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aleksandrvk [35]
3 years ago
9

What is the sum of x2-3x+7 and 3x2+5x-9

Mathematics
1 answer:
Ghella [55]3 years ago
5 0
(x² - 3x + 7) + (3x² + 5x - 9)
(x² + 3x²) + (-3x + 5x) + (7 - 9)
4x² + 2x - 2
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alexira [117]

The answer would be A and C.

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5 0
3 years ago
a box of cereal contains 23.4 ounces. It cost $5.49. What is the cost,to the nearest cent, of the cereal per ounce.
anyanavicka [17]
Do 5.49 / 23.4
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5 0
3 years ago
Which of the following expressions can be used to calculate the area of a square with side lengths 5 inches?
NemiM [27]

Step-by-step explanation:

5x5

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4 0
2 years ago
Find the sum of the given vectors and illustrate geometrically. [-1,4],[6,-2]
cricket20 [7]

Answer:

The sum of vectors is <5,2>.

Step-by-step explanation:

The given vectors are <-1,4> and <6,-2>.

We need to find the sum of the given vectors and illustrate geometrically.

Plot the point (-1,4) on a coordinate plane and draw a vector <a> from (0,0) to (-1,4).

Plot the point (6,-2) on a coordinate plane and draw a vector <b> from (0,0) to (6,-2).

Now complete the parallelogram and the diagonal represents the sum of both vectors.

The end point of the diagonal is (5,2). It means sum of vectors is <5,2>.

Check the sum of vectors:

+==

Therefore, the sum of vectors is <5,2>.

4 0
3 years ago
Solve the following.<br> 2x^2-7x-4/6x^2+7x+2&lt;0<br> Can someone explain how to solve this.
oksano4ka [1.4K]

Answer:

Which one have same variable gather or decrease up

Step-by-step explanation:

2x^2-4.6x^2=1.4x^2

-7x+7x=0

1.4x^2+2<0

x<0

4 0
3 years ago
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