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hram777 [196]
3 years ago
7

In ΔABC, where ∠C is a right angle, cos A=√21/5. What is sin B?

Mathematics
1 answer:
Stolb23 [73]3 years ago
7 0

Answer:

A

Step-by-step explanation:

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He formula for density is given by , where p is density, M is mass and V is volume. If a substance has a mass of 27.82 grams and
Vera_Pavlovna [14]

Answer:

p = [27.82] ÷ [3.6]

p = 7.727·

p = 7.728 (3dp)

The answer is B)

Step-by-step explanation:

5 0
2 years ago
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There are 36 cupcakes. 9 of them are chocolate. What percent are chocolate?
inn [45]

Answer:

25%

Step-by-step explanation:

9/36 = 0.25

25% are chocolate.

7 0
3 years ago
Given the function f(x)=4|x-5|+3 for what values of x is f(x)=15
Andreyy89

Answer:

  {2, 8}

Step-by-step explanation:

We want to find x for ...

  15 = 4|x -5| +3

  12 = 4|x -5| . . . . subtract 3

  3 = |x -5| . . . . . . divide by 4

  ±3 = x -5 . . . . . . show the meaning of absolute value

  5 ±3 = x = {2, 8} . . . . . add 5

The values of x for which f(x) = 15 are 2 and 8.

3 0
3 years ago
Which side lengths form a right triangle?
deff fn [24]

Answer:

b

Step-by-step explanation:

6^2+8^2=100

sqrt of 100 = 10 so it would form a right triangle

8 0
3 years ago
ASAP HELP RN
Akimi4 [234]

Answer:

Part B: is -60 divided by -10

Part C: is The number of increments is positive.

Part D: is -1 times 60 / -1 times 10

Part E: is Any number divided by itself is 1. In the expression  -1 times 60, the -1s in the numerator and the denominator cancel each other out to give the result 60/10, or 6

Part F: is There are 6 increments of -10 feet in -60 feet.

Part G is: copy and paste -10 feet 6 times

Part H: is -60 / 4 increments

Part I: is there is one negative number in the expression, so the solution will be negative. There isn't a -1 in the denominator to cancel out the -1 in the numerator.

Part J: is -60 /4 =-15     Alex’s elevation change in each increment was -15 feet.

Step-by-Step Explaination: I did the test.

6 0
3 years ago
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