2 years ago

Why can you multiply unlike terms but not add them?

1 answer:

4 0

When you’re adding unlike terms think of the term as a last name. You could never add two last names because that wouldn’t make sense. But with multiplying you don’t need to worry about the “last name”.

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Jack's baby sister crawled three and five tenths meters today.which number represents that distance?

BaLLatris [955]

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8 0

3 years ago

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vitfil [10]

The range for group 2 is greater than the range for group 1

8 0

2 years ago

Write down the next term in each of the following sequences

Archy [21]

Answer is:
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4 0

3 years ago

Read 2 more answers

The scale on a map shows that 5 centimeters = 2 kilometers.

ryzh [129]

5 cm = 2km

Scale= 5 cm : 200000 cm

= 1 : 40000

a. 1 : 40000 = x : 500000

x = 12.5 cm

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8 0

3 years ago

Find the equation of the exponential function represented by the table below:

IgorC [24]

Answer:

$y=2^{1-x}$

Step-by-step explanation:

<u>Exponential Function</u>

When we need to express the exponential relation between two variables, we use the equation

$y=Cr^{x}$

where C, r are constants to be determined by using the given points from the table

For x=0, y=2, thus

$2=C.r^{0}=C$

We find that C=2

The equation is now

$y=2r^{x}$

Now we use the point x=1, y=1

$1=2r$

We find that

$\displaystyle r=\frac{1}{2}$

Thus, the equation is

$\displaystyle y=2\left(\frac{1}{2}\right)^{x}$

Rearranging

$y=2(2)^{-x}=2^{1-x}$

The required equation is

$y=2^{1-x}$

We can easily verify the last two points are also obtained by using the equation

7 0

3 years ago