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Sav [38]
3 years ago
14

Evaluate the following expression. 1/5^-2

Mathematics
2 answers:
SpyIntel [72]3 years ago
8 0

Answer:

the answer is 1/25

Step-by-step explanation:

blsea [12.9K]3 years ago
4 0

Hola User______

Here IS YOUR Answers...!!!

_______________

↪The squaring of the number ..

↪(-1/5)^2 = 1/25

↪thus the answer is 1/25

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A company will make a cereal box with whole number dimensions and a volume of 100 cubic centimeters. if carboard cost $0.05 per
Lelu [443]
Possible dimension of a box with a volume of 100 cubic cm
10 x 10 x 1 = 100
10 x 5 x 2 = 100
5 x 5 x 4 = 100

Surface area:
10 x 10 x 1 dimensions: 
10 x 10 = 100 x 2 = 200 sq.cm
10 x 1 = 10 x 4 = 40 sq. cm
240 sq. cm * $0.05 / 100 sq.cm = $0.12 per box
0.12 per box * 100 boxes = $12

10 x 5 x 2 dimension
10 x 5 = 50 x 2 = 100 sq. cm
10 x 2 = 20 x 2 = 40 sq. cm
5 x 2 = 10 x 2 = 20 sq. cm
160 sq. cm * $0.05/100 sq. cm = $0. 08 per box
0.08 per box * 100 boxes = $8

5 x 5 x 4 dimension
5 x 5 = 25 x 2 = 50 sq. cm
5 x 4 = 20 x 4 = 80 sq. cm
130 sq. cm * $0.05/100 sq. cm = $0.065 per box
0.065 per box * 100 boxes = $6.50

The best dimension to use to have the least cost to make 100 boxes is 5 x 5 x 4. It only costs $6.50 to make 100 boxes.
8 0
3 years ago
A coral reef grew 3000 millimeters taller. How much did it grow in meters?
ANTONII [103]
3 meters equals 3000 mm
3 0
3 years ago
from a window 24 feet above the ground, the angle of elevation to the top of another building is 38 degrees. The distance betwee
Delvig [45]

Answer:

The  height of the building is 73.2\ ft

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

In the right triangle ABC

tan(38\°)=\frac{BC}{AB}

we have

AB=63\ ft

substitute and solve for BC

tan(38\°)=\frac{BC}{63}

BC=(63)tan(38\°)=49.2\ ft

Find the height of the building

The  height of the building (h) is equal to

h=BC+24=49.2+24=73.2\ ft

6 0
3 years ago
A stock's value was projected to close at $400. The stock actually closed at a value of $328. What is the percent error of the s
Oxana [17]

Answer:

A is the answer its 18 percent off

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
If 2X +1= 27,032 is true then 2x+3= ?
maxonik [38]
2x+1=27032
2x=27031
x=13515.5

2x+3
=2(13515.5)+3
=27034
6 0
3 years ago
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