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vfiekz [6]
3 years ago
8

Emma has a gift box in the shape of a cube. Each side of the box measures 9 centimeters. What is the volume of the gift box?

Mathematics
1 answer:
BARSIC [14]3 years ago
3 0

Answer:

729

Step-by-step explanation:

Each side of the cube measures 9cm

The volume of a cube is V^3

Therefore the volume can be calculated as follows

= 9^3

= 729

Hence the volume is 729

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Two trains are 500 miles apart when they first enter a collision course. If, after two hours, the distance between them is 300 m
MrRissso [65]

Answer:

The faster train goes 60mph

Step-by-step explanation:

s= speed

s+20 is the faster train.

Then you are given:

200/s+s+20=2

200=2*(2s+20)

4s+40=200

4s=160

s=40 is the slower train

40+20= speed of faster one

s=60 ;)

6 0
3 years ago
HELP PLEASE WILL CROWN BRAINLIEST!!
liubo4ka [24]

Answer:

-18 C°

Step-by-step explanation:

Warmed means add cooled means subtract

starting at -23 it warmed by 8 add 8

-15

it warmed by 3 more add 3

-12

then it cooled by 6 subtract 6

-18

8 0
2 years ago
If a quadratic equation has 4-i as a solution, what must the other solution be?
Luden [163]

Answer:

4+i

Step-by-step explanation:

A complex number usually took the form a+bi where a and b are real numbers and 'i' represents an imaginary number. For a quadratic equation, the complex roots for the root of a quadratic equation took the form known as complex conjugates. The complex conjugates are formed by changing the sign of the imaginary part.

SO, if a quadratic equation has 4-i as a solution, the other solution must be 4+i.

6 0
3 years ago
Which question can be answered by finding 212÷23? A. How many 23-meter long pieces of ribbon are needed to have a total of 212 m
SOVA2 [1]
The correct answer is the letter A because a division problem shows a total amount being broken into equal parts.

Choice a talks about how many parts it would take to get the total of 212 m of ribbon.

This choice includes the parts and total information.
3 0
3 years ago
Read 2 more answers
In how many ways can 3 Americans, 4 Frenchmen, 4 Danes and 2 Italians be seated in a row so that those of the same nationality s
kaheart [24]
Answer (13 of the original arrangements are duplicates now, as AAAF F F FDDDDCC, AAF F F FDDDDCCA, ..., CAAAF F F FDDDDC are identical): 900900/13 = 69300.
4 0
3 years ago
Read 2 more answers
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