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Phoenix [80]
1 year ago
14

Hello please take a look at the picture for the question!

Mathematics
1 answer:
jolli1 [7]1 year ago
3 0

standard form of sine function:

y = a sin (bx+c) + d

Where:

lal = amplitude

For:

y= -3/4 sin θ

a =l -3/4 l (obsolute value )

a= 3/4

Answer: A (3/4)

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Answer:

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Step-by-step explanation:

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Read 2 more answers
Donnie deli man delivered 595 box lunches for the robotics convention. There were 20 more turkey sandwiches then roast beef. The
Vinil7 [7]

Answer:

250 turkey sandwiches were delivered.

There were 230 roast beef delivered.

115 PB&J were delivered.

Step-by-step explanation:

This question is solved using a system of equations.

I am going to say that:

x is the number of turkey sandwiches.

y is the number of roast beef.

z is the number of PB&J.

Donnie delivered 595 box lunches

This means that x + y + z = 595

There were 20 more turkey sandwiches then roast beef.

This means that x = y + 20

There were twice as many roast beef has PB&J.

This means that y = 2z.

So in the second equation, we have that x = 2z + 20

Replacing this in the first equation:

x + y + z = 595

2z + 20 + 2z + z = 595

5z = 575

z = \frac{575}{5}

z = 115

115 PB&J were delivered.

x = 2z + 20 = 2*115 + 20 = 250

250 turkey sandwiches were delivered.

x = y + 20

So

y = x - 20 = 250 - 20 = 230

There were 230 roast beef delivered.

8 0
4 years ago
A coin is tossed and an eight sided die is rolled. What is the probability that the coin lands on tails, and the die lands on a
jeyben [28]

Answer:

50 50 one in 8

Step-by-step explanation:

The coin is a 50 50 and the dice in 2 in 8

5 0
4 years ago
A glasshouse is in the shape of a square pyramid. Calculate the area of the four triangle faces to be nearest square metre if th
Eduardwww [97]

Answer:

  789 m²

Step-by-step explanation:

Consider the cross section created by a vertical plane through the apex of the pyramid and bisecting opposite sides. The cross section is an isosceles triangle with base 20 m and height 17 m. One side of this triangle is the slant height of the face of the pyramid.

The side of the triangle above can be found using the Pythagorean theorem. A median from the apex of the triangle will divide it into two right triangles, each with a base of 10 m and a height of 17 m. Then the hypotenuse is ...

  s² = (10 m)² +(17 m)² = 389 m²

  s = √389 m ≈ 19.723 m . . . . . slant height of one triangular face

__

The area of one triangular face is ...

  A = (1/2)sb

where s is the slant height above, and b is the 20 m base of the face of the pyramid. There are 4 of these faces, so the total area is ...

  total lateral area = 4A = 4(1/2)sb = 2sb = 2(19.723 m)(20 m)

  total lateral area ≈ 789 m²

7 0
3 years ago
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