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3 years ago

Perimeter of a triangle is 32, sides are x+3, 3x-1 and 4x-2

Mathematics

1 answer:

ZanzabumX [31]3 years ago

6 0

X= 4
AB= 7
BC= 11
AC= 14

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Multiplication property of equality: If AB = CD, then 5 • AB =

Romashka [77]

Answer:

If AB = CD then 5 • AB = 5 • CD

Step-by-step explanation:

The multiplication properly of equality states that if two items have the same value, then you could swap them out and the equation would stay the same.

6 0

3 years ago

The length of a rectangle is twice its width. Find its area, if its perimeter is 7 1/3 cm The area of the rectangle is _sq. cm.

Harman [31]

Answer:

The area of rectangle is $2\frac{80}{81}\ cm^2$

Step-by-step explanation:

we know that

The perimeter of a rectangle is equal to

$P=2(L+W)$

we have

$P=7\frac{1}{3}\ cm=7+\frac{1}{3}=\frac{22}{3}\ cm$

$\frac{22}{3}=2(L+W)$

$\frac{11}{3}=(L+W)$ ----> equation A

Remember that

The length of a rectangle is twice its width.

$L=2W$ ----> equation B

substitute equation B in equation A

$\frac{11}{3}=(2W+W)$

solve for W

$W=\frac{11}{9}\ cm$

Find the value of L

$L=2(\frac{11}{9})$

$L=\frac{22}{9}\ cm$

<em>Find the area of rectangle</em>

$A=LW$

substitute the values

$A=(\frac{22}{9})(\frac{11}{9})$

$A=\frac{242}{81}\ cm^2$

Convert to mixed number

$\frac{242}{81}\ cm^2=\frac{162}{81}+\frac{80}{81}=2\frac{80}{81}\ cm^2$

7 0

2 years ago

Find the distance represented of the coordinate plane

antiseptic1488 [7]

Answer:

The answer to your question is: letter A

Step-by-step explanation:

From the graph we get the points,

P (2,1)

Q (6,8)

Formula

d = √((x2-x1)² + (y2-y1)²)

d = √((6-2)² + (8-1)²)

d = √ (4² + 7²)

d = √ (16 + 49

d = √65 letter A

3 0

2 years ago

Read 2 more answers

2/3x+2 -x-3 <br> solution and the steps how to do it

Stells [14]

$\text{Hey there!}$

$\mathsf{\dfrac{2}{3}x+2-x-3}\\\\\mathsf{COMBINE\ your\ like\ terms}\\\\\mathsf{(\dfrac{2}{3}x-x)+(2-3)}\\\\\mathsf{\dfrac{2}{3}x-x=\dfrac{-1}{3}}\\\\\mathsf{2-3=-1}\\\\\boxed{\boxed{Thus,\ your \ answer\ is: \boxed{\dfrac{-1}{3}x -1}}}\checkmark$