Answer:
<u>128 outcomes</u>
Step-by-step explanation:
No. of outcomes for a coin is given by :
2^n [where n is the number of times a coin is tossed]
=> 2⁷
=> 2 x 2 x 2 x 2 x 2 x 2 x 2
=> 4 x 4 x 4 x 2
=> 16 x 8
=> 128
Answer:
y = 3x + 3 is the answer tour welcome
Answer:
4 days and 18 hours.
Step-by-step explanation:
1440 Watt hours = 1 day
6840 Watt hours = x
<em>Cross multiply.</em>
1440*x = 6840*1
1440x = 6840
<em>Divide both sides by </em><u><em>1440.</em></u>
1440x/1440 = 6840/1440
x = 4.75 days
4.75 days is <u>4 days and 3/4 of a day; because 3/4 = 0.75</u>
<em>We have to find 3/4 of 1 day.</em>
<u>1 day is 24 hours.</u>
3/4* 24
<em>Divide 24 by 4.</em>
3*6 = 18
So, 18 hours.
Therefore a light bulb consumes 6840 Watt hours in 4 days and 18 hours.
I hope this helps. please give brainliest, thank and rate 5 stars.
<em></em>
<u />
<u />
Given the graph of y = 2x² is transformed into y = -2x² + 3.
For any function y = f(x), the transformation y' = -y = -f(x) reflects the graph across x-axis.
So it means that y = -2x² is the reflection of y = 2x² across the x-axis.
For any graph y = g(x), the transformation y' = y + k = g(x) + k shifts the graph 'k' units upward for all value of 'k' > 0.
So it means that y = -2x² + 3 is the shifted version of y = -2x² by '"3 units up".
Hence, option B and C are correct i.e. "reflection across x-axis" and "shift of 3 units up".
Factor:=
(x + 3)(x - 2) = 0
either x+3 = 0 or (x-2)=0
so x = -3 or 2
correct choice is C