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tresset_1 [31]
3 years ago
8

I got all these wrong. Can someone please help!!!

Mathematics
1 answer:
anzhelika [568]3 years ago
4 0
I need to get a high amount of points so pls dont delete comment
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A<br> = x.<br> b<br><br> What is b in the terms of a and x
liq [111]

Step-by-step explanation:

i think its

b=<u>x</u>

<u> </u><u> </u><u> </u><u> </u><u>a</u>

<u>h</u><u>o</u><u>p</u><u>e</u><u> </u><u>i</u><u>t</u><u> </u>help<u> </u><u>u</u><u>.</u><u>.</u><u>.</u>

8 0
3 years ago
The half life of radium is 1690 years. if 80 grams are present now, how much will be present in 830 years
Pachacha [2.7K]

Answer:

A(t) = amount remaining in t years

      = A0ekt, where A0 is the initial amount and k is a constant to                     be determined.  

Since A(1690) = (1/2)A0 and A0 = 80,

                we have 40 = 80e1690k

                1/2 = e1690k

                ln(1/2) = 1690k

                k = -0.0004

So, A(t) = 80e-0.0004t

Therefore, A(430) = 80e-0.0004(430)

                           = 80e-0.172

                           ≈ 67.4 g

Step-by-step explanation:

5 0
2 years ago
Eight more than twice a number is equal to ten less than five times the number. Let n represent the number. Write an equation th
solniwko [45]
The answer is 8+2n=5n-10
7 0
3 years ago
Read 2 more answers
Evaluation the expression: 7 + 2^3
aleksklad [387]

Answer:

try " 15"

Step-by-step explanation:

3 0
3 years ago
The diagonals AC and BD of the convex quadrilateral ABCD with area 28 intersect each other at point O. The lines which are paral
Zina [86]

Answer:

21

Step-by-step explanation (note, the suggested way is not the shortest one):

all the details are in the attached picture.

6 0
3 years ago
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