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enyata [817]
3 years ago
10

-2x2-2x+1 +(-3x2-x-1) Add the following

Mathematics
1 answer:
DENIUS [597]3 years ago
7 0

Step-by-step explanation:

hey c mgfcmg fykytfyi uuygu gyy tfyy tyfvkyf kyfkyt ktf iu

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Can someone please help me solve the following? 2-(-2)³+(-4/2)³
Tcecarenko [31]

Answer:

BPEMDAS (brackets, parentheses, exponents, multiplication and division, addition and subtraction)- Left to right

Notes: Two negatives make a positive. When you have an odd exponent of an negative number, you get a negactive result.

2-(-8)+(-2)³

10-8

2

Hope this makes sense! :)

7 0
3 years ago
Carla is riding a motorcycle across the country. After 4 hours, she is 600 miles from Denver. After 8 hours, she is 320 miles fr
KengaRu [80]
I wanna say 920 but may be wrong 
6 0
3 years ago
Read 2 more answers
Find the limiting value using L hospital​
viktelen [127]

Answer:

  -1

Step-by-step explanation:

The expression evaluates to the indeterminate form -∞/∞, so L'Hopital's rule is appropriately applied. We assume this is the common log.

  d(log(x))/dx = 1/(x·ln(10))

  d(log(cot(x)))/dx = 1/(cot(x)·ln(10)·(-csc²(x)) = -1/(sin(x)·cos(x)·ln(10))

Then the ratio of these derivatives is ...

  lim = -sin(x)cos(x)·ln(10)/(x·ln(10)) = -sin(x)cos(x)/x

__

At x=0, this has the indeterminate form 0/0, so L'Hopital's rule can be applied again.

  d(-sin(x)cos(x))/dx = -cos(2x)

  dx/dx = 1

so the limit is ...

  lim = -cos(2x)/1

  lim = -1 when evaluated at x=0.

_____

I find it useful to use a graphing calculator to give an estimate of the limit of an indeterminate form.

5 0
2 years ago
$1000 in a savings account where his money is compounded continuously at 6%. How long will it take him to have $1200 in his bank
Alex_Xolod [135]
Years = Natural Logarithm(Total / Principal) / rate
Years = ln (1,200 / 1,000) / .06
Years = ln (6 / 5) / .06
Years = ln (1.2) / .06
Years = 0.18232155679 / .06
Years = <span> <span> <span> 3.0386926132 </span> </span> </span>
Years = <span> <span> <span> 3.0 (rounded)

</span></span></span>answer is B


7 0
3 years ago
One number is six less than a second number. Twice the first is 4 more than times 6 the second. Find the numbers.
Fynjy0 [20]

Answer:

\text{First number: }-10, \\\text{Second number: }-4

Step-by-step explanation:

We can write the following system of equations:

Let the first number be f and the second number be s:

\begin{cases}f+6=s, \\2f-4=6s\end{cases}

Solving, we get:

\int\limits^a_b {x} \, dx \begin{cases}f+6=s, \\2f-4=6s\end{cases},\\2f-4=6(f+6),\\2f-4=6f+36,\\-40=4f,\\f=\boxed{-10}

Solving for s:

f+6=s,\\-10+6=s,\\s=\boxed{-4}

3 0
3 years ago
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