3 years ago

Perpendicular to the y axis passes through (-1,2) slope: equation:

Mathematics

1 answer:

icang [17]3 years ago

4 0

Y=-1x+2 I think .................

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Step-by-step explanation:

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3 years ago

Find the value of 9x + 4y when x = 4 and y = -3

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3 years ago

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The sides of a rectangle are in the ratio 4:7. If its longer side is 31.5 in., find the shorter side, the perimeter, and the are

Lemur [1.5K]

Answer:

Width = 18 inches

Perimeter = 99 inches

Area = 567 square inches

Step-by-step explanation:

The sides of a rectangle are in the ratio 4:7. Then

Width $=4x$ in

Length $=7x$ in.

If its longer side is 31.5 in, then

Length = 31.5 in

and

$7x=31.5\\ \\x=\dfrac{31.5}{7}=4.5\ in$

So,

Width $=4\cdot 4.5=18\ in$

The perimeter is

$P=2(\text{Width}+\text{Length})\\ \\=2(18+31.5)\\ \\=2\cdot 49.5\\ \\=99\ in$

The area is

$A=\text{Width}\cdot \text{Length}\\ \\=18\cdot 31.5\\ \\=567\ in^2$

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3 years ago

Anyone? please help asap i really want to finish this

yan [13]

Q. 3

$b \geqslant 2 \\$

<u>b∈(2,∞)</u>

Q. 4

$r < - 5$

<u>r∈(-∞, -5)</u>

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2 years ago