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hjlf
3 years ago
15

Answer The Expression. 55−63+20 1/4 ÷ 43 1/4

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
5 0

Answer:

-7.53179190751

Step-by-step explanation:

(55-63)+((20 1/4)/(43 1/4))=

-8+0.46820809248= -7.53179190751

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Harold randomly selected one square tile and one round tile from the sets shown below. What is the probability that Harold selec
Rus_ich [418]

Answer:

  C.  1/9

Step-by-step explanation:

Assuming the selections are independent, their joint probability is the product of the probabilities of the individual events.

  P(pink square) = (# pink squares)/(# squares) = 16/60 = 4/15

  P(red or blue round) = (#red or blue rounds)/(# rounds) = 15/36

Then the joint probability is ...

  P(defined event) = (4/15)(15/36) = 4/36 = 1/9

4 0
2 years ago
F(x)=(x-6)e^-3x find the interval in which f(x) is increasing, the intervals on which f(x) is decreasing, and the local extrema
Over [174]
\bf f(x)=(x-6)e^{-3x}\\\\
-----------------------------\\\\
\cfrac{dy}{dx}=1\cdot e^{-3x}+(x-6)-3e^{-3x}\implies \cfrac{dy}{dx}=e^{-3x}[1-3(x-6)]
\\\\\\
\cfrac{dy}{dx}=e^{-3x}(19-3x)\implies \cfrac{dy}{dx}=\cfrac{19-3x}{e^{3x}}

set the derivative to 0, solve for "x" to get any critical points
keep in mind, setting the denominator to 0, also gives us critical points, however, in this case, the denominator will never be 0, so... no critical points from there

there's only 1 critical point anyway, and do a first-derivative test on it, check a number before it and after it, to see what sign the derivative has, and thus, whether the graph is going up or down, to check for any extrema
5 0
3 years ago
5 more than twice x (algebraic expression)
goldenfox [79]
5 + 2x 

hope this helps and give brainliest thanks !
3 0
3 years ago
Read 2 more answers
Identify the degree, type, and lead coefficient of f(x) = x2 + 3x - 4x + 6x* - 1.
bonufazy [111]

Answer:

2, quadratic, 1

Step-by-step explanation:

Degree is the highest power which is 2 then the lead coefficient is the constant multiplying the highest power so for x^2 it is 1 and the type of equation is what is it, linear, quadratic, cubic, etc. For this it is quadratic because x^2 means its a parabola.

6 0
2 years ago
I NEED HELP ASAP!<br><br> Evaluate -6 - (-9) ÷ 3
givi [52]

Answer:

-3

Step-by-step explanation:

yw

6 0
2 years ago
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