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Nonamiya [84]
3 years ago
9

What’s 1 decade and 8 years minus 9 years

Mathematics
2 answers:
san4es73 [151]3 years ago
6 0
One decade is 10 years+ 8 years is 18 total years
18 minus 9 is 9 years
Hope this helps
olga2289 [7]3 years ago
3 0
The answer is 9 years because a decade is 10 years.
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The first tern of an arithmetic sequence is -3 and the fifteenth term id 53. What is the common difference of the sequence?
arsen [322]
The common difference is 4. U know that the formula is the first term + d(n -1). N-1 is 14 so u know that 14 times a number needs to equal 56 because the first term is -3 and 56-3 is 53. 14 * 4 is 56. So the common difference is 4
5 0
3 years ago
I need help !!! I don’t understand the problem
Pepsi [2]

Answer:

It would be -81²x+81x-18= -9x+6

Step-by-step explanation:

When you work equation one you get 18. Then when you work equation two, you get -2/3=-0.666666667

7 0
3 years ago
Lara chose a square number. She rounds it to the nearest hundred. Her answer is 200. What are all the possible square number she
gogolik [260]
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3 years ago
Find solution of the equation 3sin^2x-7sinx+2=0
Goshia [24]
Simplife3^2 to 9
9x-7+2=0
9x-7+2to 9x-5
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add 5 to both sides 9x=5
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x=5/9
7 0
3 years ago
What is the equation of the line passing through the point (-2,-1) and perpendicular to the line y = 1/2x+5?
uranmaximum [27]

Step-by-step explanation:

the slope of a line is always the factor of x.

here : 1/2

it is the ratio y/x indicating how many units y changes, when x changes a certain angina amount of units when going from one point to another.

a perpendicular slope puts x and y upside-down and flips the sign.

here : -2/1 = -2

so, the equation looks like

y = -2x + b

b is the y-intercept, and we get this by putting the x and y coordinates of the given point into this equation and solve for b :

-1 = -2×-2 + b

-1 = 4 + b

b = -5

the full equation is therefore

y = -2x - 5

3 0
3 years ago
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