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dsp73
2 years ago
13

I. Write the answer with the proper label. ( 2 pts each)

Mathematics
1 answer:
Y_Kistochka [10]2 years ago
5 0
S = D/t
120 = D / 0.5
D = 120*0.5
D = 60 km

S = D/t
70 = D / 2.5
D = 70*2.5
D = 175 miles
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Find the area of the shape
Tema [17]

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Step-by-step explanation:

<u>The area is:</u>

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Correct choice is A

5 0
2 years ago
Q.2. A cricketer scores the following runs in eight innings :
dangina [55]

Answer: Mean Score = 50    Range = 31

               

Step-by-step explanation:

58+76+40+35+46+45+0+100=400

400/8=50

Range = subtract smallest number from largest number

54 - 23 = 31

7 0
2 years ago
A student bought a book for $7.50 and a pen.the total cost was $9.50.which of the following can be used to find the cost of the
zloy xaker [14]
D: because if you take 9.50-7.50=2 you would get p=price or the price of the pen.
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6 0
3 years ago
Read 2 more answers
Hi can anyone help me with this ..​
aleksley [76]

Answer:

n = π/6, π/4, 3π/4, 5π/6

Step-by-step explanation:

sin(3n) − sin n = cos(2n)

Use double and triple angle formulas:

(3 sin n − 4 sin³ n) − sin n = 1 − 2 sin² n

2 sin n − 4 sin³ n = 1 − 2 sin² n

4 sin³ n − 2 sin² n − 2 sin n + 1 = 0

Factor by grouping:

2 sin² n (2 sin n − 1) − (2 sin n − 1) = 0

(2 sin² n − 1) (2 sin n − 1) = 0

Solve:

2 sin² n − 1 = 0

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sin² n = 1/2

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2 sin n − 1 = 0

2 sin n = 1

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4 0
2 years ago
27^x = 9^x − 4 Question 1 options: x = 8 x = 4 x = −4 x = −8
Mariulka [41]

Answer:

x = -8

Step-by-step explanation:

Given the equation:

27^x=9^{x-4}

Note that

27=3^3\\ \\9=3^2,

then

27^x=(3^3)^x=3^{3x}\\ \\9^{x-4}=(3^2)^{x-4}=3^{2(x-4)}

Rewrite the equation as

3^{3x}=3^{2(x-4)},

then

3x=2(x-4)\\ \\3x=2x-8\\ \\3x-2x=-8\\ \\x=-8

4 0
3 years ago
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