2 years ago

Can someone pleaseee help me its due soon :(( I’ll mark as brainliest

Mathematics

2 answers:

algol [13]2 years ago

5 0

That’s hard work it’s 77

natta225 [31]2 years ago

5 0

Answer:

they made 3087.51 in 2 weeks

so compared to week on they made 1397.15 more than week 1

Step-by-step explanation:

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In a shipment of 600 parts, 30 are found to be defective. How many defective parts should be expected in a shipment of 1000?

kobusy [5.1K]

We can except 30/600 = 0.05>> 5%percent,
so 1000 * 0.05 = 50 parts defective

6 0

3 years ago

Use Laplace transform methods to solve the differential equation: The initial conditions are f(0) = 0 and <img src="https://tex.

Llana [10]

Answer:

Step-by-step explanation:

$\frac{d^2 y}{dt^2} +12\frac{dy}{dt} +32y = 10e^{-2t}$ where f(x) is replaced by y

Take Laplace on both sides

$s^2 Y -s(0)-0 +12s Y-0+32Y = \frac{10}{s+2} \\Y(s^2+12s+32) = \frac{10}{s+2}\\Y = \frac{10}{(s+2)(s+4)(s+8)}$

We can resolve into partial fraction to get Y = L(y)

Let this equals

$\frac{A}{s+2} +\frac{B}{s+4} +\frac{C}{s+8} \\10 = A(s+4)(s+8) + B(s+2)(s+8) +Cs+4)(s+2) \\$

Solving we get

s=-9

24C = 10 or C =5/12

s=-2: A=10/12=5/6

s=-4: B = -5/4

Taking inverse Laplace

$y(t) = \frac{-5e^{-4t} }{4} + \frac{5e^{-8t} }{12} +\frac{-5e^{-2t} }{6}$

6 0

3 years ago

Question #2:

Lesechka [4]

Answer:

If 4/8 cm = 25 miles

If 4.8 cm = 240 miles

If 48 cm = 2400

Step-by-step explanation:

4/8 x 50

4.8 x 50

48 x 50

I was unsure if there was a fraction bar or decimal. or if it was 48 so I gave all possibilities.

3 0

3 years ago

Please a genius help me please

Vedmedyk [2.9K]

Answer:

B, D, and F

They match the graph

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2 years ago

A migrating bird flies 315 miles in 15 hours. How many miles does it fly in 7 hours?

cluponka [151]

Answer:

147

Step-by-step explanation:

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3 years ago

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