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katrin2010 [14]
3 years ago
8

How do I factor 16x^2 and -49y^2??

Mathematics
1 answer:
jeyben [28]3 years ago
8 0
(4x-7y)(4x+7y)

4x times 4x= 16x^2
-7y times 7y= -49y^2
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Find the indicated limit, if it exists. limit of f of x as x approaches 0 where f of x equals 5 x minus 8 when x is less than 0
mariarad [96]

Find Lim f(x) as x->0

for

f(x)=5x-8 ......x<0

f(x)=|-4-x|......x &ge; 0


Clearly

f(0)=|-4-0|=|-4|=4 exists.

The left-hand limit, as x-> 0- is f(0-)=5(0)-8=-8

The right hand limit, as x->0+ is f(0+)=|-4-0|=|-4|=4


Since the left and right limits do not both equal f(0), the limit does not exist.


3 0
3 years ago
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Solve the equation f(x)=g(x) by graphing the functions f(x)=2x+1 and g(x)=5 on the same set of coordinate axes. Which statements
elixir [45]

Answer:

The ordered pair that contains the solution to the equation lies in Quadrant I.

The solution to the equation is x=2

Hope you ace your test!

7 0
3 years ago
Find the volume of a cube with side lengths of fifteen feet
lidiya [134]

Answer:

3375 feet cube

Step-by-step explanation:

Given :

side of cube = 15 feet

Formula used :

Volume of cube , v = a^3

Solution :

Volume of cube

= a^3

= 15^3

= 15*15*15

= 3375 feet cube

8 0
3 years ago
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vichka [17]
0.65 x 40 = 26
So the answer is 26 pounds.
7 0
3 years ago
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In a population, 11% of people are left handed. In a simple random sample of 160 people selected from this population, the propo
castortr0y [4]

Answer:

The claimed proportion (population) is

p=0.11

The sample proportion (p-hat) is

\hat{p}=0.10

Step-by-step explanation:

In the population, we have the parameter p that is 11%.

p=0.11

Then, a sample of n=160 is taken and the proportion of the sample is 0.10.

\hat{p}=0.10

The sample proportion p-hat can differ from the population's proportion. There is a sampling distribution that gives the possible values of the sample proportion taken out of this population and its associated probabilities.

7 0
3 years ago
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