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3 years ago

Solve 5x2 = −30x − 65. x = −3 ± 2i x = −3 ± 4i x = −6 ± 2i x = −6 ± 4i

Mathematics

1 answer:

Vladimir [108]3 years ago

8 0

The answer is -6 -/+ 4i. Hope this helps.

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Find the general solution to y" – 8 y' + 15 y=0.

Katyanochek1 [597]

Answer:

y" - 8y' + 15y = 0

2nd order Homogeneous DE.

Solving Quadratically

k² - 8k + 15 = 0

k= 5 or k= 3.

Two real and Unequal roots.

y= Ae^5x + Be^3x.

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3 years ago

If the cost is $35.96 and the desired markup is 10%, what is the price after markup? 3.60 39.56 359.60 395.60

mixas84 [53]

35.96+(35.96×0.10)
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4 years ago

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The volumes of two solids are 135 in3 and 625 in3. Find the similarity ratio.

ludmilkaskok [199]

Formula for ration:

$\dfrac{Volume_1}{Volume_2} = \bigg( \dfrac{Length_1}{Length_2} \bigg)^3$

$\text {Ratio = } \sqrt[3]{\dfrac{135}{625} } = \sqrt[3]{\dfrac{27}{125} } = \dfrac{3}{5}$

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4 years ago

How many terms are in the algebraic expression 14m-8.8n+5p-1

Alika [10]

Answer:

4 terms

Step-by-step explanation:

Terms are separated by adding or subtracting.

The terms are:

14m

-8.8n

-1

The variables are not separate terms because they are multiplying with the coefficient, not adding or subtracting.

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3 years ago

What is the algebraic expression for the product of 9 and a number t

musickatia [10]

$9t$
..........

6 0

3 years ago