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2 years ago

Which function is a linear function?

Mathematics

1 answer:

Xelga [282]2 years ago

3 0

Answer:

A.f(x)=x3+x

Step-by-step explanation:

. A linear function has the following form. y = f(x) = a + bx.

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Im stuck on this one

nika2105 [10]

ABC is a right triangle, so by Pythagoras' theorem,

$AB^2+AC^2=BC^2\implies BC=\sqrt{4^2+9^2}=\sqrt{97}$

Then by the law of sines,

$\dfrac{\sin A}{BC}=\dfrac{\sin C}{AB}\iff\dfrac1{\sqrt{97}}=\dfrac{\sin C}4\implies\sin C=\dfrac4{\sqrt{97}}$

$\implies C=\sin^{-1}\dfrac4{\sqrt{97}}\approx24^\circ$

5 0

2 years ago

A motorboat traveling with a current can go 120 km in 4 hours. Against the current, it takes 6 hours to go the same distance. Fi

Aleks04 [339]

Answer: Speed of motorboat= 25 km hr

Speed of current= 5km hr

Step-by-step explanation:

120/4= speed of motorboat with the current

120/6= speed of motorboat against the current

Get the average of those 2 numbers.

Motorboat=25 km hr

Speed of current= 5 km hr

8 0

3 years ago

Please look below for the question :)

rewona [7]

Answer:

well i think its over 103.10 because 11 months divide 2 fraction then take 1 carry or instead use calculator and type 0077239812 this binary!! and divide by 23 and thats the answer its only like decimals from the point!!

Step-by-step explanation:

Does this help?

5 0

2 years ago

Read 2 more answers

Two brothers, richard and andrew, share a sum £30 in the ratio 3:7. how much does each brother get?

Elina [12.6K]

Answer:

£9,£21

Step-by-step explanation:

richard:andrew=3:7

3+7=10

£30÷10=£3

richard=3×£3=£9

andrew=7×£3=£21

5 0

2 years ago

Read 2 more answers

A train moving at a speed of 75 km/hr covers a certain distance in 4.8 hours.

kakasveta [241]

Answer:

Step-by-step explanation:

Distance=Speed×Time

75×4.8=360

Speed=distance÷time

360÷3=120km/h

6 0

3 years ago