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kirill [66]
4 years ago
6

Find if there was a mistake in the students work.

Mathematics
2 answers:
fomenos4 years ago
7 0
B would be the answer. hope it helps !
Alexus [3.1K]4 years ago
6 0

Answer:

b

Step-by-step explanation:

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Hey can you please help me posted picture of question
dangina [55]
The solutions to the given quadratic equation can be determined using quadratic formula.

x= \frac{-b+- \sqrt{ b^{2} -4ac} }{2a}

b =coefficient of x term = -1
a = coefficient of squared term = 4
c = constant term = 9

Using the values in the above formula we get:

x= \frac{1+- \sqrt{1-4(4)(9)} }{2(4)}  \\  \\ 
x= \frac{1+- \sqrt{-143} }{8}  \\  \\ 
x= \frac{1+-i \sqrt{143} }{8}

So, option D gives the correct answers


4 0
3 years ago
F (x) = -3x+5x^2+8 has blank roots.
NeX [460]

Answer: hi

Step-by-step explanation: hi

4 0
3 years ago
Presley's lemonade recipe uses 4 scoops of lemonade powder for every 2 1/2 cups of water. Presley uses 10 scoops of lemonade pow
Veseljchak [2.6K]
6.25 cups
(i got the question correct on a test)
7 0
3 years ago
7. If the concert handed out 208 wands and some wands were red wands and some were green wands. The ratio of red wands to green
umka21 [38]

Answer:

red = 52

Green = 156

Step-by-step explanation:

The 208 has to be divided by 4.

Three wands = 3 parts

The read wands = 1

3x + x = 208               Combine terms

4x = 208                     Divide by 4

x = 208/4

x = 52

Now the red wands = 52

The Green wand<u>s   =156</u>   (3 times 52)

Total                           208    Just as it should

4 0
3 years ago
PLESE ANSWER!!!<br> What is f(x)=-2(x-5)^2+3 in standard form?
almond37 [142]
-2x+10^5 this should be I guess
7 0
4 years ago
Read 2 more answers
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