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4 years ago

What point would you have when (-7, 3) is reflected over the line y=x?

Mathematics

2 answers:

chubhunter [2.5K]4 years ago

7 0

I believe it’s C.
The line y=x looks like a even, diagonal line going through (0, 0) on a graph. If you have (-7,3) , your in the first quadrant (in the upper left square of the graph). If you reflect it diagonally, the digits themselves would remain that same, but the value would flip (if it’s positive, it’ll become negative, if it’s negative, it’ll become positive). So if we do that with (-7, 3), it becomes (7, -3).
Solution: (7, -3)

Mekhanik [1.2K]4 years ago

4 0

Answer:

I believe its A.

Step-by-step explanation:

It usually the same numbers but backwards sometimes it just a positive or a negative different.

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slava [35]

Answer:

x =5

Step-by-step explanation:

Tangents from same external point have equal length.

KJ = LJ

4x - 1 = 2x + 9

Add 1 to both sides

4x = 2x + 9 + 1

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Subtract '2x' from both side

4x - 2x = 10

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Divide both sides by 2

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3 0

3 years ago

A rectangle has an area of 159.1m2 one of the sides is 3.7 in length work out the perimeter of the rectangle/

uysha [10]

Answer:

Solution,

Area of rectangle = 159.1 m^2

Length of rectangle = 3.7 m

Breadth of rectangle = ?

perimeter of rectangle = ?

Now,

Area of rectangle = 159.1 m^2

or, length * breadth = 159.1

or, 3.7 * breadth = 159.1

or, 3.7 breadth = 159.1

or, breadth = 159.1 / 3.7

breadth = 43 m

Again,

Finding the perimeter of rectangle:

perimeter of rectangle:

= 2 ( length + breadth)

= 2 ( 3.7 + 43 )

= 2 * 46.7

= 93.4 m

Hope this helps...

Good luck on your assignment...

8 0

3 years ago

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Leslie is a biologist. She is going to randomly select one animal from her lab to study. There are 555 salamanders, 333 crayfish

Marat540 [252]

Answer:

Step-by-step explanation:

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3 years ago

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Alexeev081 [22]

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Step-by-step explanation:

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4 years ago

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Please help!! With step by step

Sever21 [200]

Answer:

$R=\$145.12$

Step-by-step explanation:

<u>Compound Interest</u>

This is a well-know problem were we want to calculate the regular payment R needed to pay a principal P in n periods with a known rate of interest i.

The present value PV or the principal can be calculated with

$P=F_a\cdot R$

Solving for R

$\displaystyle R=\frac{P}{F_a}$

Where Fa is computed by

$\displaystyle F_a=\frac{1-(1+i)^{-n}}{i}$

We'll use the provided values but we need to convert them first to monthly payments

$i=7\%=7/(12\cdot 100)=0.00583$

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$\displaystyle F_a=\frac{1-(1+0.00583)^{-36}}{0.00583}$

$F_a=32.386$

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$\displaystyle R=\frac{4,700}{32.386}=145.12$

$\boxed{R=\$145.12}$

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3 years ago