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lisabon 2012 [21]
3 years ago
8

How are coordinate planes helpful to archaeologist

Mathematics
1 answer:
Nikolay [14]3 years ago
5 0
A coordinate plane is the exact or close to exact location that an object can be found. So archaeologists can use coordinate planes to find bones.

Hope this helps!
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Solve for y.<br> -16y - 7y + -5 = 18<br> Y =
Anton [14]

Answer: y = - 1

Step-by-step explanation:

  1. Combine the like terms. -23y - 5 = 18
  2. Add 5 on both sides. -23y = 23
  3. Divide -23 on both sides. y = - 1
4 0
3 years ago
Read 2 more answers
I’ll give brainiest
ElenaW [278]

Answer:

8.33333cm

Step-by-step explanation:

Using the formula

A=wl

Solving forw

w=A/L

=125/15

≈8.33333cm

8.3cm to the nearest tenth

correct so pls mark brainliest

7 0
2 years ago
What is -5w = 45 on a numberline
Zarrin [17]
-5w=45
/-5    /-5
w=-9

The answer is -9


8 0
3 years ago
The amount A of the radioactive element radium in a sample decays at a rate proportional to the amount of radium present. Given
slavikrds [6]

Answer:

a) \frac{dm}{dt} = -k\cdot m, b) m(t) = m_{o}\cdot e^{-\frac{t}{\tau} }, c) m(t) = 10\cdot e^{-\frac{t}{2438.155} }, d) m(300) \approx 8.842\,g

Step-by-step explanation:

a) Let assume an initial mass m decaying at a constant rate k throughout time, the differential equation is:

\frac{dm}{dt} = -k\cdot m

b) The general solution is found after separating variables and integrating each sides:

m(t) = m_{o}\cdot e^{-\frac{t}{\tau} }

Where \tau is the time constant and k = \frac{1}{\tau}

c) The time constant is:

\tau = \frac{1690\,yr}{\ln 2}

\tau = 2438.155\,yr

The particular solution of the differential equation is:

m(t) = 10\cdot e^{-\frac{t}{2438.155} }

d) The amount of radium after 300 years is:

m(300) \approx 8.842\,g

4 0
3 years ago
Read 2 more answers
In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale
gogolik [260]

Answer:

i think the original price is 60

Step-by-step explanation:

25% of 60 is $45.

4 0
3 years ago
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