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CaHeK987 [17]
2 years ago
9

Write the expression as the sin or cosine of an angle. sin pi/3 cos pi/7 - sin pi/7 cos pi/3

Mathematics
1 answer:
postnew [5]2 years ago
5 0

sin(4π21). Explanation: Notice that this fits the form of the sine subtraction formula: sin(A−B)=sin(A)cos(B)−cos(A)sin(B).

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Simplify.<br><br><br><br> Enter your answer, in simplest radical form, in the box.
puteri [66]
24.75 rounded might be 25
5 0
3 years ago
Read 2 more answers
IF YOU ANSWER CORRECT YOU GET BRAINLIEST!!!!!! AND 10 POINTS!!!!!!!
Irina18 [472]

Answer:

The answer would be 30.

Step-by-step explanation:

180/6 = 30.

8 0
3 years ago
This jar has 1 red, 74 yellow, and 25 green gumballs. What are the chances of picking a green gumball? the red one? ​
kari74 [83]

Answer: green = 25/100, red = 1/100

Step-by-step explanation: add ALL of the gumballs, there's your denominator, now you have 0/100 (1+74+25), count the amount of marbles you want to get the probability of, lets say green, there's your numerator (25) = 25/100

5 0
3 years ago
9. The scale on a map is 1 cm : 7 km. If two cities are 15 cm apart on the map, what is the actual distance between the cities?
Vesna [10]

Answer:

105

Step-by-step explanation:

One way to get this is by multiplying 15 by seven because the key says that one cm equals 7 km

4 0
3 years ago
Give the volume of the triangular prism shown
Nitella [24]

Answer:

  D.  264 in³

Step-by-step explanation:

The missing edge dimension can be found using the Pythagorean theorem. Then the volume can be found using the appropriate formula.

<h3>Edge dimension</h3>

The missing dimension and the two given for the top triangle will satisfy the Pythagorean theorem. If the missing dimension is represented by 'a', then we have ...

  a² +8² = 10²

  a = √(100 -64) = 6 . . . . inches

<h3>Volume</h3>

The area of the top triangle is ...

  A = 1/2bh . . . . where b and h are the base and height dimensions

  A = 1/2(6 in)(8 in) = 24 in²

The volume of the triangular prism is ...

  A = Bh . . . . . where B is the area of the triangular base, and h is the prism height

  A = (24 in²)(11 in) = 264 in³

The volume of the triangular prism shown is 264 in³.

6 0
2 years ago
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