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3 years ago

DISJUNCTIONS

Mathematics

2 answers:

Vladimir [108]3 years ago

8 0

I would say TF - T. So, truth false thruth.

Vikentia [17]3 years ago

8 0

Its T T - T, they're both true

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Please help solve this question

Rasek [7]

95141 1404 393

Answer:

arc BC: 8.55 cm
chord BC: 8.03 cm

Step-by-step explanation:

The length of an arc that subtends central angle α will be ...

s = rα . . . . where α is in radians

The central angle BOC is twice the measure of angle QBC, so is 70°, or 7π/18 radians. So, the length of arc BC is ...

s = (7 cm)(7π/18) ≈ 8.55 cm . . . arc BC

For central angle α and radius r, the chord subtending the arc is ...

c = 2r·sin(α/2)

c = 2(7 cm)sin(35°) ≈ 8.03 cm . . . . chord AB

5 0

2 years ago

One pipe fills a barrel in 1 hour while another pipe can fill the same barrel in 2 hours. How many minutes will it take to fill

givi [52]

It will take 2/3 hour or 40 minutes to fill the tank if both pipes are used.

Let pi be pipe 1 and pi2 be pipe 2

pi = 1 / 1

pi2 = 1 / 2

together = 1/1 + 1/2 ;

3/2 time ; 2/3 hour.

It will take 2/3 hour or 40 minutes to fill the tank if both pipes are used.

Problem-solving is the act of defining a problem; figuring out the motive of the problem; identifying, prioritizing, and deciding on alternatives for a solution; and implementing an answer.

Learn more about Problem-solving here: brainly.com/question/13818690

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7 0

1 year ago

How do you use a number line with ratios?

Natalija [7]

Answer:

act as if the ratio is a fraction 4:3 would be 4/3..

Step-by-step explanation:

5 0

2 years ago

Which graph shows the system of equations 4x+y = 3 and 2x-3y = 3?<br>

jarptica [38.1K]

Answer:

red line is 4x+y=3 and blue line is 2x-3y=3

Step-by-step explanation:

7 0

2 years ago

Roberto has a sample of an unknown liquid. The label in the bottle of the sample indicates that the liquid has a mass of 117 gra

Tomtit [17]

Answer:

It is Milk

Step-by-step explanation:

The liquid in the bottle has mass given in grams and the mass of that substance is 117 grams.

The volume of the substance is 15 cubic centimeters.

Now, using the formula of density we can estimate which substance could it be.

$d=\frac{m}{v}$ , where 'd', is the density, 'm' is the mass, and 'v' is the volume of the substance.

Plugging the value of mass and volume we get:

$d=\frac{117}{15} =7.8g/cm^3$

So the density of the substance is 7.8 grams per cubic centimeter.

It cannot be water since the density of water is 1 grams per cubic centimeter.

It cannot be gasoline because its density is 0.77 grams per cubic centimeter.

It cannot be mercury because the density of mercury is 13.56 grams per cubic centimeter.

Since, the density in this case matches the density of thick milk and hence,therefore, the liquid in the bottle is milk.

7 0

3 years ago