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Damm [24]
3 years ago
11

What is value of X? 14=3 + 2x​

Mathematics
1 answer:
LenaWriter [7]3 years ago
3 0

Answer:

x = 5.5

Step-by-step explanation:

so firstly you would takeaway 3 from both sides

then you would divide 11 by 2 which is 5.5

and that's your answer 5.5

14 = 3 + 2x

11 = 2x

x = 5.5

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After releasing of radioactive material into.The atnosphere from.A nuclear.Powe plant in a country in 1988, the hay in that coun
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Answer:

the question is incomplete, so I looked for a similar one:

<em>After the release of radioactive material into the atmosphere  from a nuclear power plant, the hay was contaminated by iodine  131 ( half-life, 8 days). If it is all right to feed the hay to cows  when 10% of the iodine 131 remains, how long did the farmers  need to wait to use this hay? </em>

iodine's half life (we are given x, we need to find b):

0.5A₀ = A₀eᵇˣ

x = 8 days

we eliminate A₀ from both sides

0.5 = eᵇ⁸

ln 0.5 = ln eᵇ⁸

-0.69315 = b8

b = -0.69315 / 8 = -0.08664

since the farmers need to wait until only 10% of the iodine remains (we already calculated b, now we need to find x):

0.1A₀ = A₀eᵇˣ

0.1 = eᵇˣ

ln 0.1 = bx

where b = -0.08664

x = ln 0.1 / -0.08664  = -2.302585 / -0.08664  = 26.58 days

4 0
3 years ago
(98 Points) Steven wants to buy a $250 computer. He has a coupon that he wants to use when he buys the computer. Steven jots dow
Andrei [34K]

Answer:

x=.83

Step-by-step explanation:

What you do is you have to get x by itself.

You will have to divide 250 on both sides to get x by itself.

x=.83 is your answer.

6 0
4 years ago
Read 2 more answers
there are 10 students in a classroom, including the triplets Hugh,Stu, ans Lou. if 3 of 10 are randomly selected to give speeche
Keith_Richards [23]
1/10 for Hugh to be first and after he is picked only 9 students remain so 1/9 for stu and after he is picked only 8 remain to be chosen so 1/8 for lou. The chance of all three happening is 1/10×1/9×1/8=1/720 this is the probability that 3 triplets will be chosen in that exact order out of 10 students
3 0
3 years ago
HURRY Find the measure of angle x. Round your answer to the nearest hundredth. (please type the numerical answer only) (6 points
KatRina [158]

Answer:

x = 22.62 degrees

Step-by-step explanation:

Since this is a right triangle, we can use trig functions.

cos theta = adj side / hypotenuse

cos x = 12/13

Taking the inverse cos of each side

cos ^-1 ( cos x) =cos ^-1 (12/13)

x =22.61986495

To the nearest hundredth

x = 22.62 degrees

7 0
3 years ago
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