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4 years ago

What is another name for an indirect proof?

Mathematics

2 answers:

Tasya [4]4 years ago

4 0

Proof by contradiction!
hope i helped

soldi70 [24.7K]4 years ago

4 0

Indirect is like sinister and proof is information. So together its sinister information or wrong info. Hope this helped

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Six friends, four boys and two girls, went to a movie theater. They wanted to sit in a way so no girl sits on either first or la

mel-nik [20]

Answer:

120 ways

Step-by-step explanation:

Since no girl wil sit either first or last

Hence, in all irrespective whether boy or girl = (6 - 1)! = 5! = 5 X 4 X 3 X 2 = 120

∴ Number of arrangements = 120 ways

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4 years ago

The image shows the magnetic field in a bar magnetic and an electromagnet

Deffense [45]

Step-by-step explanation:

the electromagnet lasts only as long as there is supply of electric current

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3 years ago

Felix scored 52 and 64 on his first two test in Sociology 212. What must he get on the third test to get an average of the three

Pie

Answer:

Felix's third test score must be greater than 94

Step-by-step explanation:

Felix scores on Sociology 212 tests:

1st test - 52

2nd test - 64

3rd test - x

Find the average of Felix's scores:

$\text{Average}=\dfrac{\text{The sum of all scores}}{\text{The total number of scores}}\\ \\\text{Average}=\dfrac{52+64+x}{3}$

An average of the three test must be above 70, this means

$\text{Average}>70\\ \\\dfrac{52+64+x}{3}>70$

Solve this inequality. First, multiply it by 3:

$52+64+x>210\\ \\x>210-52-64\\ \\x>94$

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3 years ago

- Paul wants to figure out the fuel consumption of his new SUV in the city. He made

Vesnalui [34]

Answer:

a.15.1 L/100 km; b $72.75; c. $51.34

Step-by-step explanation:

(a) Fuel consumption

Fuel used = 75 L

Distance travelled = 6096 km - 5600 km = 496 km

$\text{Fuel consumption} = \dfrac{\text{75 L}}{\text{496 km}} \times \dfrac{\text{ 100 km}}{\text{100 km}} = \dfrac{\text{15.1 L}}{\text{100 km}}$

(b) Cost to fill tank

$\text{Cost} = \text{75 L} \times \dfrac{\text{\$0.97}}{\text{1 L}} = \$72.75$

(c) Cost per week

i. Calculate the volume of gasoline

$\text{Volume} = \text{350 km} \times \dfrac{\text{75 L}}{\text{496 km}} = \text{52.9 L}$

ii. Calculate its cost

$\text{Cost} = \text{52.9 L} \times \dfrac{\text{\$0.97}}{\text{1 L}} = \$51.34$

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3 years ago

PLEASE HELP ME OUT WILL MARK BRAINLIEST

crimeas [40]

Answer:

I'm pretty sure the answer is D.

Step-by-step explanation:

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3 years ago