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sashaice [31]
3 years ago
14

-6u-6y=66 2v+4y=-32 v=. Y=

Mathematics
1 answer:
Effectus [21]3 years ago
8 0
-6u-6y=66
2u+4y=-32
------------------
u = -6 and y = -5

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A geologist noticed the land along a fault line moved 24.8 centimeters over the past 175 years. On average how much did the land
vodka [1.7K]
Find the unit rate:

That would be 24.8 cm
                        ------------ = 0.14 cm/yr average
                         175 yr
8 0
3 years ago
Can someone please answer these questions to help me understand? Please and thank you! Will mark as brainliest!!
Nadya [2.5K]

QUESTION 1  

If a function is continuous at x=a, then \lim_{x \to a}f(x)=f(a)  

Let us find the limit first,  

\lim_{x \to 4} \frac{x-4}{x+5}  

As x \rightarrow 4, x-4 \rightarrow 0,x+5 \rightarrow 9 and f(x) \rightarrow \frac{0}{9}=0  

\therefore \lim_{x \to 4} \frac{x-4}{x+5}=0  

Let us now find the functional value at x=4  

f(4)=\frac{4-4}{4+5} =\frac{0}{9}=0  

Since  

\lim_{x \to 4} f(x)=\frac{x-4}{x+5}=f(4), the function is continuous at a=4.  

QUESTION 2  

The correct answer is table 2. See attachment.


In this table the values of x approaches zero from both sides.


This can help us determine if the one sided limits are approaching the same value.

As we are getting closer and closer to zero from both sides, the function is approaching 2.


The values are also very close to zero unlike those in table 4.


The correct answer is B


QUESTION 3


We want to evaluate;


\lim_{x \to 1} \frac{x^3+5x^2+3x-9}{x-1}


using the properties of limits.


A direct evaluation gives \frac{1^3+5(1)^2+3(1)-9}{1-1}=\frac{0}{0}.


This indeterminate form suggests that, we simplify the function first.


We factor to obtain,


\lim_{x \to 1} \frac{(x-1)(x+3)^2}{x-1}


We cancel common factors to get,


\lim_{x \to 1} (x+3)^2


=(1+3)^2=16


The correct answer is D



QUESTION 4

We can see from the table that as x approaches -2 from both sides, the function approaches -4


Hence the limit is -4.


See attachment


The correct answer is option A

3 0
3 years ago
8.
andrey2020 [161]

Answer:

Do you want the perimeter of this shape?

5 0
3 years ago
Evaluate the expression begin expression . . . the quantity, negative b plus b . . . times the quantity, 2 plus 7 . . . end expr
Kryger [21]

- b + b \times (2 + 7) \\  =  - 5 + 5 \times 9 \\  =  - 5 + 45 \\  = 40
The answer is 40

Hope this helps. - M
3 0
3 years ago
Can you help and show me how to do it
jarptica [38.1K]
I don’t if it is but your suppose to add them
4.2+1.5
a=5.7
6 0
3 years ago
Read 2 more answers
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