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Lena [83]
3 years ago
11

Choose the expression which represents the simplest form of (-4x2)

Mathematics
1 answer:
Lelechka [254]3 years ago
7 0

Answer:

Step-by-step explanation:

No idea

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Find the slope of a line that passes through (-2,-3) and (1,1)
sasho [114]
Slope = (1+3)/(1+2)
slope = 4/3

hope that helps
3 0
3 years ago
Initially 100 milligrams of a radioactive substance was present. After 6 hours the mass had decreased by 7%. If the rate of deca
wolverine [178]

Answer:

The amount remaining after 24 hours is 17.5 milligrams.

Step-by-step explanation:

The rate of decay is proportional to the amount of the substance present at a time

The equation is

Rate=k*amount remaining at(time)

Where k = constant of proportionality.

So we don't know the value of k, let's find it.

7= k(70)(6)

K= 1/60

Amount remaining after 24 hours

7= 1/60 * x* (24)

(60*7)/24= x

17.5 = x

The amount remaining after 24 hours is 17.5 milligrams.

3 0
3 years ago
What is the sum of the complex numbers 6+5i and 8+3i2? (NOTE: −1‾‾‾√=i )
Ahat [919]

Answer:

11 + 5i

Step-by-step explanation:

6 + 5i + 8 + 3i² =

= 6 + 8 + 3(-1) + 5i

= 14 - 3 + 5i

= 11 + 5i

4 0
3 years ago
10 pecebt in simplest form
aleksandr82 [10.1K]
10%
= 10/100
= 1/10

10% in its simplest form is 1/10~
7 0
4 years ago
4[5(x + 3) - 2] + 3(x - 1)
Inessa [10]

Answer:

23x + 49

Step-by-step explanation:

4 (5x+15-2)+3x-3

subtract the numbers

4 (5x+13)+3x-3

distribute 4

20x+52+3x-3

23x+52-3

subtract

23x+49

5 0
3 years ago
Read 2 more answers
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