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alexdok [17]
3 years ago
8

(5x^2-7)-(-4x^2+6x-3)

Mathematics
1 answer:
bazaltina [42]3 years ago
5 0

Answer:

5x^2-4+4(x^2)-6x

Step-by-step explanation:

first you need to remove the unnecessary parentheses it should look like this: 5x^2-7-(4(x^2)+6x-3)

then you should calculate the sum it should look like this: 5x^2-4+4(x^2)-6x and that is your answer

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The first term of a sequence is -12. The recursive formula for the sequence is an = an-1 + 9. What are the next 3 terms in the s
Bess [88]
The next three terms are: -3, 6, and 15

To get each new term, we simply add 9 to the last term. So we add 9 to -12 to get -3. Then we add 9 to -3 to get 6. Finally we add 9 to 6 to get 15

In other words,
first term = -12
second term = first term+9 = -12+9 = -3
third term = second term + 9 = -3+9 = 6
fourth term = third term + 9 = 6+9 = 15

This process repeats forever though we only need three terms in this case.

So that's why the answer is the three values -3, 6 and 15
8 0
3 years ago
A 25 foot ladder is leaning against a tree. If the base of the ladder is 6 feet
Vera_Pavlovna [14]

9514 1404 393

Answer:

  24.3 ft

Step-by-step explanation:

If h is the height of the ladder up the tree, the geometry can be modeled as a right triangle with legs h and 6, and hypotenuse 25. The Pythagorean theorem gives you the relation ...

  h² +6² = 25²

  h² = 625 -36 = 589

  h = √589 ≈ 24.3

The ladder reaches about 24.3 feet up the tree.

4 0
3 years ago
Point O is the center of the circle. What is the value of X? <br> Answer options: 64, 54, 34, 44.
makkiz [27]

Answer:

34°

Step-by-step explanation:

The angle made when a tangent and a radius intersect=90°

Therefore angle OQP =90°

The triangle made by the two radii is isosceles ( base angles are equal) hence angle POQ=180-2(62)

=56°

The right triangle  OPQ can hence be solved as follows

angle POQ=56°

angle OQP=90°

angle x=180-(56+90)=34° as all the interior angles of any triangle add up to 180°

4 0
3 years ago
My friend told me the answer but i don't understand how she got it, can someone explain?
Dmitriy789 [7]
The explanation is rate=distance/time, so 5/3=1.66 recurring and then if you change this into a fraction form it gives you the answer
5 0
4 years ago
How are dilation different from other types of transformations?
krok68 [10]
While rotations, translations and reflexions do not alter the volume of the matter, dilation does increases the volume. 

So the answer would be, dilation increases the volume while other types of transformations do not.


4 0
3 years ago
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