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3 years ago

ABCD is a rectangle. What is the value of x?

Mathematics

2 answers:

ankoles [38]3 years ago

7 0

Answer:

Step-by-step explanation:

Use the pythagorean theorem

a² + b² = c²

a² + 63² = 65²

a² + 3969 = 4225

a² = 256

a = 16

x = 16 meters

baherus [9]3 years ago

5 0

Answer:

B. 16 meters

Step-by-step explanation:

Use Pythagorean Theorem to find the value of x

63² + x² = 65² Simplify

3969 + x² = 4225

-3969 - 3969 Subtract 3969 from both sides

x² = 256 Take the square root of both sides

x = 16

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I need help ASAP will mark the brainliest

IgorLugansk [536]

Answer:

addition property

Step-by-step explanation:

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2 years ago

The length of a rectangular garden is three feet less than twice it’s width. If the perimeter of the garden is 42 feet, what is

Masja [62]

Answer:

The length of a rectangular garden is: 13 feet

Step-by-step explanation:

You have 2 lengths that are 2x-3 feet, and 2 widths that are x.

2x-3 + 2x-3 +x +x =42 feet

4x -6 +2x -42 feet

6x -6 = 42 feet

6x = 48 feet

x = 8 feet (so, 2x-3 = 16-3 = 13 feet)

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3 years ago

Given the sequence rn defined recursively below, find r3. r1rn=2=−rn−1+n−2

kifflom [539]

Answer:

$r_3=3$

Step-by-step explanation:

Given:

$r_1=2\\r_n=-r_{n-1}+n-2$

We want to find the value of $r_3$ .

$\\r_2=-r_{2-1}+2-2\\r_2=-r_1\\r_2=-2\\\\r_3=-r_{3-1}+3-2\\r_3=-r_{2}+1\\r_3=-(-2)+1\\r_3=2+1\\r_3=3$

7 0

3 years ago

2\3 a certain number reduced by 11 is equal to 4 more than that number. Find the number (show work)

ArbitrLikvidat [17]

11 - 2/3n = 4 + n
n + 2/3n = 7
3n^2 + 2 = 21n
3n^2 - 21n + 2 = 0
n = 6.903 , n = 0.09657

4 0

2 years ago

Find the area of this triangle, round to the nearest 10th

Juliette [100K]

Answer:

109.3 yard²

Step-by-step explanation:

Area of triangle = bh / 2

base is 23yd

height is 9.5yd

bh / 2 = 23 × 9.5 / 2

Area = 218.5 / 2

Area = 109.25 yd²; rounded to the nearest tenth is 109.3yd²

7 0

1 year ago