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Nimfa-mama [501]
4 years ago
7

Need help pleaseeee!

Mathematics
1 answer:
Marizza181 [45]3 years ago
4 0

Answer:

I don't know the answer but I know the formula. Its I=prt

Step-by-step explanation:

Intrerest= principle amount, rate, and time.

Hope this helps!! :)

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The mass of a sample of the chemical element einsteinium-253253253 after it is initially measured is represented by the followin
bogdanovich [222]

Answer:

M(t) = 400•(0.79)^t

Step-by-step explanation:

As we can see, the change in mass is not uniform linearly

So it will be better if we used an exponential representation

The general form for an exponential representation is:

M(t) = I(1-r)^t

where r is the rate of decay, I is the initial value and t is the time in weeks with M(t) being the mass

Let us use any two points on the table

Thus, we have it that;

50 = 400(1-r)^9 •••••(i)

201 = 400(1-r)^3 •••••(ii)

divide i by ii

50/201 = (1-r)^6

0.249 = (1-r)^6

1-r = 6√0.249

1-r = 0.79

r = 1-0.79

r = 0.21

So the exponential equation is;

M(t) = 400•0.79^t

8 0
3 years ago
G(8.3,-1.4) is the midpoint between B(x,y) and L(-5.9,8). Find the coordinates of B
Dominik [7]

The coordinates of B is (22.5, -3.6)

<h3>How to find the coordinates of B?</h3>

The points are given as:

G = (8.3,-1.4)

B = (x,y)

L = (-5.9,8).

The midpoint is calculated as:

G = 0.5 * (x1 + x2, y1 + y2)

So, we have:

(8.3,-1.4)  = 0.5 * (x - 5.9, y + 0.8)

This gives

(16.6,-2.8)  = (x - 5.9, y + 0.8)

Solve for x and y

x - 5.9 = 16.6

y + 0.8 = -2.8

Evaluate

x = 22.5

y = -3.6

Hence, the coordinates of B is (22.5, -3.6)


Read more about midpoints at:

brainly.com/question/25886396

#SPJ1

4 0
2 years ago
Use the diagram below to answer questions 1-3. 60 C b If a=5, then the value of b is 2.9 8.7 C 17.3 D 5.8 2. If C= 10. then the
netineya [11]

Answer:

1. A

2. B

3. D

Sort of explanation:

This is a 30° 60° 90° triangle, so the rules below apply:

x is the short leg of the triangle, located across from the 30° angle. (In this problem, the short leg is labled b)

The hypotenuse leg is across from the right angle, and is always 2x (In this problem, the hypotenuse leg is labled c)

The long leg of the triangle is located across the 60° angle and is always x√3. (in this problem, the long leg is labeled a)

7 0
3 years ago
Can somebody solve using elimination method algebra2
inna [77]
For the first one, you just add them and you obtain an equation in y. Solve for y, then substitute y for the solution in either of the equations, then solve for x.
In the second one, multiply the first by -2, then do the addition and something similar to the first one.
4 0
4 years ago
Value of Y in formula shown when X=4/5 Y= 4/x + ✔️x + 0.2 - 5x
olga55 [171]

Answer:

The value of Y is 2.09443

Step-by-step explanation:

We have to find the value of Y for the given value of x.

The equation of Y is given by

Y=\frac{4}{x}+\sqrt x+0.2-5x

And the value of x is 4/5. On substituting this value of x in the equation of y, we get

Y=\frac{4}{\frac{4}{5}}+\sqrt {\frac{4}{5}}+0.2-5\cdot \frac{4}{5}

Y=5+\frac{2}{\sqrt5}+0.2-4

Add/subtract the numbers, we get

Y=2.09443

Therefore, the value of Y is 2.09443

3 0
4 years ago
Read 2 more answers
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