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3 years ago

866 estimate the value

Mathematics

2 answers:

babymother [125]3 years ago

7 0

The estimated value is 900

elixir [45]3 years ago

3 0

Answer:

900

Step-by-step explanation:

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For f(x)=2x+1 and g(x)=x^2-7, find (f.g)(x)

hram777 [196]

Option C (in the figure) is correct.

Step-by-step explanation:

We need to find (f.g)(x)

Given that $f(x)=2x+1\\g(x)= x^2-7$

Now finding (f.g)(x)

$(f.g)(x)= f(x).g(x)$

$(f.g)(x)= (2x+1)(x^2-7)\\(f.g)(x)=2x(x^2-7)+1(x^2-7)\\(f.g)(x)=2x^3-14x+x^2-7\\(f.g)(x)=2x^3+x^2-14x-7$

So, $(f.g)(x)=2x^3+x^2-14x-7$

Option C (in the figure) is correct.

Learn more about Composite Functions at:

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Keywords: Composite function

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8 0

3 years ago

1) If 3 out 5 students play sports at school, how many students play

jeka94

Answer:

432

Step-by-step explanation:

6 0

4 years ago

Read 2 more answers

Oliver and Peter had the same length of string. Oliver used 3/4 of his string to tie a bundle of newspaper. Peter used 6/8 of hi

solmaris [256]

Answer:

Yes they did.

Step-by-step explanation:

So you have the fraction 3/4 and 6/8. If you divide the fraction 6/8 by 2 you will get 3/4 since 6/8 is an unsimplifed form of 3/4.

7 0

4 years ago

-9x+3y=-6,-9x+2y=-10

ikadub [295]

Subject : Linear Equations

→ Use Elimination:
-9x + 3y = -6
-9x + 2y = -10
__________ ---
0 + y = 4
y = 4

→ Use substitution:
-9x + 3y = -6
-9x + 3(4) = -6
-9x + 12 = -6
-9x = -6 - 12
-9x = -18
x = -18/-9
x = 2

So the value of x = 2 and y = 4

I hope this helps...

8 0

3 years ago

(x+0.5)^2=0.64 solve the equation for x

MrRa [10]

Hi,

$\sqrt{(x+\frac{1}{2}) ^{2} } = \sqrt{\frac{64}{100}} \\\\$

= (x + 1/2) = 8/10

= ( $\frac{2x+1}{2}$ ) = 8/10

= 20x + 10 = 16

= 20x = 6

= x = 6/20

= x = 3/10

x => 0,3

3 0

3 years ago