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Fynjy0 [20]
3 years ago
6

Which expression is equivalent to 4x^-2+3x^-5?

Mathematics
1 answer:
kari74 [83]3 years ago
7 0

Answer:

7x^-7, that is the answer

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Jemima receives £5 pocket money
Lorico [155]

Answer:

51% of the money was spent, that is, 51/100. In conclusion, Jemina still has 49/100 of the money available.

Step-by-step explanation:

Since Jemima received $ 5 in pocket money, and spent $ 1.75 on a magazine and $ 0.80 on a drink, to determine the proportion of money he spent and the proportion he has left, the following calculation must be performed:

5 - (1.75 + 0.80) = X

5 - 2.55 = X

2.45 = X

5 = 100

2.55 = X

(2.55 x 100) / 5 = X

255/5 = X

51 = X

Therefore, 51% of the money was spent, that is, 51/100. In conclusion, Jemina still has 49/100 of the money available.

7 0
3 years ago
Solve the equation 8x^3+4x^2-18x-9= 0 algebraically for all values of x
solniwko [45]
4x^2(2x+1)-9(2x+1)=0
(4x^2-9)(2x+1)=0
(2x-3)(2x+3)(2x+1)=0
6 0
3 years ago
can someone give me the answers ( the answers are on the last page of the worksheet but like I have no idea how to do the work)
astraxan [27]

Answer:

Step-by-step explanation:

-8-4v=40 add 8 to both sides

-4v=32 divide both sides by -4

v= -8

3v+2v=25

5v=25  divide both sides by 5

v=5

x/2 - 8 = -14 add 8 to both sides

x/2= - 6

-6 * 2= -12

check

-12/2-8=-14

-6-8=-14

-14= -14

-6+n/3= -3 add 6 to both sides

n/3=3

3*3=9

check

-6+9= -3

-3 = -3

5 0
3 years ago
Find the total area of the figure below. Take a = 3.14
irga5000 [103]

Answer:

Step-by-step explanation:

or 3.14. • Circumference of a circle of radius r is 2πr,. • Area of a circle of ... Total area covered by both the paths ... If AE. = 8 cm and AD = 5 cm, find the perimeter of the rectangle. Solution: ... 1. Observe the shapes 1, 2, 3 and 4 in the figures. Which of the following ... The square below has been divided into four rectangles.

6 0
3 years ago
Please explain what I need to do 20 points
maxonik [38]

Answer:

look at the graph and solve it

6 0
4 years ago
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