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tamaranim1 [39]
3 years ago
13

3. Use powers to rewrite these problems:

Mathematics
1 answer:
VLD [36.1K]3 years ago
7 0
A=Y^6
B=7^4•n^5•m
C=y^4
D=t^4
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Which table shows a function that is decreasing only over the interval (–1, ∞)?
aleksandr82 [10.1K]

The table that shows a function that is decreasing only over the interval (–1, ∞) is:

A 2-column table with 6 rows. The first column is labeled x with entries negative 3, negative 2, negative 1, 0, 1, 2. The second column is labeled f of x with entries negative 1, negative 3, negative 5, negative 2, negative 1, 2.

<h3>When a function is decreasing?</h3>

A function is decreasing if when we increase the value of x, we decrease the value of y, and vice versa.

Decreasing on the (–1, ∞) means that as x increases on the interval, i.e. x = -100, then x = -10, then x = -2, the value of y decreases. The function that follows this pattern only on this interval is:

A 2-column table with 6 rows. The first column is labeled x with entries negative 3, negative 2, negative 1, 0, 1, 2. The second column is labeled f of x with entries negative 1, negative 3, negative 5, negative 2, negative 1, 2.

More can be learned about decreasing functions at brainly.com/question/2649645

#SPJ1

3 0
2 years ago
To win the small county lottery, one must correctly select 3 numbers from 30 numbers. the order in which the selection is made d
scoray [572]
3 x30=90 so there are 90 possible answers
7 0
3 years ago
4x + 5x - 5y + 3y simplified
Step2247 [10]
9x - 2y ......................hope i helped
7 0
3 years ago
Read 2 more answers
5x+2.5=-20 solve x, show your steps
notka56 [123]

Answer:

5x =  - 20 - 2.5 \\ 5x = −22.5 \\x =    \frac{ - 22.5}{ - 5}   \\ (x =  - 4.5) \times  - 1 \:  \:  \:  \: x \: can \: not \: be \: negative \\ x = 4.5

5 0
3 years ago
If x varies directly with y and x=-19 when y=14 what is x when y=2
tatyana61 [14]

The variation from x to y is an illustration of a direct variation

The value of x when y = 2 is -19/7

<h3>How to determine the value of x?</h3>

The variation is a direct variation.

So, we have:

x = ky

Where k represents the constant of variation

Make k the subject

k = x/y

This gives

x1/y1 = x2/y2

So, we have:

-19/14 = x/2

Multiply both sides by 2

x = -19/14 * 2

Evaluate

x = -19/7

Hence, the value of x when y = 2 is -19/7

Read more about direct variation at:

brainly.com/question/6499629

4 0
3 years ago
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