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Nitella [24]
3 years ago
13

Có ai biết làm toán cao cấp 2 phần đại học ko , help me:((

Mathematics
1 answer:
Viefleur [7K]3 years ago
5 0

Answer: Sorry i only speak english

Step-by-step explanation:

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Given the following exponential function, identify whether the change
kodGreya [7K]

It shows a change in growth, and has a percentage rate that is positive, I .

7 0
3 years ago
Please answer I’m desperate
svlad2 [7]

Answer:

the square root of 20 could be between 4 and 5 OR -4 and -5.

Step-by-step explanation:

plus or minus 4 squared is 16 and plus or minus 5 squared is 25. finally, 20 is between 16 and 25.

4 0
3 years ago
If<br> 21 = 42<br> 39 = 618<br> 17 = 214<br> then what does<br> 45 = ?
Brums [2.3K]

Answer:

810

Step-by-step explanation:

21 = 42

Decode:

Number in the tens place = 2 x 2 = 4

Number in the ones place = 1 x 2 = 2

Answer: 42

39 = 618

Decode:

Number in the tens place = 3 x 2 = 6

Number in the ones place = 9 x 2 = 18

Answer: 618

17 = 214

Decode:

Number in the tens place = 1 x 2 = 2

Number in the ones place = 7 x 2 = 14

Answer: 214

Find 45

Number in the tens place = 4 x 2 = 8

Number in the ones place = 5 x 2 = 10

Answer: 810

3 0
3 years ago
I really need the answers for these I don't understand this
Yuri [45]
I tryed my best to figure out what all of the numbers were. if i got any wrong then please tell me and i will put the right answer in the comments.

1) 3/5= 5/x   (cross multiply)
     3x=5(5)
     3x=25
       x= 25/3 -or- 8.33

2) 2/4=x/12<span>   (cross multiply</span><span>)
</span> 2(12)=4x
     24=4x
       6=x
3) 10/x=5/9<span>   (cross multiply</span><span>)
   10(9)=5x
       90=5x
       18=x
4) 5/5=x/18</span><span>   (cross multiply</span><span>)
 5(18)=18x
     90=18x
       5=x</span>
8 0
3 years ago
6 (x+15) evaluate the expression for x=-4
Gala2k [10]
The answer would be 66.

6(-4 +15)
=
66
4 0
3 years ago
Read 2 more answers
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