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Sonbull [250]
3 years ago
7

Factor the expression completely: 2x² + 5x - 12

Mathematics
2 answers:
Finger [1]3 years ago
7 0
Using the slip and slide method:

2x^2+5x-12
x^2+5x-24
(x+8)(x-3)

(x+8/2)(x-3/2)
(x+4)(2x-3)

Final answer: (2x-3)(x+4)
EastWind [94]3 years ago
6 0
See attached picture for the answer:

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Please help I really need your help
Amanda [17]

Answer:

1.  1200 \ kg/m^3

2.

a)

35 cm = 0.35 meters

11 dm = 1.1 meters

15 mm = 0.015 meters

b)

Volume = 0.005775 cubic meters

Mass = 15.5925 kilograms

Step-by-step explanation:

1.

We know

Density = Mass/Volume

Given

Mass = 90 kg

Volume = 0.075 cubic meters

The SI unit for density is kilograms per cubic meters. Our dimensions are just that, so we just need to plug in the numbers into the formula and get our answer. Shown below:

Density = \frac{90}{0.075}=1200 \ kg/m^3

The Density of asphalt block = 1200 \ kg/m^3

2.

a)

We need to express 35cm, 11dm, and 15mm in meters

We know

100 cm = 1 meters, so

35 cm = 35/100 = 0.35 meters

We know 1 dm = 0.1 meters, so

11 dm * 0.1 = 1.1 meters

We know, 1mm = 0.001 meters, so

15 mm * 0.001 = 0.015 meters

b)

Volume of the Slab is length * width * height, in meters, that would be:

Volume = 0.35 * 1.1 * 0.015 = 0.005775 cubic meters

THe mass would be found by the formula:

Density = Mass/Volume

2700 = Mass/0.005775

Mass = 0.005775 * 2700 =  15.5925 kilograms

5 0
3 years ago
What is the length of AD, in centimeters?
LekaFEV [45]

Answer:

AD=2

Step-by-step explanation:

\frac{6}{12} =\frac{AB}{20} \\AB=\frac{6}{12} \times 20=10\\AD+DF+FB=10\\AD+6+FB=10\\AD+FB=10-6=4\\AD+AD=4 ( \because ~FB=AD )\\2AD=4\\AD=4/2=2

8 0
3 years ago
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DerKrebs [107]
0.19992 because u need to times the digits
3 0
3 years ago
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help with these all no links- I MEAN IT! and no oh i just came for the points cr_ap brainlyest if correct
natka813 [3]

Answer:

#1

  • Least value = 5

#2

  • Median = 56, option C

#3

  • Median = 113, option C

#4

  • A = 10, the minimum point

#5

  • Q1 = 99.5, the median of the lower half of data, option C
7 0
2 years ago
given the table of values below, which of the following ordered pairs are found on the graph of the inverse function?
Leviafan [203]

Answer:

Step-by-step explanation:

what was the answer?

3 0
3 years ago
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