Answer:
-2.5
Step-by-step explanation:
-2.5 is greater.
Answer:
1
Step-by-step explanation:
The quadratic relation is a perfect square:
y = (7x +3)²
so has one zero, where the factor is zero:
7x +3 = 0
7x = -3
x = -3/7
_____
It is useful to have handy reference to the form of the square of a binomial:
(a +b)² = a² +2ab +b²
Here, your first clue is that 49x² and 9 are both perfect squares: (7x)² and (3)². It is easy to check that the middle term is twice the product of these roots:
2(7x)(3) = 42x . . . . matches the middle term
So, the given expression is equivalent to ...
y = (7x +3)²
Answer:
y=2x-5
Step-by-step explanation:
hope that helps!
<span>we have been given a mixed fraction - 4 </span>
<span>.
there are 4 wholes of 125 and remaining 27. then numerator is equal to 125 x 4 + 27 = 527.
then the improper fraction is </span>
<span>.
To write as a decimal , the denominator should be a power of 10. denominator 125 can be multiplied by 8 to get a power of 10.
125 x 8 = 1000. both numerator and denominator should be multiplied by 8
</span>
<span> now to write as a decimal, 4216 has been divided by 1000.
when dividing by a power of 10, the decimal point should move to the left.
when dividing by 1000, the decimal point should move 3 decimal places to the left. the decimal point of 4216 is after 6, when it moves 3 places to the left its between 4 and 2. Therefore answer is 4.216</span>