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2 years ago

6. What is the 14th partial sum for the arithmetic sequence where a1= 18 and d = 9.4?

Mathematics

2 answers:

RSB [31]2 years ago

4 0

Answer:

1107.4

Step-by-step explanation:

Took Test.

Marina86 [1]2 years ago

3 0

Answer:

Step-by-step explanation:

Its about drive its about power we stay hungry we devoure put in the work put in the power and take what's our

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Find the unit price of 8 mugs for $38.32<br> A.) $4.99<br> B.) $4.97<br> C.) $4.79<br> D.) $4.77

Anastasy [175]

Answer:

C. 4.79

Step-by-step explanation:

I divided 38.32 by 8 to find the individual prices

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2 years ago

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2 years ago

What two rational expressions sum to 3x+4/x^2-6x+5?

Lubov Fominskaja [6]

Answer:

$\frac{3x+4}{x^2-6x+5}=\frac{-7}{4(x-1)} +\frac{19}{4(x-5)}$

Step-by-step explanation:

The given rational expression is:

$\frac{3x+4}{x^{2}-6x+5} = \frac{3x+4}{(x-1)(x-5)}$

We can use concept of Partial Fractions to solve this problem. Let,

$\frac{3x+4}{(x-1)(x-5)}=\frac{A}{x-1} +\frac{B}{x-5}$

Multiplying both sides by (x - 1)(x - 5), we get:

$3x+4=A(x-5)+B(x-1)$

Substituting x = 5, we get:

$3(5)+4=A(5-5)+B(5-1)\\\\ 15+4=0+4B\\\\ 19=4B\\\\ B=\frac{19}{4}$

Substituting x = 1, we get:

$3(1)+4=A(1-5)+B(1-1)\\\\ 7=-4A\\\\ A=-\frac{7}{4}$

Substituting the value of A and B, back in the original equation, we get:

$\frac{3x+4}{x^2-6x+5}=\frac{-7}{4(x-1)} +\frac{19}{4(x-5)}$

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2 years ago

A certain line has a slope of 3/2. Select all pairs of points that may be on the line.

Marta_Voda [28]

C is the correct answer

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2 years ago

Solve this polynomial:

nadezda [96]

Answer:

4ab +10b

Step-by-step explanation:

Perhaps you want to simplify the expression.

$(2.5ab+14b)-(-1.5ab+4b)=2.5ab+14b+1.5ab-4b\\\\=ab(2.5+1.5)+b(14-4)=\boxed{4ab+10b}$

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2 years ago