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3 years ago

Rewrite the equations using a negative exponent!! ill give brainliest, any random or incomplete answers will be reported!!

Mathematics

2 answers:

valentina_108 [34]3 years ago

6 0

Answer:

2348299392 xx

vesna_86 [32]3 years ago

5 0

Answer:

11. $x^{-2}$

12. $m^{-3}$

13. $(x+2y)^{-4}$

14. $(x+3y)^{-2}$

15. $(x+y)^{-3}$

16. $(2x+3y)^{-6}$

17. $(-3m-9)^{-3}$

18. $x^{-4}$

Step-by-step explanation:

In all of them you just subtract the bottom exponent from the top exponent.

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Find an equation of the tangent line to the curve 2(x2+y2)2=25(x2−y2) (a lemniscate) at the point (−3,1). An equation of the tan

valina [46]

$2(x^2+y^2)^2=25(x^2-y^2)$

Let $y=y(x)$ , so that differentiating both sides wrt $x$ gives

$4(x^2+y^2)\left(2x+2y\dfrac{\mathrm dy}{\mathrm dx}\right)=25\left(2x-2y\dfrac{\mathrm dy}{\mathrm dx}\right)$

If $x=-3$ and $y=1$ , the above reduces to

$40\left(-6+2\dfrac{\mathrm dy}{\mathrm dx}\right)=25\left(-6-2\dfrac{\mathrm dy}{\mathrm dx}\right)\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac9{13}$

This is the slope of the tangent line, which has equation

$y-1=\dfrac9{13}(x+3)\implies\boxed{y=\dfrac{9x+40}{13}}$

7 0

3 years ago

The altitude of a helicopter increases 1000 feet every 4 minutes.

tatiyna

Answer:

1/250

Step-by-step explanation:

1000/4 simplifies to 1/250

All you had to do was simplify it

8 0

3 years ago

Read 2 more answers

If AABC ~ AAVW, find the values of x and y.

sergey [27]

Answer:

x=28, y=12

Step-by-step explanation:

The squiggly symbol? This means the shapes/angles are congruent, meaning that if you rotated them around, they would match.

x's match runs along the same line as it's match, and same goes for y's. Imagine rotating around the lower triangle and lining it up with the upper triangle.

3 0

3 years ago

a tree rhar is 8 feet tall is growing at a rate of 2 feet each year a tree is 13 feet tall is growing at a rate of 1 foot each y

Vlad [161]

Answer:

5 years

Step-by-step explanation:

The shorter tree is 5 ft shorter, but is growing 1 ft/year faster. It will make up the difference of 5 ft in (5 ft)/(1 ft/year) = 5 years.

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3 years ago

What is x? 4(x - 4) + 65 = -3x

svet-max [94.6K]

4(x - 4) + 65 = -3x
4(x) - 4(4) + 65 = -3x
4x - 16 + 65 = -3x
4x + 49 = -3x
- 4x - 4x
49 = -7x
-7 -7
-7 = x

8 0

3 years ago