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1 year ago

Find the angle the line 3y =2x + 6 makes with the x axis

Mathematics

1 answer:

Artemon [7]1 year ago

6 0

Find the angle between lines; 0.5880 rad, 33.7°
Answer: 0.5880 rad. 33.7°

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8/20 greater than or less than 2/10

kumpel [21]

8/20 is greater than 2/10. If you were to make the denominators the same, by mulipling 2x2 and 10x2, you would get 4/20, which is less than 8/20.

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2 years ago

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Abana deposits $1000 each year into a savings account earning 2% intrest .how much after 3 years

ladessa [460]

$60, Because 2% of $1000 is $20, and 20 x 3 is 60.

8 0

2 years ago

Safeway has ginger ale on sale at 12 cans for $4.00 and Giant has the same brand

Genrish500 [490]

Answer:

Giant has the better deal

Step-by-step explanation:

4.00/ 12 is .3333333

6.00/20 is .30

so . 30 is less that .3333333333

therefore Giant has the better deal

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2 years ago

50 pts! Factor the expression over the complex numbers. x^2+52

Bas_tet [7]

$x^2+52=\\\\x^2-(-52)=\\\\(x-\sqrt{-52})(x+\sqrt{-52})=\\\\(x-\sqrt{4\cdot13 \cdot(-1)})(x+\sqrt{4\cdot13\cdot(-1)})=\\\\(x-2\sqrt{13}i)(x+2\sqrt{13}i)$

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2 years ago

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The height of a rectangle is increasing at a rate of 3 centimeters per hour and the width of the rectangle is decreasing at a ra

n200080 [17]

Answer:

Rate of change of the area of the rectangle at that instant = 7 cm²/hr.

Step-by-step explanation:

Area of rectangle = Height x Width

A = hw

The height of a rectangle is increasing at a rate of 3 centimeters per hour and the width of the rectangle is decreasing at a rate of 4 centimeters per hour.

$\texttt{Rate of change of height = }\frac{dh}{dt}=3cm/hr\\\\\texttt{Rate of change of width = }\frac{dw}{dt}=-4cm/hr$

Differentiating area with respect to time,

$\frac{dA}{dt}=h\frac{dw}{dt}+w\frac{dh}{dt}$

We need to find rate of change of area when the height is 5 centimeters and the width is 9 centimeters.

$\frac{dA}{dt}=h\frac{dw}{dt}+w\frac{dh}{dt}\\\\\frac{dA}{dt}=5\times (-4)+9\times 3=-20+27=7cm^2/hr$

Rate of change of the area of the rectangle at that instant = 7 cm²/hr.

5 0

3 years ago

Find the angle the line 3y =2x + 6 makes with the x axis​

Find the angle the line 3y =2x + 6 makes with the x axis