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Oksana_A [137]
3 years ago
9

Which of the following is a quadratic function ?

Mathematics
1 answer:
Lana71 [14]3 years ago
6 0
I think the ones which qualify as quadratic functions is
a
This is because any quadratic function must be able to take the standard form as ax²+bx+c
(x+2)(2x-3)=2x²-3x+4x-6=2x²+x-6

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-3[1+2(4+5)]<br> PLease answer ASAP!!!
vaieri [72.5K]

Answer:

-57

Step-by-step explanation:

<h2><u>Use BOMAS</u></h2>

B- brackets

O- of

M- multiplication

A- addition

S - subtraction

-3[1+2(4+5)]

first solve what is in the brackets

(4+5) = 9

place 9 in the brackets

-3[1+2(9)]

now multiply the 2 and 9

2*9 = 18

-3[1+18)]

1+ 18 = 19

now multiply the (-3) with 19

= <u>-57</u>

4 0
4 years ago
Read 2 more answers
Becky leaves home and rides a distance of 30 km. It took her 2.5 hours. What is her speed¿
kramer
Distance=speed times time
distance/time=speed

distance=30km
time=2.5hr

distance/time=30km/2.5hr=60km/5hr=12km/1hr=12km/hr

her speed is 12km per hour
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3 years ago
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if you have the numbers 1,4,5 and 8 in in a box and Kelly randomly chose one tile and placed it back and chose another tile what
chubhunter [2.5K]

hello

to solve this question, we need to use know the number of possible outcomes

\begin{gathered} \text{probability = }\frac{nX}{nS} \\ S=\text{  number of possible outcomes} \\ X=\text{ number of events} \end{gathered}

let's find the number of possible outcomes

we have four tiles numbered 1, 4, 5 and 8

possible outcomes are

undefined

5 0
1 year ago
Solve the system by substitution.<br> y = 82<br> y = 4x + 8
koban [17]

Answer:

2, 16

Step-by-step explanation:

4 0
3 years ago
Need help! Due very soon
denis-greek [22]
The answer is: y = 3x + -5
6 0
3 years ago
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