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Free_Kalibri [48]
3 years ago
5

Simplify the expression. 6w+8−4w−1

Mathematics
1 answer:
IrinaVladis [17]3 years ago
4 0
Combine like terms
6w - 4w and 8 - 1
Final answer: 2w - 7
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stealth61 [152]
I used cross multiplication and got 28
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3 years ago
Which transformation was applied to ABC to transform it to DEF?
kow [346]

Answer:

So the Answer will be D.

Step-by-step explanation:

Cuz if you look it up online it will give you words or maybe links that youu shouldn't look at cuz they don't really give it to you.  It shows that ''<u>A rotation</u> turns each point on the preimage a given angle measure around a fixed point or axis. Each point on triangle ABC is rotated 45° counterclockwise around point R, the center of rotation, to form triangle DEF.'' So indee that D. is right. (I am only 11 and i am helping lol)

3 0
2 years ago
2 Points
mario62 [17]

Answer:

B and E

Step-by-step explanation:

Given the rational expression

\frac{x-7}{2x^2-32} ← factorise the denominator

2x² - 32 ← take out a common factor of 2 from each term

= 2(x² - 16) ← (x² - 16) is a difference of squares

= 2(x - 4)(x + 4)

The expression can now be written as

\frac{x-7}{2(x-4)(x+4)}

The denominator of the expression cannot be zero as this would make the expression undefined. Equating the denominator to zero and solving gives the values that x cannot be.

2(x - 4)(x + 4) = 0

Equate each factor to zero and solve for x

x - 4 = 0 ⇒ x = 4

x + 4 = 0 ⇒ x = - 4

These are the values of x that make the expression undefined.

x = 4 → B

x = - 4 → E

4 0
3 years ago
Read 2 more answers
Determine the volume of the solid that lies between planes perpendicular to the x-axis at x=0 and x=4. The cross sections perpen
OverLord2011 [107]

Answer:

Volume = 16 unit^3

Step-by-step explanation:

Given:

- Solid lies between planes x = 0 and x = 4.

- The diagonals rum from curves y = sqrt(x)  to  y = -sqrt(x)

Find:

Determine the Volume bounded.

Solution:

- First we will find the projected area of the solid on the x = 0 plane.

                              A(x) = 0.5*(diagonal)^2

- Since the diagonal run from y = sqrt(x) to y = -sqrt(x). We have,

                              A(x) = 0.5*(sqrt(x) + sqrt(x) )^2

                              A(x) = 0.5*(4x) = 2x

- Using the Area we will integrate int the direction of x from 0 to 4 too get the volume of the solid:

                              V = integral(A(x)).dx

                              V = integral(2*x).dx

                               V = x^2

- Evaluate limits 0 < x < 4:

                               V= 16 - 0 = 16 unit^3

3 0
3 years ago
The length of time the Sun is above the horizon is called the
velikii [3]
Angle of insolation.
3 0
3 years ago
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