Answer:
Its the first option
Step-by-step explanation:
the sign only changes when dividing or multiplying by a negative and they only moved the 3x to the other side and would have looked like this:
-x -3x -3 < 13 and you would solve from there : )
Answer:
a) 0.5763 b)0.2119 c)0.2119
Step-by-step explanation:
In order to find find the probability that the battery lasts between 24 and 28 months, we have to find z
Z = (x – mean)/standard deviation
Le x be hours a battery last
P (24<x<28) = P((24– 26)/2.5 < z < (28– 26)/2.5)
P (24<x<28) = P(-0.8< z < 0.8)
Then we use the z table to find the area under the curve.
P (24<x<28) = 0.5763
the probability that the battery lasts longer than 28 hours
P (x>28) = P(z > (28– 26)/2.5)
P (x>28) = P(z > 0.8)
Then we use the z table to find the area under the curve.
P (x>28) = 0.2119
the probability that the battery lasts less than 24 hours
P (x<24) = P(z < (24– 26)/2.5)
P (x<24) = P(z < -0.8)
P (x<24) = 0.2119
Answer:
y= 65
x= 30
Step-by-step explanation:
Answer:
121.54
Step-by-step explanation:
1580÷13=121 r 7
7 over 13 is 0.538462
rounded off to 2 decimal places:0.54
so 121+0.54
121.54
It is easy to subtract fractions by converting them into decimals first. To convert is numerator divided by denominator. So, 10 1/2 would be 10.5 and 8 3/4 would be 8. 75. Now, you can subtract them. Start at the hundredth place so subtract 5 from 0 ( because 10.5 can also be 10.50) so it would be 5. Next, 5 -7 ( so you borrow 1 from 10 so 5 would become 15 and 10 is 9) is 7. Last, subtract your whole number. 9 - 8 = 1. So, your answer would be 1. 75. To convert it to fraction, you need to write it as 1 75/ 100 and simplify it which is 1 3/4. So, Carla's plant is 1 3/4 inches taller than Yolanda's plant Hope it helps!!!!