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2 years ago

137x8 multiply with expanded form please help 10 ponte for your help please help!

Mathematics

1 answer:

Step2247 [10]2 years ago

3 0

Answer: maybe 20

Step-by-step explanation:

or find it out yourself

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Mr. Gail uses 12 gallons of gas for a 400-mile trip. How far can I travel on one gallon of gas

bulgar [2K]

Answer:

100/3 or 33.34 miles a gallon

Step-by-step explanation:

Divide the number of miles by gallons of gas to get the number of miles traveled on one gallon of gas.

3 0

2 years ago

It takes 34 pounds of seed to completely plants 5 acre field. How many pounds of seed are needed per acre?

Nataly [62]

Answer:

Step-by-step explanation:

Since 34 Lbs of seed is needed for 5 Acre's, You will need two find 1/5th of 34.

1/5 in decimal form is 0.2

34*0.2= 6.8

In order to cover 1 Acre of land you will need 6.8 lbs of seed.

Hope this helps!

6 0

2 years ago

Please help me with the below question.

VMariaS [17]

By letting

$y = \displaystyle \sum_{n=0}^\infty c_n x^{n+r}$

we get derivatives

$y' = \displaystyle \sum_{n=0}^\infty (n+r) c_n x^{n+r-1}$

$y'' = \displaystyle \sum_{n=0}^\infty (n+r) (n+r-1) c_n x^{n+r-2}$

a) Substitute these into the differential equation. After a lot of simplification, the equation reduces to

$5r(r-1) c_0 x^{r-1} + \displaystyle \sum_{n=1}^\infty \bigg( (n+r+1) c_n + (n + r + 1) (5n + 5r + 1) c_{n+1} \bigg) x^{n+r} = 0$

Examine the lowest degree term $\left(x^{r-1}\right)$ , which gives rise to the indicial equation,

$5r (r - 1) + r = 0 \implies 5r^2 - 4r = r (5r - 4) = 0$

with roots at r = 0 and r = 4/5.

b) The recurrence for the coefficients $c_k$ is

$(k+r+1) c_k + (k + r + 1) (5k + 5r + 1) c_{k+1} = 0 \implies c_{k+1} = -\dfrac{c_k}{5k+5r+1}$

so that with r = 4/5, the coefficients are governed by

$c_{k+1} = -\dfrac{c_k}{5k+5} \implies \boxed{g(k) = -\dfrac1{5k+5}}$

c) Starting with $c_0=1$ , we find

$c_1 = -\dfrac{c_0}5 = -\dfrac15$

$c_2 = -\dfrac{c_1}{10} = \dfrac1{50}$

so that the first three terms of the solution are

$\displaystyle \sum_{n=0}^2 c_n x^{n + 4/5} = \boxed{x^{4/5} - \dfrac15 x^{9/5} + \frac1{50} x^{13/5}}$

4 0

1 year ago

If f(x) is a continuous function defined for all real numbers, f(–1) = 1, f(–5) = –10, and f(x) = 0 for one and only one value o

Mashcka [7]

The answer is would be B. -5

4 0

3 years ago

What is the product of -13/8 and 24/5

IgorC [24]

Answer:

-7 4/5 or -7.8

Step-by-step explanation:

Product means multiplication

( - 13/8 )( 24/5)

= (-13 · 24)/(8 · 5) negative · positive = negative

= - 312/40

= -7 32/ 40 = -7 4/5 or 7.8

6 0

2 years ago