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Alexxx [7]
2 years ago
14

A tortoise is walking in the desert. It takes 4 minutes to walk 6.4 meters. What is its speed?

Mathematics
1 answer:
vlabodo [156]2 years ago
6 0

Step-by-step explanation:

speed= <u>distance</u>

time

speed= <u> </u><u> </u><u>6</u><u>.</u><u>4</u><u> </u>

4×60

speed= 0.026 m/s

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the koala bear is 21 inches tall. the elephant is 9 times as tall as the koala. How tall is the elephant?
Bumek [7]
9 times 21 is 189
the answer is 189 inches
6 0
3 years ago
Simplify the following expression: (5x2 + 3x + 4) − (2x2 + 5x − 1). If the final answer is written in the form Ax2 + Bx + C, wha
algol13

Answer:

A = 3

Step-by-step explanation:

Given

(5x² + 3x + 4) - (2x² + 5x - 1)

Remove the parenthesis from the first and distribute the second by - 1

= 5x² + 3x + 4 - 2x² - 5x + 1 ← collect like terms

= 3x² - 2x + 5

In the form Ax² + Bx + C

with A = 3

7 0
3 years ago
Read 2 more answers
What does the ! Mean
Alina [70]

Answer:

!  means factorial . For example 3! (factorial 3) = 3*2*1 = 6

Answer to 14C3 is 364

Step-by-step explanation:

14! = 14*13*12*11*10*9*8*7*6*5*4*3*2*1

14C3 =   14*13*12*11*10*9*8*7*6*5*4*3*2*1 / 3*2*1 * 11*10*9*8*7*6*5*4*3*2*1

=    (14*13*12) /   3*2*1

= 14*13*2

=  364

3 0
3 years ago
If 9:x = x:4, then x is 6. <br><br> true or false
Sophie [7]
We subsituete

9:6=6:4
treat as fraction
9/6=6/4

9/6=3/3 times 3/2
6/4=2/2 times 3/2

3/2=3/2
this is TRUE
7 0
3 years ago
Read 2 more answers
A triangle has an area of 45 square units. Its height is 10 units.
Degger [83]
Area = (1/2)*base*height

45 = (1/2)*base* 10

45 = base*5

45/5 = base

9 = base

base = 9

The length of the base is 9 units.
7 0
3 years ago
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