Answer:
Step-by-step explanation:
the given equation is in the form of quadratic formula i.e.ax^2+bx+c=0.
So ,here a=-1 ,b=-6 and c=-9
b^2=(-6)^2
=36
4ac=4*(-1)*(-9)
=4*9
=36
b^2-4ac=36-36
=0
number of solutions =1
Hope this helps u !!
Answer:
B
Step-by-step explanation:
The answer is b because the domain of anything is always x or on the x axis .
Answer:
yes she is correct
Step-by-step explanation:
because in 1 year it will go up 4.5%
We first write the fractions in their decimal forms and find out the ratio.
2 1/4 is equivalent to 2.25, and 1 1/3 is equivalent to 1.33.
Ratio will be 2.25 / 1.33 = 1.69 or 1.7 rounded off. Since it cannot be simplified further, then the ratio of mulch to gravel will be 1.7: 1.
Quantity of mulch sold → 1.7/2.7 of 172 →0.629 ×172 = 108.2 pounds.
Quantity of gravel sold will be 172 -108. 2 = <span>63 .8 pounds.</span>
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<span>Hope this helps :)</span>
Answer:
For the first question: y = x^2
For the second question: y = x^2 - 2x + 1
For the third question: y = x^2 + 2x + 1
For the fourth question: y = x
For the fifth question: y = -x
Hope this helps:) Have a great day!