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3 years ago

Twenty decreased by the product of four and a number

Mathematics

1 answer:

sashaice [31]3 years ago

7 0

Answer:

It could be 4x5-20=0

Step-by-step explanation: 5 is the number i chose, hope this helps.

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In the following table of values, the first differences are

ExtremeBDS [4]

Answer:

-7

Step-by-step explanation:

Given

$\begin{array}{ccc}x & {y} & {First\ difference} & {-2} & {34} & {}&{-1} & {27} & {} &{0} & {20} & {} & {1} & {13} & {} & {2} & {6} &{} \ \end{array}$

Required

The first difference

To do this, we simply calculate the difference between the consecutive y-values.

i.e.

$d = y_{n+1} - y_n$

So, we have:

$d = y_2 - y_1 = 27 - 34 = -7$

$d = y_3 - y_2 = 20 - 27 = -7$

$d = y_4 - y_3 = 13 - 20 = -7$

$d = y_5 - y_4 = 6-13 = -7$

<em>Hence, the first differences are -7 (all through)</em>

5 0

3 years ago

What is the length of (AB)?

earnstyle [38]

AB = 4 units
BC = 8 units
perimeter = 2(l+b) = 2(8+4) = 2(12) = 24 units

hope it helps...!!!

3 0

2 years ago

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I need help plzzzzzzz!

myrzilka [38]

With what???!!??!! Lol

5 0

2 years ago

How to find domain and range of a graph

Nadya [2.5K]

Answer:

the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.

5 0

2 years ago

Simplify -3x+1y+8x-8y

Fudgin [204]

Answer:

-3x +1y +8x -8y

=5x-7y

The answer is: 5x-7y

6 0

3 years ago

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