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3 years ago

Which of the following is the equation of a line perpendicular to the line 7= –3/2 x + 4

Mathematics

1 answer:

frosja888 [35]3 years ago

8 0

Answer:

Option c is correct !!

Step-by-step explanation:

[ Refer to the attachment ]

As y = mx + c is an equation to represent the straight line ; we equate the given line with this equation !!

Where m is slope of the line

and c is y intercept !!

We get , m = -3/2 and c = 4

Also, two perpendicular lines follows the equation :-

$(m1)(m2) = - 1$

Where m nth is slope of nth line !!

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Priya drew a circle whose area is 25 cm. Dan drew a circle whose diameter is 4 times the radius of Priya's circle. How many time

Vitek1552 [10]

Answer:

400

Step-by-step explanation:

first work out the radius of priya's circle with the equation a = $\pi r^{2}$

$25 = \pi r^{2}$

$\frac{25}{\pi } = r^{2}$

$r = \sqrt{\frac{25}{\pi } }$

we know the diameter of a circle is 2 times the radius so the diameter of priya's circle is 2x $\sqrt{\frac{25}{\pi } }$

this means that if the diameter of dan's circle is 4 times bigger it must be

8x $\sqrt{\frac{25}{\pi } }$

to find the radius of dan's circle we divide the diameter by to 2 to give

4x $\sqrt{\frac{25}{\pi } }$

then use the a= $\pi r^{2}$ equation again

$a= (4 \sqrt{\frac{25}{\pi } })^{2} \pi$

which equals 400

hope that helped

6 0

2 years ago

Use the Distributive Property to simplify the expression.<br> 4(c-2)<br><br> Pls, help...

mote1985 [20]

Answer:

4c-8 or 4c+(-8)

Step-by-step explanation:

4xc- 4x2

8 0

2 years ago

Read 2 more answers

Ryan needs to drive 25 miles to work. So far, he has driven 4.2 miles. How many more miles must he drive?

maksim [4K]

${\underline{\orange{\textsf{\textbf{ Answer : }}}}}$

➡ He must drive 20.8 miles now.

4 0

2 years ago

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What term number will have 400 square in it?

Rudiy27

Answer:

400^2 = 160 000

Step-by-step explanation:

The square of a number means the product of a number by itself, while the perfect square ... For example, the number 9 is a perfect square because it can be expressed as a product of ... A square football pitch has a perimeter of 400 meters.

8 0

2 years ago

What is the equation of the line that passes through point (1, 1) and is

kaheart [24]

Answer:

Step-by-step explanation:

-y = -2x + 3

y = 2x - 3

y - 1 = 2(x - 1)

y - 1 = 2x - 2

y = 2x - 1

answer is B

8 0

3 years ago