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777dan777 [17]
2 years ago
11

I need help! I’m not good at math and I don’t know how to do this

Mathematics
1 answer:
-Dominant- [34]2 years ago
7 0

Answer:

$56.875

Step-by-step explanation:

Given the following data;

Rate = $8.75 per hour

Number of time worked = 6.5 hours

To find the total amount earned;

Total amount = rate * time

Total amount = 8.75 * 6.5

Total amount = $56.875

Therefore, Marcus earned $56.875 last week.

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What is the coefficient of the third term in the binomial expansion of (a + b)6? 1 15 20 90
Sholpan [36]

Answer:  15

Step-by-step explanation:

(r+1)th term of (a+b)^n is given by:-

T_{r+1}=\ ^nC_r(a)^{n-r}b^r

For (a+b)^6 , n= 6

T_3=T_{2+1}=\ ^6C_2(a)^{6-2}(b)^2\\\\

=\ \dfrac{6!}{4!2!}a^4b^2\ \ \ [^nC_r=\dfrac{n!}{r!(n-r)!}]\\\\=\dfrac{6\times5\times4!}{4!\times2}a^4b^2\\\\=3\times5a^4b^2\\\\ =15a^4b^2

Hence, the coefficient of the third term in the binomial expansion of  (a+b)^6 is 15.

3 0
3 years ago
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konstantin123 [22]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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ExtremeBDS [4]

Answer:

Length: 20 or 40 feet

Width: 40 or 20 feet

Step-by-step explanation:

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Or x = 40

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hichkok12 [17]

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Jonah has a recipe that uses 1 1/2 cups of brown sugar and 2 1/3 cups of flour. Jonah wants to use all of his flour to make as m
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Step-by-step explanation:

8 0
3 years ago
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