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Maru [420]
4 years ago
15

Solve e ^ -x^2 = 0.23

Mathematics
1 answer:
andrey2020 [161]4 years ago
4 0
If e repersents the something of logarithms then
I memorised e to 16 digits:2.718281828459045...

so that number^2-x^2=0.23
number squred=aprox 7.38906
7.38906-x^2=0.23
subtract 7.38906 forom both sides
-x^2=-7.15906
multiply negative
x^2=7.15906
squre root
2.67564=x


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I’m not sure how to figure out what numbers to fill in and the equation
Tanzania [10]
Lets calculate linear equation
assume
y = f(x)= mx +b

now given
f(0) = 2
m×0+b = 2
b = 2
so b = 2
given f(4) = 0.125 = 1/8
m×4 + 2 = 1/8
4m = 1/8-2= -15/8
m = -15 /(8×4) = -15/32

so linear equation is
y = mx + b = -15x/32 + 2


exponential equation is same as you have written

y = 2(0.5)^x

now put values of x in each equation to get value of y

x =0

linear y = -15×0/32+2 = 2

exp y = 2(0.5)^0 = 2×1 = 2

x =1

linear y = -15×1/32+2 = 2-15/32= 49/32

exp y = 2(0.5)^1 = 2×1/2 = 1

x =2

linear y = -15×2/32+2 = 2-30/32= 17/16

exp y = 2(0.5)^2 = 2×1/4 = 0.5

x =3

linear y = -15×3/32+2 = 2-45/32= 19/32

exp y = 2(0.5)^3 = 2×1/8= 0.25

x =4

linear y = -15×4/32+2 = 2-60/32= 4/32 = 0.125

exp y = 2(0.5)^4= 2×1/16 = 1/8= 0.125
8 0
4 years ago
Find the area of each figure. Round to the nearest tenth if necessary.
Gnesinka [82]

Shape 1: TRIANGLE

Formula: A = 1/2 x bh

1/2 x (10)(5) = 25

AREA: 25 square yards

Shape 2: RECTANGLE

Formula: A = lw

(12)(10) = 120

AREA: 120 square yards

Sum (ADD)

25 yd^2 + 120 yd^2 = 145 yd^2

The area of the composite figure is 145 yd^2

8 0
3 years ago
Read 2 more answers
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Fed [463]

Answer:

5 divided by 5/6=6

5 0
3 years ago
Evaluate each function.<br> w(a)= a + 4; Find w(1)
Anuta_ua [19.1K]

Answer: 5

because w(a) = a + 4

=> w(1) = 1+ 4 = 5

Step-by-step explanation:

7 0
3 years ago
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mars1129 [50]
Here you go. Answer is in the Image.

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