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dmitriy555 [2]
3 years ago
14

The expression (x2 - 5x - 2) - (-6x2 - 7x - 3) is equivalent to

Mathematics
1 answer:
Margarita [4]3 years ago
6 0

Answer:

7x² + 2x + 1

Step-by-step explanation:

(x² - 5x - 2) - (-6x² - 7x - 3)

Now, combine your like-terms together...

(x² - (-6x²)) + (- 5x - (-7x)) + (- 2 - (-3))

7x² + 2x + 1

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CAN SOMEBODY HELP WITH THIS QUESTION ASAP​
tia_tia [17]

Answer:

The rectangles are not similar

Step-by-step explanation:

In order to check whether they are similar, we need to take the ratio of their similar sides and ensure they are equal to a constant k.

Hence;

AB/PL = AD/LM = k

32/26 = 18/12 = k

16/13 = 9/6 = k

Since the scale factor is not the same, hence the rectangles are not the same.

6 0
3 years ago
What is the volume of the prism below?
Tju [1.3M]
B. 75

First you find the area of the triangle:

(base x height)/2
(3 x 5)/2
15/2
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7.5 x 10 = 75
7 0
3 years ago
Select all the equations that represent functions where the range decreases as the domain increases.
taurus [48]
A, C, and E.
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3 0
3 years ago
Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.
faltersainse [42]

Answer:

V = 34,13*π   cubic units

Step-by-step explanation: See Annex

We find the common points of the two curves, solving the system of equations:

y²  = 2*x                           x = 2*y  ⇒  y = x/2

(x/2)² = 2*x

x²/4 = 2*x

x  =  2*4         x  = 8      and   y = 8/2       y = 4

Then point  P ( 8 ;  4 )

The other point Q is  Q ( 0; 0)

From these  two points, we get the integration limits for dy ( 0 , 4 )are the integration limits.

Now with the help of geogebra we have: In the annex segment ABCD is dy then

V = π *∫₀⁴ (R² - r² ) *dy   =  π *∫₀⁴ (2*y)² - (y²/2)² dy =  π * ∫₀⁴ [(4y²) - y⁴/4 ] dy

V = π * [(4/3)y³ - (1/20)y⁵] |₀⁴

V =  π * [ (4/3)*4³ - 0 - 1/20)*1024 + 0 )

V = π * [256/3  - 51,20]

V = 34,13*π   cubic units

3 0
2 years ago
Classify the solid figure.
kap26 [50]
That looks like a rectangular prism
8 0
3 years ago
Read 2 more answers
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