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Anna11 [10]
4 years ago
10

For number 17. What’s A and B?

Mathematics
2 answers:
goldenfox [79]4 years ago
8 0

Answer:

The shape is a square. Perimeter is 28 and the area is 49

Step-by-step explanation:

Distance between each point is 7. 7x7(for area) is 49 and 7x4(for perimeter) is 28.

iragen [17]4 years ago
4 0

Answer:


Step-by-step explanation:

For A what is the shape that's filled in from J, K, L, and M ( its a square)

For B the perimeter is  28 and the area is 28

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Help me with this plz<br><br> Choose: Same Or opposite
adoni [48]
Opposite but I’m not very sure
3 0
4 years ago
20. What is the solution to the equation By -2(y + 1)-3(y-2) + 6?
Afina-wow [57]
The answer is C; -2 as -5y+10 is y=-2
7 0
3 years ago
If the perimeter of a right triangle is 42 units and the length of the hypotenuse is 20 units, find the length of the other two
Mashutka [201]
So
a^2+b^2=c^2
c=hypotenuse
a^2+b^2=20^2=400

if the permiter is 42 then
p=hypotonuse+side+side
42=20+side+side
subtract 20 from both sides
22=side+side

a+b=22
subtract b from both sides
a=22-b
subsitute for a in equation below
a+2+b^2=c^2
(22-b)^2+b^2=400
b^2-44x+484+b^2=400
2b^2-44x+484=400
divide both sides by 2
b^2-22x+242=200
subtract 200 from both sides
b^2-22x+42=0
factor
(b+/-number)(b+/-number)
to find the numbers, find which 2 number multiply to 42 and add to get -22
the numbers must be neative since same signs multiplied=positive and negative+negative=negative
(b-number)(b-number)
facrors of 42=2,3,6,7,14,21
2,21
3,14
6,7
it's hard to find the number, but the numbers are -19.8882 and -2.11181
(b-19.8882)(b-2.11181)=0
if xy=0 then assume that x and y=0

b-19.8882=0
add 19.8882 to both sides
b=19.8882

b-2.11181=0
add 2.11181 to both sides
b=2.11181



the side legnths are 19.8882 units and 2.11181 units
4 0
4 years ago
A test consists of 20 questions, and students are asked to only answer 15 of them. In how many different ways can they choose 15
frozen [14]
N = 20, r = 15;
n C r = ( n * ( n - 1) ( n - 2 ) ... ( n - r + 1 )) / r !  =
20 C 15 = (20 * 19 * 18 * 17 ......8 * 7 * 6) / (15 * 14 * 13 ...* 5 * 4 * 3 * 2 * 1) =
= 15,504
Answer:
They can choose 15 questions in 15,504 ways. 
6 0
3 years ago
What is the distance between the points (-2,4) and (6,-4), rounded to the nearest tenth
jarptica [38.1K]

9514 1404 393

Answer:

  11.3 units

Step-by-step explanation:

The distance can be found using the distance formula:

  d = √((x2 -x1)² +(y2 -y1)²)

  d = √((6 -(-2))² +(-4-4)²) = √(8² +(-8)²) = √(64·2)

  d = 8√2 ≈ 11.3

The distance is approximately 11.3 units.

5 0
3 years ago
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