.........................

Answer:

  A) 10

  B) 39

  C) the last digit must be greater than the previous digit. 0 is not greater than any other digit, so the last digit cannot be 0.

Step-by-step explanation:

A) Numbers of the form low, high, ... can start with digits 1 or 2, and the 3rd digit will be the other one. There 4 such numbers 1423, 1324, 2413, 2314. In addition, For a first digit of 2, the second digit may be 1, allowing 2143. Thus, there are 5 numbers starting with 1 or 2 and ending with 3 or 4.

There are 5 additional numbers that are the reverse of these.

  There are 10 4-digit snake-like numbers containing 1–4 exactly once.

__

B) We assume a "3-digit number" will be in the range 100–999. That is, the leading digit will not be zero. If you allow a leading 0, the answer is different.

With 6 as a middle digit, the numbers 1–5 can be the first digit and the numbers 0–5 can be the last digit. Hence there are 5·6 = 30 numbers of the form low-6-low.

If the form is high-6-high, there are 3 possible first digits and 3 possible last digits, so 3·3 = 9 numbers of the form high-6-high.

  There are 39 3-digit snake-like numbers with 6 as the middle digit.

__

C) A 7-digit snake-like number will alternate high-low, with high being the last digit. Hence the last digit must be higher than the previous digit, so cannot be 0.

Answer:

$2.040

Step-by-step explanation:

Para calcular la cantidad que fue abonada en realidad, debes encontrar el valor del descuento calculando el 15% del valor total de la compra y este resultado se debe restar del total:

$2.400*15%= $360

$2.400-$360= $2.040

De acuerdo a esto, la cantidad abonada en realidad es: $2.040.

Answer:

37

Step-by-step explanation:

Answer:

83.92 - 47.23 = 36.69 to round to the nearest whole it would be 37

Step-by-step explanation:

83.92

- 47.23

= 36.69 and if its five or more you round up so its 37

Answer:

The distance Maria walked is 75 ft.

Total displacement from her starting point is 35 ft east.

Step-by-step explanation:

Consider the sketch below.

The distance travelled can be obtained by adding all the distances walked in different directions.

This is 20ft +35 ft +20ft = 75ft

The distance Maria walked is 75 ft.

The displacement of an object refers to the distance travelled in a specified direction.

We noticed that maria moved 20ft north, then 35 ft east, only to come back 20 ft south again.

This means her total displacement from her starting point is 35 ft east. this is because her north and south movements cancelled out each other.

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{ \sqrt{218} \: \: units}}}}}[/tex]

Step-by-step explanation:

Let the points be A and B

Let A ( -4 , 6 ) be ( x₁ , y₁ ) and B ( 3 , -7 ) be ( x₂ , y₂ )

Finding the distance between these two points

[tex] \boxed{ \sf{distance = \sqrt{ {(x2 - x1)}^{2} + {(y2 - y1)}^{2} } }}[/tex]

[tex] \dashrightarrow{ \sf{ \sqrt{ {(3 - ( - 4))}^{2} + { (- 7 - 6)}^{2} } }}[/tex]

[tex] \dashrightarrow{ \sf{ \sqrt{ {(3 + 4)}^{2} + {( - 7 - 6)}^{2} } }}[/tex]

[tex] \dashrightarrow{ \sf{ \sqrt{ {7}^{2} + {13}^{2} } }}[/tex]

[tex] \dashrightarrow{ \sf{ \sqrt{49 + 169} }}[/tex]

[tex] \dashrightarrow{ \sf{ \sqrt{218}}} [/tex] units

Hope I helped!

Best regards! :D

Answer:

true

Step-by-step explanation:

Answer:

no solution

Step-by-step explanation:

start by

distributing the 2 on the right side of the equation

you should get 4n-9=10+4n

then you should try to combine like terms, start by subtracting the 4n on the left side from the one on the right

both of those should cancel out

leaving you with -9=10, which is obviously false, meaning there is no solution

I think it’s no solution.

Answer:

1. The relationship is proportional.

2. The cost for 30 roses is 90 dollars.

Step-by-step explanation:

1. The price (y) divided by the number of roses (x) equals 3, no matter what section in the table you try it on; y/x = 3. This means that the relationship is proportional.

