientific notation as 6.5 ✕ 10⁸.

Given,

The approximate weights of two animals are 4.23 x 10³ lbs. and 8.7 x 10³ lbs.

Here we need to find the total weight of the two animals and we need to write the final answer in scientific notation with the correct number of significant digits.

The total weight of the two animals is calculated as

Total weight = Animal 1 + Animal 2

So,

Total weight = 4.23 x 10³ lbs + 8.7 x 10³ lbs.

Take 10³ lbs as the common term,

Then we get,

Total weight = (4.23 + 8.7) x 10³ lbs.

Total weight = 12.93 x 10³ lbs.

It can we rewritten as,

Total weight = 1.293 x 10⁴ lbs.

When we round off it, then we get,

Total weight = 1.3 x 10⁴ lbs.

Hence, the total weight of the two animals is 1.3 x 10⁴ lbs.

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Answer:

80% son perros,

Step-by-step explanation:

Se considera que el total corresponde al 100%

Por tanto:

100% - 20% = 80%

Answer:

3.92a + 1.1

Step-by-step explanation:

remove the parentheses

1.17 - 0.07 + 3.92a

subtract

1.17 - 0.07 = 1.1

= 3.92a + 1.1

Answer: 4.5 x 1012 = 4554x

Step-by-step explanation:

5.12 x 109 = 558.08

Answer:

7. 35

Step-by-step explanation:

21/x=100/35

(21/x)*x=(100/35)*x       - we multiply both sides of the equation by x

21=2.85714285714*x       - we divide both sides of the equation by (2.85714285714) to get x

21/2.85714285714=x

7.35=x answer

x=7.35

now we have:

35% of 21=7.35

The density of the cube is 4.1g/cm³

The first step is to calculate the volume

Volume= area³

= 3³

= 27

The density can be calculated as follows

= mass/volume

= 110/27

= 4.1

Hence the density of the cube is 4.1gram/cm³

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Answer:

use air math personal tutors to help you and help you show your work!

Step-by-step explanation:

According to the given statement the quicker roofer can finish a house's roof in around 6.7 days when working alone.

In a given base, a round number is a number that ends including one or more "0s." So, 590 is more round than 592, but less round than 600. A round number is frequently interpreted in both technical and casual language to stand for something like a value or values close to the nominal value represented.

If the faster roofer takes t, the slowest one will take 3t.

Their total daily charges for roofing are

1/t + 1/(3t) = 1/5

4/(3t) = 1/5

multiply by 5t

t = 5(4/3)

= 20/3

= 6.7

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Answer:

A. s ≥ 25,000

Hope this helps :)

The law clerk can earn $25,000 or more since being hired.

Answer:

D. 29

Step-by-step explanation:

just did the test and got it correct. Edmentum, Plato.

Answer: 13000

Step-by-step explanation:

So I believe this may be the answer though I'm not very good at this.

Answer: 13,000

Step-by-step explanation:

First look at the first number given and it's decimal place.

Once you figure the decimal place look for the number it is being multiplied by.

Next look at the number it's to the power to.

In this case the number is 4 so the decimal place of the first number will be moved over to the right 4 times.

Next look at the second number given and calculate what the number is to the power of and after multiply the first given number.

Lastly, once you have multiplied You will receive your final given answ⊕er and that will be the standard form.

The length of the sum of the smallest value and the largest value is 105 feet.

Given data

BA = x + 30

BC = 2x + 10

CD = x + 20

Perimeter = 120 feet

The perimeter refers to the sum of all the dimensions which is given as 120 feet. We sum the dimensions given to find the value of x.

This is done as follows:

Perimeter = BA + BC +CD

120 = x + 30 + 2x + 10 + x + 20

120 = x + 2x + x + 30 + 10 + 20

120 = 4x + 60

4x = 120 - 60

4x = 60

x = 60 / 4

x = 15

plugging in x = 15 into the dimensions given we have

BA = x + 30

BA = 15 + 30

BA = 45

BC = 2x + 10

BC = 2 * 15 + 10

BC = 30 + 40

BC = 70

CD = x + 20

CD = 15 + 20

CD = 35

Hence we can say that the smallest value is 35 and the largest value is 70.

sum of the values

70 + 35 = 105

The sum of the smallest value and the largest value is 105 feet.

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Answer:

67.89 is rational

Step-by-step explanation:

67.89 is a terminating decimal, so it is a rational number.

Answer:

When you will take a money.

How many times per year

Answer:

$400???

Step-by-step explanation:

If, thats the whole question.

The equation illustrates that the number of miles will be 3 miles.

The taxi company charged a pick- up fee of $2.90 plus $1.25 per mile.

Let the number of miles be m.

Therefore, this will be:

2.90 + (1.25 × m) = 6.65

2.90 + 1.25m = 6.65

Collect like terms

1.25m = 6.65 - 2.90

1.25m = 3.75

m = 3.75/1.25

m = 3

The number of miles is 3 miles.

