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Elodia [21]
3 years ago
7

Simplify -8 - 1 + 4 x 2

Mathematics
1 answer:
asambeis [7]3 years ago
6 0
So you would use GEMDAS or PEMDAS 
-8-1+4x2
-8-1+8
-9+8
  -1
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There are (4^9)^5 ⋅ 4^0 books at the library. What is the total number of books at the library?
Sidana [21]
(4^9)^5 \cdot 4^0=4^{9*5} \cdot 1=4^{45}
3 0
3 years ago
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
HEEELP Chose the correct answer:
photoshop1234 [79]

Answer:

8x-8

Step-by-step explanation:

if Lana is X year

then that makes Yan 3X-4

the father is twice the sum of their ages

3X-4+X=4X-4

the father being twice

his age should be

8X-8

4 0
3 years ago
A rectangle has a length two more than seven times the width. If the perimeter is 52 units, find the width and length.
motikmotik
Length- 19,19
Width- 14,14

I’m not so sure but I think that right
3 0
3 years ago
( PLEASE HELP) The points (3,-2) (-3,-2) and (-3,6) are the vertices of a triangle. Find the perimeter of the triangle. (Hint: U
True [87]
Look at the picture.

x^2=6^2+8^2\\\\x^2=36+64\\\\x^2=100\to x=\sqrt{100}\to x=10

The perimeter of the triangle:

P_\Delta=6+8+10=24

6 0
2 years ago
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