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3 years ago

What is another way to write the expression using the Commutative.(1 5/8 + 4 3/4) + 3 2/8

2 answers:

8 0

Commutative property of addition is
a+(b+c)=(a+b)+c

so just move the partenthsees ()

(1 5/8+4 3/4)+3 2/8=1 5/8+(4 3/4+3 2/8)

vfiekz [6]3 years ago

5 0

$(1 \frac{5}{8}+4 \frac{3}{4})+3 \frac{2}{8} = \\ \\
( \frac{13}{8}+ ^{2)}\frac{19}{4})+\frac{26}{8}= \\ \\
 \frac{13+38}{8}+ \frac{13}{8}= \\ \\
 \frac{64}{8}= \boxed{8}$

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3 years ago

If y=e5t is a solution to the differential equation

a_sh-v [17]

Answer:

k = 30, $y(t) = C_1e^{5t}+C_2e^{6t}$

Step-by-step explanation:

Since $y=e^{5t}$ is a solution, then it must satisfy the differential equation. So, we calculate the derivatives and replace the value in the equation. We have that

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$25e^{5t}-11(5)e^{5t}+ke^{5t}=0 e^{5t}(25-55+k) =0$

Since $e^{5t}$ is a positive function, we have that

$25-55+k = 0 \rightarrow k = 30$ .

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$Ae^{rt}(r^2-11r+30)=0$

We already know that r=5 is a solution of the equation, then we can divide the polynomial by the factor (r-5) to the get the other solution. If we do so, we get that (r-6)=0. So the other solution is r=6.

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3 years ago

WILL MARK YOU BRAINLIEST

Anna007 [38]

rhoumbus that is what I use and got right!!

Step-by-step explanation:

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3 years ago

What is the solution of log(t-3)=log(17-4t)?

solmaris [256]

Log=13
t=4
So, this is because they already given you t because the four is on front of it that gives you your value. From there you will proceed to j7st do the math in your parentheses. You should get log=(1) & log=(13) because 1 times anything is that number just use the inverse of each would be eachother. So, 1x13 is the same as 13x1

6 0

3 years ago

Read 2 more answers