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To calculate the equation of the plane from the given information which is as follows:

The plane contains the line that is [tex]x = 2t; y = 1t; z =2-3t[/tex] which are passing through [tex](1,1,1).[/tex]

The standard formula for the equation of the plane is: [tex]a(x-x(0))+b(y-y(0))+c(z-z(0))=0.[/tex]

And the equation of the line is: [tex]\frac{(x-x(0))}{a} = \frac{(y-y(0))}{b} = \frac{(z-z(0))}{c}[/tex]

As per the given data, the value of [tex]a = b = c = 1.[/tex]

And when[tex]t=0: x=0;y=0;z=2[/tex]

Now, the final expression can be rewritten as: [tex]x=y=z-2[/tex]

And the equation of the line can be rewritten as:

[tex](x)+(y)+(z-2)=0.[/tex]

[tex]x+y+z-2 = 0[/tex]

What is the equation of the line?

To represent the set of points in an algebraic form is known as the equation of line. The set of points represent lines in the coordinate system. The parameters can be calculated and those parameters are slope and y-intercept.

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Answer:

-2

Step-by-step explanation:

The value of "x" in the given figure and question is 20 units.

As per the question statement, We are given a figure in which we are supposed to find the value of x.

Before solving the question, if we observe the figure, we can conclude that this question will include the concepts of right angled triangle or specifically Pythagoras Theorem, which states that

[tex]Perpendicular^{2} + base^{2} = hypotenuse^{2}[/tex] where perpendicular, base and hypotenuse are the three sides of the right angled triangle.

In Triangle RTQ

using Pythagoras Theorem

[tex]RQ^{2} = TQ^{2} +TR^{2} \\RQ=x\\x^{2} = 16^{2} + TR^{2} \\TR^{2} = x^{2} -16^{2}[/tex]

Now considering triangle SRT

using Pythagoras Theorem

[tex]SR^{2} = RT^{2} + ST^{2} \\SR^{2} = (x^{2} -16^{2}) +9^{2}\\[/tex]

Now considering triangle RSQ

using Pythagoras Theorem

[tex]SQ^{2} = SR^{2} +RQ^{2} \\(9+16)^{2} = SR^{2} + RQ^{2} \\(9+16)^{2} = x^{2} -7^{2}+x^{2} \\ (9+16)^{2} =2x^{2} -7^{2} \\25^{2}+7^{2} = 2x^{2}[/tex]

[tex]2x^{2} =674[/tex]

[tex]x^{2} =337\\x=\sqrt{337} \\x=18.357[/tex]

Therefore x = 18.357 approx 20 units.

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The mean of the data is 16 cm and the absolute mean deviation is 1.4 cm.

Given we have the data set values.

Total number of data set values = 10

to find the mean we need to find the sum of the data set values and then divide it by the total number of data set values.

Therefore, mean = 13₊14₊14₊16₊16₊16₊16₊18₊18₊19 / 10

mean = 160/10

mean = 16 cm

To find the absolute mean deviation we need to find the deviation from the mean, from that the absolute mean deviation.

Data value    Deviation from mean   Absolute mean deviation

13                      13 ₋ 16 = ₋3                        I ₋3 I = 3

14                      14 ₋ 16 = ₋2                        I ₋2 I = 2

14                      14 ₋ 16 = ₋2                        I ₋2 I = 2

16                      16 ₋ 16 = 0                             0

16                      16 ₋ 16 = 0                             0

16                      16 ₋ 16 = 0                             0

16                      16 ₋ 16 = 0                             0

18                      18 ₋ 16 = 2                             2

18                      18 ₋ 16 = 2                             2

19                      19 ₋ 16 = 2                             3

Now the total of the absolute mean deviation is 14

divide it by 10

= 14/10

= 1.4 cm

Hence we get the mean and the absolute mean deviation as 16 cm and 1.4 cm.

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Answer:

13 65/72 is your answer.

Step-by-step explanation:

Answer:

13 65/72

Step-by-step explanation:

In the picture there are 10 question.

1. Identify the 1st 10 perfect squares?

The 1st 10 perfect squares are 1,4,9,16,25,36,49,64,81 and 100.

[tex]1^{2} =1\\2^{2} =4\\3^{2} =9\\4^{2} =16\\5^{2} =25\\6^{2} =36\\7^{2} =49\\8^{2} =64\\9^{2} =81\\10^{2} =100\\[/tex]

2. What does it mean for a number to a perfect square? provide an example.

By squaring a whole number or an integer, one can create perfect squares. Let's examine an illustration to get the idea behind perfect squares. We can use a set of four and a second set of six marbles for this. Let's set the marbles in order.

See the figure(1).

With four marbles, we can create a square with two rows and two marbles in each row. We can create a rectangle with 6 marbles that has 2 rows with 3 marbles in each row. It signifies that 4 = 2[tex]\times[/tex]2 and 6 = 3[tex]\times[/tex]2 mathematically. Let's concentrate just on the square-shaped numerals. Here, 4 = 2 × 2 = [tex]2^{2}[/tex].

