2 years ago

We know that Martin is buying some apples at $0.75 each and two dozen oranges

1 answer:

8 0

Step-by-step explanation:

0.75a + 2(0.90) = 27.60

is the correct answer

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yanalaym [24]

B? 

1 2/3 ÷ 1 1/9 = 1.5

2.34 ÷ 0.6 = 3.9

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3 years ago

Natasha_Volkova [10]

3/8 times 2/5 is 6/40 or 0.15. Just multiply straight across

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3 years ago

oee [108]

The brain is the control center of the nervous system.

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3 years ago

Elodia [21]

What equation are you suppose to solve in your question?

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3 years ago

Step2247 [10]

Answer:

Remember, the expansion of $(x+y)^n$ is $(x+y)^n=\sum_{k=0}^n \binom{n}{k}x^{n-k}y^k$ , where $\binom{n}{k}=\frac{n!}{(n-k)!k!}$ .

Then,

$(5p+2q)^6=\sum_{k=0}^6\binom{6}{k}(5p)^{6-k}(2q)^k=\sum_{k=0}^6\binom{6}{k}5^{6-k}2^k p^{6-k}q^k$

Then, the coefficient of the term $p^{6-k}q^k$ is $\binom{6}{k}5^{6-k}2^k$

a) since 6-k=2, then k=4. So the coefficient of $p^2q^4$ is

$\binom{6}{4}5^{6-4}2^4=15*5^2*2^4=15*25*16=6000$

b) since 6-k=5, then k=1. So, the coefficient of $p^5q$ is

$\binom{6}{1}5^{6-1}2^1=6*5^5*2=37500$

c) since 6-k=3, then k=3. So, the coefficient of $p^3q^3$ is

$\binom{6}{3}5^{6-3}2^3=20*5^3*8=20000$

6 0

3 years ago