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erastovalidia [21]
3 years ago
13

You used 3/8 of a tank of gas on a trip to the mountains and you used 1/6 of a tank of gas doing errands. You want to visit your

friend who lives out of town. The trip requires 2/5 of a tank of gas. You say there is enough gas left for the trip. Is this reasonable?
Mathematics
2 answers:
irakobra [83]3 years ago
8 0

Answer:

Yes

Step-by-step explanation:

This is reasonable because if you do :

                                                 3/8 - 1/6=

                                   3x3 over 8x3 - 1x4 over 6x4 =

   

                                          9/24 - 4/24 =  9-4 over 24 =

                                                       5/24 and that is greater then 2/5.

   

tankabanditka [31]3 years ago
4 0

Answer:

yes it is reasonable

Step-by-step explanation:

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Find the equivalent expressions for (2+7)(x+1).
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9x1

You would add 2+7 which =9 then x+1 that’s 1 so it would be 9x1
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WHAT IS THE SUM OF 76/81 X 80/76
Advocard [28]

Answer:

80/81

Step-by-step explanation:

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6 0
2 years ago
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What is 1.5 m - 5 cm ?
Alenkasestr [34]

Answer:

1.45 m

Step-by-step explanation:

Convert 1.5 metre into cm

1.5 metre =150 center meters

150 cm -5=145

145 into metres is 1.45 m

7 0
2 years ago
Find T5(x) : Taylor polynomial of degree 5 of the function f(x)=cos(x) at a=0 . (You need to enter function.) T5(x)= Find all va
Burka [1]

Answer:

\bf cos(x)\approx1-\displaystyle\frac{x^2}{2}+\displaystyle\frac{x^4}{4!}=\\\\=1-\displaystyle\frac{x^2}{2}+\displaystyle\frac{x^4}{24}

The polynomial is an approximation with an error less than or equals to <em>0.002652</em> for x in the interval

[-1.113826815, 1.113826815]

Step-by-step explanation:

According to Taylor's theorem

\bf f(x)=f(0)+f'(0)x+f''(0)\displaystyle\frac{x^2}{2}+f^{(3)}(0)\displaystyle\frac{x^3}{3!}+f^{(4)}(0)\displaystyle\frac{x^4}{4!}+f^{(5)}(0)\displaystyle\frac{x^5}{5!}+R_6(x)

with

\bf R_6(x)=f^{(6)}(c)\displaystyle\frac{x^6}{6!}

for some c in the interval (-x, x)

In the particular case f

<em>f(x)=cos(x) </em>

<em> </em>

we have

\bf f'(x)=-sin(x)\\f''(x)=-cos(x)\\f^{(3)}(x)=sin(x)\\f^{(4)}(x)=cos(x)\\f^{(5)}(x)=-sin(x)\\f^{(6)}(x)=-cos(x)

therefore

\bf f'(x)=-sin(0)=0\\f''(0)=-cos(0)=-1\\f^{(3)}(0)=sin(0)=0\\f^{(4)}(0)=cos(0)=1\\f^{(5)}(0)=-sin(0)=0

and the polynomial approximation of T5(x) of cos(x) would be

\bf cos(x)\approx1-\displaystyle\frac{x^2}{2}+\displaystyle\frac{x^4}{4!}=\\\\=1-\displaystyle\frac{x^2}{2}+\displaystyle\frac{x^4}{24}

In order to find all the values of x for which this approximation is within 0.002652 of the right answer, we notice that

\bf R_6(x)=-cos(c)\displaystyle\frac{x^6}{6!}

for some c in (-x,x). So

\bf |R_6(x)|\leq|\displaystyle\frac{x^6}{6!}|=\displaystyle\frac{|x|^6}{6!}

and we must find the values of x for which

\bf \displaystyle\frac{|x|^6}{6!}\leq0.002652

Working this inequality out, we find

\bf \displaystyle\frac{|x|^6}{6!}\leq0.002652\Rightarrow |x|^6\leq1.90944\Rightarrow\\\\\Rightarrow |x|\leq\sqrt[6]{1.90944}\Rightarrow |x|\leq1.113826815

Therefore the polynomial is an approximation with an error less than or equals to 0.002652 for x in the interval

[-1.113826815, 1.113826815]

8 0
3 years ago
A worm travels 1,250 millimeters.How many meters did the worm travel
vazorg [7]


The answer is 1.25 meters.

hope it helps

can you choose mine as the brainliest answer

5 0
3 years ago
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