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3 years ago

9

Can someone answer this‼️‼️Give an equation for each answer and please read the directions for number 8 fill in Iceland and Hono

lulu

1 answer:

Dmitrij [34]3 years ago

5 0

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If the sum of 37 and 12 x is 286, what is the value of x?

NNADVOKAT [17]

Answer:

x = 20.75

Step-by-step explanation:

37 + 12x = 286 <-- Subtract 37

12x = 249 <-- Divide by 12

x = 20.75

4 0

2 years ago

The cost of DVD players has dropped by $20 each year. If a DVD player cost $189 four years ago, how much does it cost today

Karolina [17]

It costs $189-(4×$20) which is $189-$80=$109

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2 years ago

What is 100,000,000 written as a power of ten?<br> a. 10^8<br> b. 10^9<br> c. 10^10<br> d. 10^11

Minchanka [31]

$100,000,000 = 100 \times 10^6 = 1\times 10^8\\~~\underbrace{~~~~~~~~~~~~~~~}\\~~~~~~~~~8$

Your answer is a. 10^8

7 0

2 years ago

Use implicit differentiation to find an equation of the tangent line to the curve at the given point. x2/3 + y2/3 = 4 (−3 3 , 1)

vovikov84 [41]

Answer with Step-by-step explanation:

We are given that an equation of curve

$x^{\frac{2}{3}}+y^{\frac{2}{3}}=4$

We have to find the equation of tangent line to the given curve at point $(-3\sqrt3,1)$

By using implicit differentiation, differentiate w.r.t x

$\frac{2}{3}x^{-\frac{1}{3}}+\frac{2}{3}y^{-\frac{1}{3}}\frac{dy}{dx}=0$

Using formula : $\frac{dx^n}{dx}=nx^{n-1}$

$\frac{2}{3}y^{-\frac{1}{3}}\frac{dy}{dx}=-\frac{2}{3}x^{-\frac{1}{3}}$

$\frac{dy}{dx}=\frac{-\frac{2}{3}x^{-\frac{1}{3}}}{\frac{2}{3}y^{-\frac{1}{3}}}$

$\frac{dy}{dx}=-\frac{x^{-\frac{1}{3}}}{y^{-\frac{1}{3}}}$

Substitute the value x= $-3\sqrt3,y=1$

Then, we get

$\frac{dy}{dx}=-\frac{(-3\sqrt3)^{-\frac{1}{3}}}{1}$

$\frac{dy}{dx}=-(-3^{\frac{3}{2}})^{-\frac{1}{3}}=-\frac{1}{-(3)^{\frac{3}{2}\times \frac{1}{3}}}=\frac{1}{\sqrt3}$

Slope of tangent=m= $\frac{1}{\sqrt3}$

Equation of tangent line with slope m and passing through the point $(x_1,y_1)$ is given by

$y-y_1=m(x-x_1)$

Substitute the values then we get

The equation of tangent line is given by

$y-1=\frac{1}{\sqrt3}(x+3\sqrt3)$

$y-1=\frac{x}{\sqrt3}+3$

$y=\frac{x}{\sqrt3}+3+1$

$y=\frac{x}{\sqrt3}+4$

This is required equation of tangent line to the given curve at given point.

8 0

3 years ago

Which graph represent y = ^3 sqrt x-5

Juliette [100K]

The graph that represents 2+3 is the one that mean go add then multiply it to the equation that the number will be

3 0

3 years ago