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Olenka [21]
2 years ago
12

Which of the equations below could be the equation of this parabola?

Mathematics
2 answers:
Stels [109]2 years ago
8 0

Answer:

D

Step-by-step explanation:

The graph opens downward so we would expect the integer to be negative. Also because the parabola opens downward you cannot have the equation be X=, this leaves Y=-4xsquared as the only viable option

mihalych1998 [28]2 years ago
5 0
The answer is D final bc it’s is on y axis and the -4 comes because it’s going down the the y axis. D is final answer
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Find the highest common factor of 32 and 80
valina [46]
32=2*2*2*2*2=2^5
80=2*2*2*2*5

hcf = 2*2*2*2=2⁴=16
3 0
2 years ago
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If Gary is 11 years old how old are each of the family members
Korolek [52]

Answer:

everyone except his smaller siblings will be older than him

Step-by-step explanation:

if you need the correct answer say the full question you

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3 years ago
Which number sentence is true? O A) 2.3 x 102 > 2000 OB) 3.45 > 1-4.35| OC) 345 > 5:33 825 OD 13​
OLEGan [10]

Answer:

D) -2.14< root10 <|-2.8|

Step-by-step explanation:

the value for -2.14 is as plain as you can see, the negative version of 2.14.

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The lines next to -2.8 is asking for the absolute value of -2.8, or the distance between that number and zero. The distance between -2.8 and 0 is positive 2.8, because distance can't be negative.

The 3 numbers taken from the explanations are -2.14, 3.16, and 2.8. Ranking them from least to greatest would give you -2.14, 2.8, 3.16, or -2.14< root10 <|-2.8|

7 0
3 years ago
A ferry departs from a port along the Sands River at 10:00 am. The ferry travels at a speed of 15 mph in still water and returns
jek_recluse [69]

Answer:

Speed of river's current = 5 mph

Step-by-step explanation:

Let 'd' be the distance covered  

 Let x be the speed of the rivers current

Speed upstream = 15-x

speed downstream = 15+x

Time = distance / speed

time upstream = \frac{d}{15-x}

time downstream = \frac{d}{15+x}

the ferry trip upstream takes twice as long as its return trip downstream

\frac{d}{15-x}= \frac{2d}{15+x}

divide both sides by d

\frac{1}{15-x}= \frac{2}{15+x}

cross multiply

15+x= 2(15-x)

15+x= 30-2x

Add 2x on both sideds

15+3x= 30

subtract 15 from both sides and divide by 3

3x=15

x=5

Speed of river's current = 5 mph

8 0
3 years ago
Michelle will be 72 years old in eighteen years. How old is Michelle now? A. 90 years old B. 54 years old C. 36 years old D. 49
Katen [24]
Subtract 18 from 72 to get Michelle's current age.

72 - 18 = 54
5 0
3 years ago
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