MATHEMATICS HIGH SCHOOL

A square dance floor has a perimeter of 120 yards.What is the length of a diagonal of the dance floor?
O 38.3 yd
O 30 yd
O 60 yd
O 42.4 yd

Answers

Answer 1
Answer: =42.4 yd is the diagonal length of the dance floor

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Solve the system of equations 3x+2y=14 2x-4y=4

Answers

3x + 2y = 14....multiply by 2
2x - 4y = 4
----------------
6x + 4y = 28 (result of multiplying by 2)
2x - 4y = 4
----------------add
8x = 32
x = 32/8
x = 4

2x - 4y = 4
2(4) - 4y = 4
8 - 4y = 4
-4y = 4 - 8
-4y = -4
y = -4/-4
y = 1

solution is (4,1)

A set of data includes 101 data points ranging from 0 – 200. If the data is split into classes with a range of 20 (1 – 20, 21 – 40, etc), and there are no values that fall in the class 101 – 120, what can you say about the data?A.The mean of the data will not be between 101 and 120.
B. All the data lies below 100.
C. The relative frequency of the class 101 – 120 is 0.
D. The median could be in the range 101 – 120.

Answers

Answer:

The relative frequency of the class 101 – 120 is 0.

Step-by-step explanation:

i took the quiz
D, because there might be values higher than 120, because the data points range from 0 - 200.

Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = x2 + 2x +1?A.right 1 unit
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C.right 2 units
D.left 2 units

Answers

The vertex of f(x) = x^2 is (0,0)

The vertex of g(x) = x^2 + 2x + 1 = 0 is (-1,0)

Then, translating the f(x) one unit to the left will map (0,0) onto (-1,0).

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Answer: left 1 unit

Step-by-step explanation:

Edge 2021 also I’m in a big storm right now so if I’m not online in a few days you know why

. If B is a complement of A, and C is a supplement of B, find these measures. A
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Answers

complementary angles add up to 90
so if A and B are complementary....and A = 40, then B = 90 - 40 = 50.

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Determine the slope from the following order pairs:
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Answers

Answer:

Step-by-step explanation:

(3-7)/(6-5)= -4/1= -4

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Answers

cos 2x=1-2sin^2x \n cos 45^0=1-2sin^2(22,5)^0 \n ( √(2) )/(2) =1-2sin^2(22,5)^0 \to sin(22,5)^0= \frac{ \sqrt{2- √(2) } }{2}
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