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DiKsa [7]
3 years ago
14

Please help me find the answer to tan x =31!

Mathematics
1 answer:
kykrilka [37]3 years ago
4 0
You can use a calculator for this. Hope it helps! :)

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I don't understand the first one.
Mekhanik [1.2K]
No the 6 times 8 is 48 and the 9 times 12 is 108
8 0
3 years ago
Read 2 more answers
Determine the perimeter of ABCD.
Galina-37 [17]
You add of the sides to get the perimeter.. 9 plus 9 is 18 and 5 plus 5 is 10. 10 plus 18 of 28. The perimeter of ABCD is 28.
I hope this helps.
7 0
3 years ago
A soccer field for a youth league has an area of 4000 square yards and is 60% longer than it is wide what is the length of the f
olasank [31]

Let

width,w

length, l = 1.6w ...eqn 1

area, a = l × w ...eqn 2

subst for l in eqn 2

a = 1.6 w × w = 4000

4000 = 1.6 w^2

w^2 = 2500

w = 50

subst for w in eqn 1

l = 50 x 1.6 = 80

length = 80 yds

width = 50 yds

4 0
3 years ago
What's this? I don't know
AveGali [126]

Answer:

it's a quadratic formula

Step-by-step explanation:

in the formula, substitute the value of <u>a as 1, b as 2 and c as -8</u>

then, you will get ur answer

3 0
3 years ago
What power of 10 is used to write the number
Anastasy [175]

Answer: Seventh power of 10


Step-by-step explanation:

X > 1 so exponent will be positive and decimal point moves left. At each point divide X by 10, add 1 to exponent of 10. Exponent starts at zero.


Each time you move the decimal point one to left, you have divided the number by 10, so you have to compensate by multiplying the 10^n factor by 10, say 10 × 10^3 = 10×10×10×10 = 10^4.


12345678 = 12345678 × 10^0

= 1234567.8 × 10^1

= 123456.78 × 10^2

= 12345.678 × 10^3

= 1234.5678 × 10^4

= 123.45678 × 10^5

= 12.345678 × 10^6

= 1.2345678 × 10^7


Each time you move decimal to right, you have multiplied the number by 10, so you have to compensate by dividing the 10^n by 10, subtracting one from exponent.


0.000123 × 10^0 = 0.00123 × 10^-1

= 0.0123 × 10^-2 = 0.123 × 10^-3 = 1.23 × 10^-4


10^-2 / 10 = (1/(10×10)) / 10 = 1/(10×10×10) = 10^-3

6 0
3 years ago
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