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3 years ago

B.

Mathematics

1 answer:

Anna35 [415]3 years ago

7 0

Dhsjsj you have got the akf3 over 5

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The average of the weights of six people sitting in a boar is 145 pounds. After a seventh person gets into the boat, the average

Tems11 [23]

Weight : 

⇒ x for 6 people
⇒ y for the 7th person

$x/6=145 \\ (x+y)/6=147 \\ \\ x=145*6 \\ x=870 \\ \\ x+y=1029 \\ \\ 870+y=1029 \\ y=1029-870 \\ y=159$

The correct answer is B).

5 0

3 years ago

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I literally forgot how to do this plz help ASAP

tekilochka [14]

Answer:

3/8

Step-by-step explanation:

3/10 ÷ 4/5

Copy dot flip

3/10 * 5/4

Rewriting

3 /4 * 5/10

3/4 *1/2

3/8

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3 years ago

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Find the distance (-2, 1) and (4,3)

natima [27]

Answer:

$2\sqrt{10}$ units

Step-by-step explanation:

The distance formula states that $D(x_{1} ,y_{1})(x_{2},y_{2} )=\sqrt{(x_{2} } -x_{1} )^2+(y_{2}-y_{1} )^2\\$ .

We then plug in our points and compute. $\sqrt{(4-(-2))^2+(3-1)^2} =\sqrt{6^2+2^2} =\sqrt{36+4} =\sqrt{40} =\sqrt{2^2*2*5} =2*\sqrt{2*5} =2\sqrt{10}$

The * represents multiplication.

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3 years ago

A website charges $3 for each movie you download. They also charge a one-time sign-up fee of $14.99.

Igoryamba

I am sorry, but nobody can help until you put the question. Assuming it is Algebra, I can write this as function which would be y = 3x + 14.99 . Also, x has to be greather than zero because you cannot undownload a movie. y can also be something like f (m). m means the movies you downloaded. So it could also be f = 3m + 14.99 . If you want to graph it, I could do it for you.

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4 years ago

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Solve for x. x^2 + 4x + 4 = 8

Lerok [7]

Answer:

Work:

x^2 + 4x - 4 = 8

x^2 +4x -12 = 0

(x + 6) (x - 2) = 0

x = -6 and 2

Answer: first option

I hope this helps!

Step-by-step explanation:

did this on edge :)

hope this helps ~ xoxo ANGIEEE CRAZZZY :3

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3 years ago