1. Set up a proportion
x/375.5 = 42.1/100
2. Solve the proportion
x= <span>158.0434</span>
Answer: -19 i think
Step-by-step explanation:
Question One
y = v - 1/2 g t^2 Subtract v from both sides.
y - v = - 1/2 gt^2 Multiply both sides by - 1
-(y - v) = 1/2gt^2 Remove the brackets.
v - y = 1/2 gt^2 Divide by g
(v - y)/g = 1/2 t^2 Multiply by 2 on both sides
2(v - y)/g = t^2 Move the 2 to the denominator on the left.
(v - y) / 0.5g = t^2 Take the square root of both sides.
sqrt [ (v - y) / 0.5g ] = t
Answer: B or second one down <<<<<<<
Question Two
There are no minuses in the answer. That eliminates 2 and 3
km^2 - c = n Add c to both sides.
km^2 = c + n divide both sides by k
m^2 = [c + n]/k Take the square root of m^2
m = sqrt [(c + n)/k]
Answer A or the first one.
Problem 3
This is an estimation question. One value of x is <0 the other > 0
The two graphs cross when x = a bit over 2 and x < about - 5
The answer is C 2.1 and - 5.1 about.
Answer: 2.1 and -5.1
Answer: C <<<<<<<<<
First we shall convert those millions to complete number.
We know 1 million is 1,000,000
So 134.8 millions shall be
= 134.8 × 1,000,000
= 134,800,000
Now we shall convert this to the standard form.
As there are 8 digits after 1, we shall have 8 as the exponent of 10 in the standard form
So
134,800,000
= 1.348 × 
134.8 million in standard form is 1.348 ×
The total amount of the deposit is $64.87 + $199 + $19.40=$283.58, then Emil wants $125.00 back, then she must put the subtraction of the cash Emil wants back from the total money.
Answer: $283.58-$125.00= $158.58