Another way to explain this is x * 3 = y. For example, 3 roses * $3 = $9

2. We know that one rose costs $3. So you can multiply:

30 roses * $3 = $90

Answer:

x² = 30 - (y-5)²

x² = 30 - [y² - 10x + 25]

x² = 30 - y² + 10x - 25

x² = -y² + 10x + 5

B

Answer:

d = 6

Step-by-step explanation:

[tex]-6-d=-2d\\\\-6+6-d=-2d+6\\\\-d=-2d+6\\\\-d+2d=-2d+2d+6\\\\\boxed{d=6}[/tex]

Hope this helps.

Answer:

yes

Step-by-step explanation:

When forming a triangle, the sum of 2 of the sides must be greater than the third. In this case 12+9=21 which is greater than the third side (21>19)

Answer:

True

Step-by-step explanation:

With the advent and proliferation of the use of computers, data can now be analyzed with the aid of spreadsheets. These spreadsheets such as the one found in Microsoft Excel are arranged in grids whereby, the rows are numbered and the columns are identified with alphabets. The data entered in the spreadsheet are guided by formulas which can be found on the formula tool bar.

The formula gives an insight into the calculation performed for the list of items provided in the grid. There are several mathematical functions that aid in the calculations, such as the SUM and DIV functions.

Answer:

b = (A - lw) / 0.5h

Step-by-step explanation:

The formula for area of the enclosed place is

A=lw+0.5bh

Where,

A= Area of the enclosed space

l= length of the rectangle

w= width of the rectangle

b= base of the triangle

h= height of the triangle

A=lw+0.5bh

Solve for b

A=lw+0.5bh

Subtract lw from both sides

A - lw = lw + 0.5bh - lw

A - lw = 0.5bh

Divide both sides by 0.5h

(A - lw) / 0.5h = (0.5bh) / 0.5h

(A - lw) / 0.5h = b

Therefore,

b = (A - lw) / 0.5h

Answer:

b= A-lw over 0.5h

Step-by-step explanation:

Answer:

42 units

Step-by-step explanation:

If R is the midpoint of QS, then by definition, QR = RS. Since QR = 8x - 51 and RS = 3x - 6, set these equal to solve for x:

QR = RS

8x - 51 = 3x - 6

5x = 45

x = 9

Now that we know x = 9, we can plug this back into one of the expressions for QR or RS to find its length:

QR = 8x - 51 = 8 * 9 - 51 = 72 - 51 = 21

Since half of QS is 21, then the whole of QS is twice that:

2 * 21 = 42

The answer is thus 42 units.

~ an aesthetics lover

yeah no problem wish I cudve helped u

Answer:

x = 1.5

Step-by-step explanation:

First, we distribute (get rid of parentheses):

6x - 3 - 3x = 5 - x - 2

Then, we simplify:

3x - 3 = 3 - x

Then, we combine like terms:

3x + x = 3 + 3

Then, we simplify again:

4x + 6

Finally, we divide 4 on both sides:

We got x = 1.5

Hope this helps!

Answer:

X = 1.5

duhhhhhhhhhhhhh

Answer:

75/99

Step-by-step explanation:

Do you mean

 0.757575... = 0.75 = ?

If so, consider this:

        x =  0.757575...

     100x = 75.757575...

 100x - x = 75

      99x = 75

        x = 75/99

Answer: I think it's 662.4

Please correct me if I'm wrong.

Answer:

the new position of a point, a line, a line segment, or a figure after a transformation

Step-by-step explanation:

Answer:

y=10

m<JKM=106

m<MKL=74

Step-by-step explanation:

Answer:

150.85inches

Step-by-step explanation:

TSA of cone= πr(r+l)

= 22/7×4(4+8)

= 150.85inches

Answer:

The rules when writing a number in standard form is that first you write down a number between 1 and 10, then you write × 10(to the power of a number). On a calculator, you usually enter a number in standard form as follows: Type in the first number (the one between 1 and 10).

Step-by-step explanation:

Answer:

Step-by-step explanation:

2(1/2 A + N = d)

A + 2N = 2d

A = 2d - 2N

Answer:

A = 2(d - N)

Step-by-step explanation:

Given

[tex]\frac{1}{2}[/tex] A + N = d ( subtract N from both sides )

[tex]\frac{1}{2}[/tex] A = d - N ( multiply both sides by 2 to clear the fraction )

A = 2(d - N)

I believe the answer is 9.

Answer:

Option C

Step-by-step explanation:

[tex]x-12=36\\\\x-12+12=36+12\\\\\boxed{x=48}[/tex]

Hope this helps.