4 years ago

Simplify: (3x^2-5x +9)+(7x^2+8x-5

Mathematics

2 answers:

Ber [7]4 years ago

6 0

Answer:

=10x2+3x+4

Step-by-step explanation:

I hope this helps you

gogolik [260]4 years ago

6 0

Answer:

10x^2+3x+4 should be the correct answer

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Problem A. Consider the following initial value problem for a damped driven linear oscillator: m 2 + b** + kx} = f sin(St); x(0)

skad [1K]

Answer:

a = L

b = MT^(-1)

c = LT^(-1)

k = MT^(-2)

f = MLT^(-2)

S = T^(-1)

Step-by-step explanation:

x (0) = a

x is denoted by displacement in vibration analysis hence attains units of x.

Hence, a = L

b is the damping coefficient:

$b = \frac{F}{\frac{dx}{dt} } \\= MLT^(-2) / LT^(-1)\\= MT^(-1)$

x'(0) = c

dx/dt = velocity hence c attains the units of velocity

c = LT^(-1)

Coefficient k is the stiffness:

$k = \frac{F}{x} = \frac{MLT^(-2)}{L} = MT^(-2)$

Coefficient f is the magnitude of the exciting force

$F = m*acceleration = MLT^(-2)$

Coefficient S is the angular frequency

angular frequency is displacement in radians per seconds; hence,

S = T^(-1)

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3 years ago

Thomas's cat, Rainwright, eats 0.8 cans of food every day. How much will Thomas spend on food in one week if each can costs $1.7

marshall27 [118]

1 week = 7 days
$0.8 \times 7 \times 1.75 \\ = 9.8$

Answer : Thomas spends $9.80 on food in one week.

Hope this helps. - M

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3 years ago

What is the rule that defines the function shown in the graph for the interval, {-2 < x < 0}?

KIM [24]

Answer:

Step-by-step explanation:

720,080 in expanded form with components

(7 X 10>50

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3 years ago

Bryan initially filled a measuring cup with 3/10 of a cup of syrup from a large jug. Then he poured 1/10 of a cup back into the

wariber [46]

2/10. 3-1/10 = 2/10.

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ladessa [460]

Answer:

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Step-by-step explanation:

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