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3 years ago

Do this for points, like usual, the question is below. And need asap!!!

Mathematics

1 answer:

tino4ka555 [31]3 years ago

8 0

Answer:

Step-by-step explanation:

$\frac{1}{4} / \frac{5}{6}$

To do this all we do is take the reciprocal of the second set of numbers (5/6)

So for 1/a, a would still be 4 as that does not change

However, b would now be 6 and c would now be 5.

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Will give brainliest!!

yawa3891 [41]

Answer:

$r=\frac{9\cos \theta}{\sin^2 \theta}$

Step-by-step explanation:

The given equation in rectangular coordinates is;

$y^2=9x$

We use the relation;

$x=r\cos \theta$

and

$y=r \sin \theta$

This implies that;

$(r \sin \theta)^2=9(r \cos \theta)$

$r^2 \sin^2 \theta=9r \cos \theta$

Divide through by r to get;

$r \sin^2 \theta=9\cos \theta$

Divide both sides by $\sin^2 \theta$

$r=\frac{9\cos \theta}{\sin^2 \theta}$

8 0

3 years ago

Gemma’s mum runs the merchandise shop. She buys 60 t-shirts from the wholesaler at £13 each. She sets the selling price of each

SashulF [63]

Answer:

132.6 profit

Step-by-step explanation:

13 plus 30 percent

$16.9 times 40

$676

16.9 - 30%

$11.83 times 20

$236.6 plus 676

$912.6 - 13 × 60

$912.6 - $780

132.6 profit

3 0

3 years ago

Ricky and Sam each bought a remote control car for $80. A few months later they both sold it. Ricky sold his car for 25% less th

Elden [556K]

Answer:

Step-by-step explanation:

25/100 x 80/1 = 20/1

80 - 20 = 60

30/100 x 80/1 = 24/1

80 - 24 = 56

60-56=4

6 0

3 years ago

The line parallel to y = -3/2x that goes through the point (-2,0)

fgiga [73]

Answer:

Step-by-step explanation: cause

7 0

2 years ago

two lines intersect.One has gradient 4 and y-axis intercept 3. The other has gradient 6 and cuts the y-axis at (0,1). What is th

timurjin [86]

Answer:

(1, 7 )

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Then the equations of the 2 lines are

y = 4x + 3 → (1)

y = 6x + 1 → (2)

Substitute y = 6x + 1 into (1)

6x + 1 = 4x + 3 ( subtract 4x from both sides )

2x + 1 = 3 ( subtract 1 from both sides )

2x = 2 ( divide both sides by 2 )

x = 1

Substitute x = 1 into either of the 2 equations for corresponding value of y

Substituting into (1)

y = 4(1) + 3 = 4 + 3 = 7

Point of intersection = (1, 7 )

5 0

3 years ago