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Ksju [112]
3 years ago
9

Write the polynomial in standard form (-5x^3+6x^2-3x+7)+(7x^3+8x^2-10x-10)

Mathematics
1 answer:
Greeley [361]3 years ago
5 0

Answer:

2x^3 +14x^2 -13x-3

Step-by-step explanation:

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If the flare is launched with an initial velocity of 144 feet per second, find the height after 2 seconds. The answer is not 288
salantis [7]

Answer:

The height = 223.6 ft

Step-by-step explanation:

∵ Initial velocity (u) = 144 ft/sec

∵ t = 2 sec

∵ a = - 32.2 ft/sec²

∵ h = ut + 1/2 at²

∴ h = 144(2) +1/2 (-32.2 × 4) = 288 + 1/2( -128.8) = 223.6 ft

6 0
3 years ago
This problem involves the career plans of students in a biology class. Assume that the class consists of 40 percent freshmen, 10
sineoko [7]

Answer:

0.335 = 33.5% probability that the student plans to go to medical school

Step-by-step explanation:

What is the probability that the student plans to go to medical school?

Sum of:

40% of 40%(freshmen)

30% of 10%(sophomores)

35% of 30%(juniors)

20% of 20%(seniors)

So

p = 0.4*0.4 + 0.3*0.1 + 0.35*0.3 + 0.2*0.2 = 0.335

0.335 = 33.5% probability that the student plans to go to medical school

8 0
3 years ago
Mike compared the y-intercept of the graph of the function
aleksklad [387]

Answer:

  • -4

Step-by-step explanation:

<u>Given function</u>

  • f(x) = 5x + 12

From the table we get the function g(x), use pairs (1, 10) and (3, 14)

<u>The slope:</u>

  • m = (14 - 10)/(3 - 1) = 4/2 = 2

<u>The y-intercept:</u>

  • 10 = 2(1) + b
  • b = 10 - 2
  • b = 8

<u>The function g(x) is found as:</u>

  • g(x) = 2x + 8

<u>The y- intercept of f (x) is subtracted from the y-intercept of g (x):</u>

  • 8 - 12 = -4
4 0
3 years ago
Read 2 more answers
Which measurement is not equivalent to the others 6,000 mg, 6 g, 60 kg, 0.006 kg
d1i1m1o1n [39]
All of them are equal to 6 grams except for 60 kilograms (60 kg)
5 0
3 years ago
What is the slope of the line that contains the points (-2, 7) and (2, 3)?
AleksAgata [21]

Answer:

-1

Step-by-step explanation:

We can use the slope formula to find the slope

m = ( y2-y1)/(x2-x1)

    = ( 3-7)/(2- -2)

   = (3-7)/(2+2)

    = -4/4

   = -1

6 0
3 years ago
Read 2 more answers
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