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notsponge [240]
2 years ago
10

Please help me out on this problem

Mathematics
1 answer:
givi [52]2 years ago
5 0

Answer:

-3

Step-by-step explanation:

First step to this is to replace the variables with their coordinated values. Remember to use parentheses.

4(2)-2(2+4)+1=?

We can start to simplify.

4(2)-2(6)+1

Then---

8-12+1

-4+1

Final Answer (-3)

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Please help!!!!! It's urgent
Evgesh-ka [11]
       2b                     2a
----------------- +  -----------------
   (b+a)^2            (b^2 - a^2)

            2b                     2a
= ----------------- +  -------------------
      (b+a)(b+a)         (b+a)(b-a)

         2b(b - a) +  2a(b + a)
= ------------------------------------
           (b+a)(b+a)(b-a)


         2b^2 - 2ab  +  2ab + 2a^2
= ---------------------------------------
           (b+a)(b+a)(b-a)

         2b^2 + 2a^2
= ------------------------
        (b+a)(b+a)(b-a)

         2(b^2 + a^2)
= ------------------------
        (b+a)^2 (b-a)

Answer:

Numerator:        2(b^2 + a^2)
Denominator:    (b+a)^2 (b-a)
7 0
3 years ago
An 8-foot ladder leans against a wall and makes a 53° angle with the wall. Which is closest to the distance up the wall the ladd
kenny6666 [7]

Answer:

The ladder reaches 4.8 ft up the wall

Step-by-step explanation:

3 0
3 years ago
A rabbit hopped 1.5 ft as a mouse scurried 18 inches. What is the difference in the distance the two animals traveled? Give your
tino4ka555 [31]
Hey You!

1.5 ft = 18 inches

There is no difference between the distance the two animals traveled.
6 0
3 years ago
Read 2 more answers
the surface area of a square pyramid is 84 square inches. the side length of the base is 6 inches. what is the value of x?
Sladkaya [172]
The formula is(V=B•h)(84•6)
8 0
3 years ago
The directrix of a parabola is y=−4y=−4 . The focus of the parabola is (−2,−2)(−2,−2) .
salantis [7]
Refer to the diagram shown below.

The directrix is y = -4 and the focus is (-2, -2).
Therefore the vertex is at (-2, -3).

Consider an arbitrary point (x,y) on the parabola.
The square of distance from the focus to the point is
(x+2)² + (y+2)²
The square of the distance from the point to the directrix is
(y+4)²

Therefore
(y+4)² = (y+2)² + (x+2)²
y² + 8y + 16 = y² + 4y + 4 + (x+2)²
4y = (x+2)² - 12
y = (1/4)(x+2)² - 3

Answer: y =  \frac{1}{4} (x+2)^{2} - 3

6 0
2 years ago
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