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1. 4e22 in scientific notation

2. 2.9e-33 in scientific notation

Step-by-step explanation:

4×10^22

2.9×10^-33

the "e" basically represents 10 raised to some power. that power is the number to the right of it. in this case, that's to the power of 22 and -33, respectively

.

step-by-step explanation:

infinitely many solutions

step-by-step explanation:

we have been given the equation;

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

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions