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2 years ago

PLEASE HELP! 50 POINTS ON THE LINE!

Mathematics

1 answer:

MAVERICK [17]2 years ago

8 0

Answer: hello! I'm here to help.

Let's work the problem using just the thousands and leave the zeros off. We'll add them back at the end.

Let M be the salary of the Master's degree, and B be the salary of the Bachelor's degree.

M + B = 120

M + 39 = 2B

M = 2B - 39

2B - 39 + B = 120

3B - 39 = 120

3B = 159

B = 53

M = 120 - B = 120 - 53 = 67

<h2>PLEASE BRAINLIEST! :)</h2>

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Step-by-step explanation:

Statement is incorrect. Correct form is presented below:

<em>The height </em> $h(t)$ <em> of an ball that is thrown straight upward from an initial position 3 feet off the ground with initial velocity of 90 feet per second is given by equation </em> $h(t) = 3 +90\cdot t -16\cdot t^{2}$ <em>, where </em> $t$ <em> is time in seconds. After how many seconds will the ball be 84 feet above the ground. </em>

We equalize the kinematic formula to 84 feet and solve the resulting second-order polynomial by Quadratic Formula to determine the instants associated with such height:

$3+90\cdot t -16\cdot t^{2} = 84$

$16\cdot t^{2}-90\cdot t +81 = 0$ (1)

By Quadratic Formula:

$t_{1,2} = \frac{90\pm \sqrt{(-90)^{2}-4\cdot (16)\cdot (81)}}{2\cdot (16)}$

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