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3 years ago

In (r,theta), the value of theta can be negative.True or False

Mathematics

1 answer:

Marizza181 [45]3 years ago

5 0

(r,theta) represents polar coordinate .

And in (r,theta), there is neither any restriction on r nor on theta. It means both r and theta can either be positive or negative .

For e.g. (2,30 degree), (2,-30 degree) both are correct .

So the given statement is true .

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Christopher spends a total of $235.94. He

cluponka [151]

Answer:

He bought 6 sweaters

Step-by-step explanation:

235.94-80.00=155.94

155.94/25.99=6

6 0

3 years ago

Given a dilation around the origin, what is the scale factor K?<br><br> D o, K = (2,4) → (3,6)

fenix001 [56]

Answer: 3/2

Step-by-step explanation:

5 0

3 years ago

URGENT HELP What is the equation of the line that passes through the point (-7, -4) and has a

shepuryov [24]

The final equation is:

$y=x+3$

Further explanation:

The general form of equation of a line in slope-intercept form is:

$y=mx+b$

Here m is the slope

Given

m=1

(x,y) = (-7,-4)

$Putting\ the\ value\ of\ slope\ in\ equation\\y=(1)(x)+b\\y=x+b$

To find the value of b, we have to put the point in the equation

$-4=-7+b\\-4+7=b\\b=3$

The final equation is:

$y=x+3$

Keywords: Slope-intercept form, equation of line

Learn more about slope-intercept form at:

#LearnwithBrainly

7 0

2 years ago

If triangles have the ratio of 2:3 adn the smaller traingle has a aside length of 7 what si length of the correspodning sides

REY [17]

$2:3=7:x\\\\\dfrac{7}{x}=\dfrac{2}{3}\ \ \ \ |cross\ multiply\\\\2x=7\cdot3\\\\2x=21\ \ \ |:2\\\\\boxed{x=10.5}$

5 0

3 years ago

A scale on a blue print drawing of a house shows that 6 centimeters represents 3 meters. What number of centimeters on the blue

Tema [17]

Answer:

54 cm

Step-by-step explanation:

Measures are proportional on a scale drawing:

drawing measure : actual measure = 6 cm : 3 m = x : 27 m

The value on the right of the x ratio, 27, is 9 times 3, so the value of x will be 9 times 6 cm.

54 cm on the blueprint represents an actual distance of 27 meters.

5 0

3 years ago