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2 years ago

I hope this I better than the blurry photo I took '-'

Mathematics

1 answer:

Black_prince [1.1K]2 years ago

7 0

Answer:The fourth option

decreases by 1 minute every 2 hours trained

Step-by-step explanation:

If y is how much it decreses its negative, and if the slope is -1/2 then they decrease by one for every 2 hours since the two represents x.

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I'm confused with this problem for geometry, help!

anastassius [24]

Answer:

x=3

Step-by-step explanation:

all work is shown and pictured

7 0

3 years ago

Alex is saving money because she would like to purchase the new video gaming system that everyone has been talking about. After

ivanzaharov [21]

two weeks = 47 47/2 = 23.5 every week

24 weeks = 430 430/24= about 17.9 every week

She save from about $17.9 to $23.5

(not sure I did it right. Hope I helped :))

7 0

3 years ago

Read 2 more answers

Expand (2 + a)9 using Pascal’s triangle.

Natalija [7]

Answer:

Step-by-step explanation:

The Pascal triangle is used to determine the coefficients of the terms when we expand the expression.

1 $(A + B) ^ 0$ = 1

1 1 $(A +B ) ^ 1 = 1A + 1B$

1 2 1 $(A+ B) ^ 2 = 1A^2 + 2 AB + 1B^2$

By extending the triangle, you will get the 9th row, which is your expression, of the coefficients. that is

1 9 36 84 126 126 84 36 9 1

Now, fill in AB in the gaps.

1AB + 9 AB + 36AB + 84AB + 126AB + 126AB +84AB + 36AB + 9AB + 1AB

Next, you need to go from the left to fill out the exponent of A and it will go down from 9 (the exponent of the whole thing) . That is

$1A^9B+9A^8B+36A^7B+84A^6B+126A^5B+126A^4B+84A^3B+36A^2B+9A^1B+1A^0B$

Next will be the exponent of B. this time, you go from the right and do the same with A. You can go from the left also, but go up from 0 to 9 for the exponent of B

$1A^9B^0+9A^8B^1+36A^7B^2+84A^6B^3+126A^5B^4+126A^4B^5+84A^3B^6+36A^2B^7+9A^1B^8+1A^0B^9$

The last step is just to simplify the A^0=1 and B^0 =1 at the first and the last terms.

$A^9+9A^8B^1+36A^7B^2+84A^6B^3+126A^5B^4+126A^4B^5+84A^3B^6+36A^2B^7+9A^1B^8+B^9$

Hope you can learn the method

5 0

2 years ago

I need to answer the two questions at the bottom please help.

Nookie1986 [14]

1st question

$23,760-(4000+6000)=$13,760
$13,760 x 4%=$ 550.40

2nd question

$43,300-(2000+2000)= $39,300
$39,300 x 5%= $1,965

5 0

3 years ago

V = r + at, solve for a

erica [24]

$V = r + at\\\\
at=V-r\\\\
a=\dfrac{V-r}{t}$

8 0

2 years ago

I hope this I better than the blurry photo I took '-'​

I hope this I better than the blurry photo I took '-'