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Roman55 [17]
3 years ago
13

What is (a+b)(x)? Let a(x)=3x^2-5x+2 and b(x)=x^2+8x-10

Mathematics
1 answer:
agasfer [191]3 years ago
4 0

Answer:

Step-by-step explanation:

3x^2 - 5x + 2 + x^2 + 8x - 10

4x^2 + 3x - 8

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-58/105

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Julia buys 12 books. She gives 9 books away.how many books does she have left?
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This is modeled by a subtraction problem: 12 - 9

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-x + 4 = -9 Solve the equation.
Alex_Xolod [135]

Answer:

-13

Step-by-step explanation:

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6 0
2 years ago
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A line segment is divided in two​ segments, such that the ratio of the long segment to the short segment is equivalent to the go
vova2212 [387]

Answer:

9.271 inches.

Step-by-step explanation:

Let AC be the length of original line segment and point B divides it into two segments such that AB is longer and BC is smaller segment.

AB+BC=AC=15

We can describe the golden ratio as:  

\frac{AB}{BC}=\frac{AC}{AB}=1.618

\frac{AC}{AB}=1.618

\frac{15}{AB}=1.618

\frac{15}{1.618}=AB

9.270704=AB

AB=9.271

We can verify our answer as:

AB+BC=15

9.271+BC=15

9.271-9.271+BC=15-9.271

BC=5.729

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\frac{9.271}{5.729}=1.618

1.618=1.618

Hence proved.

Therefore, the length of the longer side would be 9.271 inches.

4 0
3 years ago
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