3 years ago

Question 1 of 10

Mathematics

1 answer:

irga5000 [103]3 years ago

6 0

Answer:

1,3,7,21

Step-by-step explanation:

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Please help! How much is 840 miles in 3 & 1/2 hours?

Ilia_Sergeevich [38]

I'm assuming your teacher wants you to calculate the speed

1/2 = 0.5

3 & 1/2 = 3 + 1/2 = 3 + 0.5 = 3.5

If a plane flies 840 miles in 3.5 hours, then,

speed = distance/time

speed = (840 mi)/(3.5 hr)

speed = (840/3.5) mph

speed = 240 mph

<h3>Answer: 240 mph</h3>

7 0

3 years ago

what is the image of the point (-2,7) after a rotation of 180 degrees counterclockwise about the origin?

andre [41]

Answer:

(- 7, - 5 )

Step-by-step explanation:

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3 years ago

24 divided by [(6 divided by 2) - (4 divided by 2)

Ilya [14]

Answer:

Im pretty sure the answer is 6

Step-by-step explanation:

Leave the 24 aside for a sec. Focus on the 6÷2 and 4÷2. 6 divided by 2 is 3. And 4 divided by 2 is 2. So now its 24÷3= 8

8-2=6

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3 years ago

How do you solve 2x-5=11?

Slav-nsk [51]

2x-5=11
2x-5+5=11+5
2x=16
x=16/2
x=8

6 0

3 years ago

Find the indicated quantities for y equals f (x )equals 3 x squared. (A) Simplify StartFraction f (3 plus Upper Delta x )minus

torisob [31]

Answer:

Step-by-step explanation:

Given that a function f(x) is given as

$y=f(x) = 3x^2$

A) $f(x+ \Delta x) = 3((x+ \Delta x)^2=3(x^2+2x \Delta x+\Delta x^2)\\f(x) = 3x^2\\f(x+ \Delta x) -f(x) = 6x \Delta x +\Delta x^2$

Now divide by delta x

$\frac{f(x+ \Delta x) -f(x)}{\Delta x}\\=6x+\Delta x$

B) When delta x tends to 0, this becomes

$6x$

(NOte: This is the derivative of f(x))

5 0

4 years ago