Answer:
upward
Step-by-step explanation:
y=4x²+4
Look at the coefficient of x²
If it is positive, it opens upward, IF it is negative, it opens downward.
In this case, the x² coefficient is +4, hence it opens upward
(see attached for plot)
Answer:
D.
Step-by-step explanation:
the dot is right in between zero and one, which makes it 0.50
Okay first you should look at the denominator and if the denominator are the same you could subtract easily but in this case the denominator are different so you see which denominator is the biggest one and try to chose the small one. So basically what four times what equals to 16 given the 4 and then you multiply the fraction 3/4 by 4 and giving 12/16 and then you subtract and giving the answer 3/16
The ratio of orange concentrate to water is 1 : 1
• Ratio in maths is defines as an ordered pair of numbers p and q, written p/q where value of q is not equal to 0. A proportion in maths is an equation In which two ratios are made equal to each other.
• For example, if there are 3 oranges and 5 lemons in a bowl of fruit, then the ratio of oranges to lemons is 3 :5
According to the question
Let the orange juice mixture be x ml
We are given that half of it is orange concentrate = 0.5x
And the other half is water = x – 0.5x =0.5x
We need to find ratio of orange concentrate to water
Orange concentrate = 0.5x
Water = 0.5x
Ratio = 0.5x/0.5x
= 1/1
= 1 : 1
Hence Proved, the ratio of orange concentrate to water is 1 : 1
Learn more about ratio here
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Answer: A, B, D
Explanation:
40/ 160 = 0.25
1/4 = 0.25
22/88 = 0.25
80/330 = 0.2424...
16/64 = 0.25
