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3 years ago

Twenty one is no less than the sum of a number and -2

1 answer:

4 0

$x+(-2)=21
$
get rid of -2 by subtracting it from 21
$x+(-2)=21-(-2)$
Now you get your answer
$x=23$
Hope this helps! :)

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What is 5 subtracted by 6 exponent 2 divided by 4 subtracted by 3? Show how u got the answer plz I know it’s negative 7 but i do

11111nata11111 [884]

Answer: The answer is not -7 it is in fact -31.

Step-by-step explanation:

5 - ( 6^2 ) / 4 - 3

6^2 = 36

5 - ( 6^2 ) = -31

4 - 3 = 1

5 - 36 / 1 = -31 / 1 = -31

So anything divided by 1 is = to itself.

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3 years ago

Can you guys graph a system of equations and make sure it has two parabolas with the same vertex and a line that crosses the sam

Andrews [41]

Answer:

Sketch the following three graphs:

1) y = (x - 5)²

2) y = -(x - 5)²

3) y = x - 5

First two are parabolas with vertex at (5,0)

Third one is a line which intersects both the parabolas as (5,0)

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2 years ago

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Recursive formula of the arithmetic sequence 4,9,14,19

lukranit [14]

Answer:

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1 year ago

Y = 100 (1- 1/2) ^t<br><br> decay or growth

charle [14.2K]

Answer:

Decay

Step-by-step explanation:

We are given an equation $y=100(1-0.5)^t$

We need to say about decay or growth of exponential function.

Exponential function: $y=a\cdot b^x$

Where,

a is initial value of exponential function.
b is decay or growth of function

For decay: 0<b<1

For growth: b>1

Now we rewrite the equation into this form

$y=100(1-0.5)^t$

Changes to

$y=100(0.5)^t$

Here, b=0.5 < 1

Therefore, The given function would be decay.

Thus, $y=100(1-0.5)^t$ is deacy.

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3 years ago

Graph the solution of −5a+6>11.<br> Please, I need help!!!

horsena [70]

Answer:

$\large\boxed{a$

Step-by-step explanation:

$-5a+6>11\qquad\text{subtract 6 from both sides}\\\\-5a>5\qquad\text{change the signs}\\\\5a$

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3 years ago