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Tema [17]
4 years ago
12

1,78 scientific notation

Mathematics
1 answer:
pychu [463]4 years ago
6 0
The answer is 7.8 x 10^4
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Can some one help me on this and thank u
atroni [7]

Answer:

2<x<3

Step-by-step explanation:

the first one

5 0
3 years ago
Find the missing number:
Makovka662 [10]

Answer:

20%

Step-by-step explanation:

If you see they say that the number decreased is 10% each and they say it two times. we could see that the missing number is as big as the length of two 10% together, so if you add them two you get 20%.

7 0
3 years ago
Which is the standard form for this number?
netineya [11]

Step-by-step explanation:

To make it easy to read very large and small numbers, we write them in standard form. Any number that we can write as a decimal number, between 1.0 and 10.0, multiplied by a power of 10, is said to be in standard form. 1.98 ✕ 10¹³; 0.76 ✕ 10¹³ are examples of numbers in standard form.

3 0
3 years ago
Belinda walks 10 minutes on the first day and plans to increase the number of minutes by 2 minutes each day.How many will Belind
Korolek [52]

Answer:

24 minutes

Step-by-step explanation:

This can be explained with the equation y=2x+10 (I chose 2 arbritrary variables, any are acceptable). A week is equivalent to 7 days so x=10. Plug this into the equation and you end up with 24, because 2(7)+10=24

8 0
3 years ago
Construct a truth table for proposition (¬p)\rightarrowq
Sergio [31]

Answer:

\left[\begin{array}{ccc}(-p)&--->&q\\f&t&t\\f&t&t\\t&t&f\\t&f&f\end{array}\right]

Step-by-step explanation:

First, we find all the possibilities for p and q in a table:

p  q

t    t

t    f

f    t

f    f

then -p:

-p  q

f    t

f    f

t    t

t    f

and we apply the operator --> (rightarrow), that is only f (false) y if the first one is t (true) and the second one is f (false)

-p    --->    q

f       t       t

f       t       f

t       t       t

t       f       f

5 0
4 years ago
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