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arlik [135]
2 years ago
9

-15 = 10x - 40x please helpp

Mathematics
1 answer:
torisob [31]2 years ago
7 0

Answer:

\large\boxed{x=\dfrac{1}{2}}

Step-by-step explanation:

10x-40x=-15\\\\-30x=-15\qquad\text{divide both sides by (-30)}\\\\\dfrac{-30x}{-30}=\dfrac{-15}{-30}\\\\x=\dfrac{1}{2}

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X -1 &lt; -4<br><br> What is ittttttttt
Kamila [148]

Answer:

x<-3

Step-by-step explanation:

x-1+1<-4+1

x<-3

8 0
3 years ago
Circle B has a center at point (0, 2) and a point W on the circle at (3, 3). Which equation represents a line that is tangent to
Solnce55 [7]

According to the given information, the equation represents a line that is tangent to the circle and goes through the point W is given by:

y = -x + 6.

<h3>What is the equation of the circle?</h3>

The equation of a circle of center (x_0,y_0) and radius r is given by:

(x - x_0)^2 + (y - y_0)^2 = r^2

In this problem, we have that the center is at point (0,2), hence:

x^2 + (y - 2)^2 = r^2

It goes through point (3,3), hence:

3^2 + (3 - 2)^2 = r^2

r^2 = 10

Hence, the equation is:

x^2 + (y - 2)^2 = 10

<h3>What is the equation of the tangent line at point W?</h3>

It is given by:

y - y(0) = \frac{dy}{dx}|_{W}(x - x(0))

Applying implicit differentiation, we have that:

2x + 2y\frac{dy}{dy} = 0

\frac{dy}{dx} = -\frac{x}{y}

Point W(3,3), hence:

(x_0, y_0) = (3,3)

\frac{dy}{dx} = -\frac{3}{3} = -1

Hence the equation is:

y - 3 = -(x - 3).

y = -x + 6.

More can be learned about the equation of a tangent line at brainly.com/question/8174665

5 0
2 years ago
Number 14 please help 10 points no links pleAse
marshall27 [118]

Answer:

d

Step-by-step explanation:

5 0
3 years ago
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Troyanec [42]

Answer:

attach the graph in orfer for us to answer

Step-by-step explanation:

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3 years ago
Based on the figure below, what is the value of x?<br> BRAINLIEST<br> PLEASE HELP<br> SHOW WORK
Semenov [28]

Answer:

11

Step-by-step explanation:

5x+15+20=90

5x+35=90

-35 from both sides

5x=55

divide both sides by 5

x=11

7 0
3 years ago
Read 2 more answers
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