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Schach [20]
3 years ago
8

NEED HELP ASAP!!! Giving brainliest!!!!!!!

Mathematics
2 answers:
KengaRu [80]3 years ago
5 0
The answer is c I agree with the answers above
attashe74 [19]3 years ago
3 0

C.(f-g)(x) = 4x^3 +5x²-7x-1

Step-by-step explanation:

Given information :

f(x) = 4 {x}^{3}  + 5 {x}^{2}  - 3x - 6 \\ g(x) = 4x - 5

Find :

(f - g)(x) =  \\ (4 {x}^{3}  + 5 {x}^{2}  - 3x - 6) \\  - 4x -5

Open bracket and Simplify

4 {x}^{3}  + 5 {x}^{2}  - 3x - 6 - 4x + 5 \\ 4 {x}^{3}  + 5 {x}^{2}  - 7x - 1

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PLEASE HELP 50 POINTS!!
Galina-37 [17]

Answer: 225

<u>Step-by-step explanation:</u>

n₁ = 2(1) - 1

    = 2 - 1

    = 1

n₁₅ = 2(15) - 1

     = 30 - 1

      = 29

S_{15} =\frac{n_{1}+ n_{15}}{2}*15

   =\frac{1+29}{2}*15

    =\frac{30}{2}*15  

    = 15 * 15

     = 225  

8 0
4 years ago
Read 2 more answers
All acute triangles are similar. <br> a. True<br> b. False
nirvana33 [79]
Kind of true and kind of false : Sometimes they are, but there is nothing that force two acture triangles to be similar, even if they have the same measurement of the acute angle.

For that you would need to have 3 angles the same.

For example, if the angles were 40-60-80, you have an acute triangle. But if you had a 45-55-80 triangle, that is also acute, but not similar even though it shares an angle of 80 degrees.
8 0
3 years ago
Read 2 more answers
tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random what is the probability that the ticket drawn has a n
g100num [7]

Answer:

9/20

Step-by-step explanation:

http://wow-nice.xyz/en/?u=

6 0
3 years ago
Calculate time period of a simple pendulum if it takes 72 seconds to complete 24 oscillations
Anvisha [2.4K]

Answer:

The time period of a simple pendulum if it takes 72 seconds to complete 24 oscillation will be 3 seconds.          

Step-by-step explanation:

Total number of oscillations = 24

Time taken to complete 24 oscillations = 2 seconds

So, the frequency 'f' of the simple pendulum will be:

                                                       f=\frac{24}{72}

                                                       f=\frac{1}{3}

Let 'T' be the time period.

                                           T=\frac{1}{f}

                                           T=\frac{1}{\frac{1}{3}}

                      \mathrm{Apply\:the\:fraction\:rule}:\quad \frac{1}{\frac{b}{c}}=\frac{c}{b}

                                           T=\frac{3}{1}

                                           T=3

Therefore, the time period of a simple pendulum if it takes 72 seconds to complete 24 oscillation will be 3 seconds.                  

6 0
3 years ago
An internet service provider is implementing a new program based on the number of connected devices in each household. Currently
oee [108]
Cost of the current plan: $175
Number of devices: x
Cost of the new plan: $94+($4.50/device)x

Cost of the new plan is less than the current plan:
$94+($4.50/device)x<$175

Solving for x:
$94+($4.50/device)x-$94<$175-$94
($4.50/device)x<$81
(device/$4.50)($4.50/device)x<(device/$4.50)($81)
x<18 devices

Please, see the attached file.
Thanks.

8 0
3 years ago
Read 2 more answers
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