Square A is smaller then Square B. Square B is smaller then Square C.

The 3 Square side length are3,4.2 and[tex]5\frac{1}{2}[/tex].

complete the equation each of the square shown.

3. Square A=Area=[tex]3^{2}[/tex]=9

4. Square B= Area=[tex]4.2^{2}[/tex]=17.64

5. Square C=Area= [tex]\frac{5}{2} =\frac{25}{4}[/tex]

Find the length of the side of the square for each area is given

6.81 square inches

Area=81=[tex]s^{2}[/tex]

s=9

7. [tex]\frac{4}{25} cm[/tex]

area=[tex]\frac{4}{25} cm[/tex]=[tex]s^{2}[/tex]

s=[tex]\frac{2}{5}[/tex]

8.0.49 Square unit

area=0.49=[tex]s^{2}[/tex]

s=0.7

The graph represent the equation [tex]y=x^{2}[/tex].

9.complete the table of values to find corresponding y-values.

if x =-1.4

Substituting in the equation [tex]y=x^{2}[/tex]

Then y=[tex]-1.4^{2}[/tex]

y=1.96.

Therefore, (x,y)=(-1.4,1.96)

if x =-1

Substituting in the equation [tex]y=x^{2}[/tex]

Then y=[tex]-1^{2}[/tex]

y=1.

Therefore, (x,y)=(-1,1)

if x =0

Substituting in the equation [tex]y=x^{2}[/tex]

Then y=[tex]0^{2}[/tex]

y=0.

Therefore, (x,y)=(0,0)

if x =[tex]\frac{2}{5}[/tex]

Substituting in the equation [tex]y=x^{2}[/tex]

Then y=[tex](\frac{2}{5}) ^{2}[/tex]

y=[tex]\frac{4}{25}[/tex].

Therefore, (x,y)=([tex]\frac{2}{5}[/tex],[tex]\frac{4}{25}[/tex])

if x =2

Substituting in the equation [tex]y=x^{2}[/tex]

Then y=[tex]2^{2}[/tex]

y=4.

Therefore, (x,y)=(2,4)

10. why the graph of equation  [tex]y=x^{2}[/tex] is above x-axis.

Because the [tex]y=x^{2}\\[/tex] the x values are always positive because x as a square. So, the equation is always on x- axis or above x-axis.

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The value of 8-√5 is approximately 5.76 which is calculated by rounding the square root of 5 to 2 decimal places.

A number y whose square (the outcome of multiplying the number by itself, or y × y), is x (y² = x) is said to be the square root of a number x.

Now the given expression is of the form ( 8 - √5 )

We know that √5 = 2.2360... ≈ 2.24 (rounded to 2 decimal places.)

∴ 8 - √5

= 8 -  2.24

= 5.76

Hence the value of the expression is approximately 5.76  .

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What is the approximate value of 8–√5 ?

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To solve the inequality, subtract 8 from both sides. The solution is t ≥ 11 or [11, ∞)

Tips to solve linear inequalities:

Interval notation is often used for the solution(s). Recall the differences between a bracket [ or ], and a parenthesis (  or ). A bracket means the endpoint is included in the solution while a parenthesis means the endpoint is not included in the solution. Remember, infinity ∞ always use a parenthesis.

Example:  x ≥ 2 can be written as [2, ∞), while

                x > 0 is written as (2, ∞)

The given problem:

t+8 ≥ 19

Subtract 8 from both sides. Subtracting a number from both sides will not change the inequality. Hence,

t+8 - 8 ≥ 19 - 8

t ≥ 11

Using the interval notation, the solution is [11, ∞)

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The most specific name for the figure in the image is a  Rectangle. Option C

This is further explained below.

Generally, A Rectangle is regarded as a regular quadrilateral under the tenets of Euclidean geometry since it has four sides of equal length amongst opposite sides

It may also be thought of as a rectangle with two adjacent sides that are equal in length.

The word coordinate has the same pronunciation as the word o-ordinate. These expressions may denote having the same status or rank, having to do with coordination, or having to do with an intersection of indices when employed as adjectives.

In conclusion, A square is the most accurate description of the shape that can be seen in the picture. Alternative B

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The midpoint becomes Midpoint M is 3/2, 6.

According to the statement

We have to find that the midpoint.

So, For this purpose, we know that the

Midpoint is the the point on a line segment or an arc that is equidistant, when measured along the line or the arc, from both endpoints.

From the given information:

The end points of AB are A (-7,7)and B (10,5).

Then

Midpoint M = Midpoint of A, Midpoint of B

Then

Midpoint M = -7+10 /2, 7+5/2

Midpoint M = 3/2, 12/2

Midpoint M = 3/2, 6.

Then the midpoint of the AB becomes the 3/2, 6. which represent the 3/2 is the x coordinates and the y coordinates is a 6.

So, The midpoint becomes Midpoint M is 3/2, 6.

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