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KengaRu [80]
3 years ago
10

Please answer really need it

Mathematics
1 answer:
Darina [25.2K]3 years ago
6 0

Answer:

31200

Step-by-step explanation:

31.2*10^3

We know that 10^3 is 1 with 3 zeros = 1000

31.2 *1000

Multiplying by 1000 moves the decimal 3 places to the right

31200

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Type the missing numbers ​
Alexxandr [17]

Answer:

-5, -2, and 0

Step-by-step explanation:

7 0
2 years ago
PLZ hurry, 20 points for simple Q: Solve 5x + 1 = 2x2 + 9x.
iragen [17]
The answer is:
 
a: 1 = 2(x^2<span> + 2</span>x<span>) 
b:</span>1 = 2x^2 + 4<span>x
d:</span>3 = 2(x + 1)^2

you can tell these are your answer when you solve it.
Hope this helps!
8 0
3 years ago
Read 2 more answers
Which number is between 8.270 and 8.280
Nezavi [6.7K]

Answer:

8.275

Step-by-step explanation:

8.280 - 8.270 = 0.010

0.010/2 = 0.005

8.270 + 0.005 = 8.275

8 0
2 years ago
Consider the vector add = a + b = [13 12 11 10 10] and sub = a - b = [-11 - 6 - 14 8]. Find the vector a and b.
prisoha [69]

Answer:

a = [1   3   5   7   9] and b = [12   9   6   3   1]

Step-by-step explanation:

The addition of two vectors a and b is defined as

a + b = [13   12   11   10   10]                .... (1)

The subtraction of two vectors a and b is defined as

a - b = [-11   - 6   - 1   4    8]                 .... (2)

After adding (1) and (2), we get

(a + b) + (a - b)= [13   12   11   10   10] + [-11   - 6   - 1   4    8]

On simplification we get

2a = [13-11   12-6   11-1   10+4   10+8]

2a = [2   6   10   14   18]

Divide both sides by 2.

a = [1   3   5   7   9]

Substitute the value of vector a in equation (1).

[1   3   5   7   9] + b = [13   12   11   10   10]

Subtract vector a from both sides.

b = [13   12   11   10   10] - [1   3   5   7   9]

On simplification we get

b = [13-1   12-3   11-5   10-7   10-9]

b = [12   9   6   3   1]

Therefore the vectors a and b are defined as a = [1   3   5   7   9] and b = [12   9   6   3   1].

4 0
3 years ago
50 km into centimeter​
zubka84 [21]

Answer:

5,000,000 cm

Step-by-step explanation:

1 km=100000cm

we just multiply 50km x 100000,which we get 5 million cm

5 0
3 years ago
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