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nydimaria [60]
1 year ago
7

Subtract-3x - 8 from 4x² - 7x - 2.

Mathematics
1 answer:
allsm [11]1 year ago
3 0

( {4x}^{2}  - 7x - 2) - (3x - 8) \\  \\  {4x}^{2}  - 7x - 2 - 3x + 8 \\  \\  {4x}^{2}  - 10x + 4.

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Firlakuza [10]

Answer:oh goodness

Step-by-step explanation:

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3 years ago
-2=k. 2 = k·1=k<br> Solve the equation.<br> Enter your answer in the box.<br> k=
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Answer:

k=-1

Step-by-step explanation:

-2=k. 2

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An equilateral triangle with a side length of 6mm and a height of 5.2mm is divided vertically into halves. Find the area of one
Viefleur [7K]

There are two ways you could go about solving this.

You could divide the length of the base (6mm) by 2 and use that to find the area or you could find the area of the whole triangle using 6mm and divide that by 2.

I will use the first method I described:

base = 6/2

base = 3 mm

height = 5.2 mm

area = bh/2

area = (3 * 5.2)/2

area = 7.8 square mm

(don't forget your units)


Using the other method would look like this:

area = bh/2

b = 6

h = 5.2

area = (6 * 5.2)/2

area = 15.6 square mm

area/2 = 7.8 square mm


As you can see either method yields the same result.

Hope this helped.

Cheers and good luck,

Brian

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Zena used a probability simulator to roll a 12-sided number cube 100 times. Her results are shown in the table below:
viktelen [127]
100 over 82 or 18 over 100
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Read 2 more answers
In a survey at a local university, 38% of students say that they get less than the recommended eight hours of sleep per night in
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Answer:

2790

Step-by-step explanation:

38/100 * 4500 = 1710 get less than eight hours of sleep

4500 - 1710 = 2790 students

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3 years ago
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