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11Alexandr11 [23.1K]
3 years ago
10

Please help, very hard question (for me), Will give Brainliest!!!

Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0
The answer is D. This is because when you take 10.65 and subtract 9.95 from it you get 0.07. If you take this number and continuously add to 9.95 you get the numbers provided in the chart. We'll also notice that the 0.07 is only added after 10 minutes of talking (10,20,30,etc.).
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Ahsan
NikAS [45]

It is number 1 and number 2 because the equation is 242× 62 and Number 1 and 2 are just breaking it down

7 0
3 years ago
Help math ASAP ASAP math
LenKa [72]

Answer:

y-7=-2/1 (x-1)

Step-by-step explanation:

Hope this helps!

8 0
2 years ago
Find the substance's half-life, in days.<br> Round your answer to the nearest tenth.
shutvik [7]

Answer:

t = 5.6 day

t =5 days 14 hours 24 minutes

Step-by-step explanation:

Half life is the time it will take for the original value or quantity I'd a particular substance to decrease by half of it's original self.

N = N•e(-kt)

N• = 25

K = 0.1229

Then

N = 25/2 = 12.5

The reason because at the half life , it's original value will decrease to half.

Let's solve for the half life t

N = N•e(-kt)

12.5 = 25e(-0.1229t)

12.5/25 = e(-0.1229t)

0.5 = e(-0.1229t)

In 0.5 =-0.1229t

-0.69314 = -0.1229t

-0.69314/-0.1229 = t

5.6399 = t

To the nearest tenth

5.6 days = t

4 0
3 years ago
Two numbers add to be 5 multiply to be -6
FrozenT [24]

Answer:

-1, 6

Step-by-step explanation:

x + y = 5

xy = -6

Take first equation and rewrite it. y = -x + 5

Then substitute the new equation in the second one.

x(-x + 5) = -6

-x^2 + 5x + 6 = 0

Divide by -1

x^2 - 5x - 6

(x + 1)(x - 6) = 0

x = -1, 6

3 0
2 years ago
Suppose a= 1.885 and b= 3.572. Let θ be an angle in standard position that lies in Quadrant 3 with tan(θ)=ab. Find sec(θ). Round
Burka [1]

Answer: sin 8/17

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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