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3 years ago

The answer show work please

Mathematics

1 answer:

Romashka [77]3 years ago

8 0

Well you need to do 10 plus 13 which equals 23 you don't count the inside number

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Slope of y-10=3(x-2) And the point that the line crosses

ElenaW [278]

Answer:

slope = 3. The line crosses through many points, one of which is (0,4)

Step-by-step explanation:

y = 3x + 4

7 0

2 years ago

Revel and Scooters are the best scooter experience in the Nation which is the best scooter rental service in the nation? Create

Luda [366]

Answer:

See the graph with both lines attached

A) From the tables we see the constant change of values in the second column and the initial value is zero.

This represents a proportional relationship for both tables.

B) Revel

Rate of change is 5 per hour, the equation is:
y = 5x, where y is cost, x - is the number of hours

Scooters

Rate of change is 6 per hour, the equation is:
y = 6x, where y is cost, x - is the number of hours

C) When x = 12,

y = 5*12 = $60 for Revel
y = 6*12 = $72 for Scooters

D) The point (4, 24) represents that:

The cost of 4 hours is $24

E) The second table has confusing titles (days and number of cell phones) but if we assume its same as the first table, then Revel has lower rate as 5 < 6.

Comparing the prices and the graph, Revel has better rate per hour.

8 0

3 years ago

What single decimal multiplier would you use to decrease by 6% followed by a 9% decrease?

Tom [10]

<h3>Answer: 0.8554</h3>

==========================================

Explanation:

A 6% decrease means the multiplier is 1-0.06 = 0.94

A 9% decrease means the multiplier is 1-0.09 = 0.91

Multiply those results: 0.94*0.91 = 0.8554

----------------

Extra Info:

The final price is 85.54% of the original price after the two discounts are applied (in any order). This represents a total discount of 100% - 85.54% = 14.46%

6 0

3 years ago

Is X=[−14−32] the inverse of A=[15−25310−110]?

Elis [28]

The product of the matrices is an identity matrix. Therefore, X and A are inverse of each other.

The matrices are given as:

$X = \left[\begin{array}{cc}-1&-3\\4&2\end{array}\right]$

$A = \left[\begin{array}{cc}\frac 15&\frac 3{10}\\-\frac 25 &-\frac 1{10}\end{array}\right]$

To check the matrices are inverse, we calculate their products.

$A \times X = \left[\begin{array}{cc}\frac 15&\frac 3{10}\\-\frac 25 &-\frac 1{10}\end{array}\right] \times \left[\begin{array}{cc}-1&-3\\4&2\end{array}\right]$

Multiply the rows of A by the column of X.

This gives

$A \times X = \left[\begin{array}{cc}\frac 15 \times -1 + \frac{3}{10} \times 4&\frac 15 \times -3 + \frac{3}{10} \times 2\\ -\frac 25 \times -1 - \frac{1}{10} \times 4&-\frac 25 \times -3 + -\frac{1}{10} \times 2\end{array}\right]$

$A \times X = \left[\begin{array}{cc}1&0\\0&1\end{array}\right]$

The product of A and X is an identity matrix.

This means that; both matrix are inverse of each other