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3 years ago

Can I get some help please

Mathematics

1 answer:

klasskru [66]3 years ago

4 0

A^2 - b^2 = (a+b)(a-b)

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Solve Thais equation 2x=8(4x-5).

Misha Larkins [42]

4/3 in fraction form

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3 years ago

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Four times the sum of a number X and two is sixteen

brilliants [131]

Answer: x=14

Step-by-step explanation:

Subtract 2

from both sides of the equation.

X=16−2

Subtract 2

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X=14

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3 years ago

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The water level of a certain body of water is changing at a rate of W(t)=3/4cos(4-t/2) inches per hour, where t represents hours

Leni [432]

Answer:

The answer is below

Step-by-step explanation:

a) The integral $\int\limits^{10}_{1 } {W(t)} \, dt$ means the total change in level of water in inches from 1 am to 10 am. That is the water level change measured in inches between 1 am and 10 am

b) 7 pm is represented as t = 19 hours, while midnight is represented as t = 24 hours, hence the water level change between 7 pm and midnight is:

$\int\limits^{24}_{19 } {W(t)} \, dt\\\\$

c) Using casio calculator to evaluate the integral gives:

$\int\limits^{24}_{19 } {W(t)} \, dt\\\\$ = 2.54 inches

D) The total daily change in water level = $\int\limits^{24}_{0 } {W(t)} \, dt\\\\$ = 0.35 inches

8 0

3 years ago

Find the area of the blue triangle Omg pls help muehhh

Alik [6]

Answer:

B) 42 units squared

Step-by-step explanation:

12 * 7 = 84

84 / 2 = 42

Hope this helped! Have a nice day! Plz mark as brainliest!!!

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3 years ago

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Perform the indicated operation.(4r/r+3) - (5/r)

Aleks [24]

Answer:

4r² - 5r - 15 / r(r+3)

Step-by-step explanation:

To solve this problem, we will proceed the following way, writing down the common multiple of the denominators.

$\frac{4r}{r+3} -\frac{5}{r} =\frac{4r(r)-5(r+3)}{r(r+3)} =\frac{4r^{2}-5r-15 }{r(r+3)}$

Thus, the answer is 4r² - 5r - 15 / r(r+3)

7 0

4 years ago