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ziro4ka [17]
3 years ago
8

WILL GIVE BRAINLIEST!!!!!!!

Mathematics
1 answer:
Liula [17]3 years ago
5 0

Hints on solving trigonometry problems:

If no diagram is given, draw one yourself.

Mark the right angles in the diagram.

Show the sizes of the other angles and the lengths of any lines that are known

Mark the angles or sides you have to calculate.

Consider whether you need to create right triangles by drawing extra lines. For example, divide an isosceles triangle into two congruent right triangles.

Decide whether you will need Pythagorean theorem, sine, cosine or tangent.

Check that your answer is reasonable. The hypotenuse is the longest side in a right triangle.

How to use the tangent ratio to find missing sides or angles?

Example:

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Ricardo has 32 books to put on 4 shelves he puts the same number of books on each self how many books does Ricardo put on each s
frozen [14]

Answer: 8

Step-by-step explanation:

You divide 32 by 4 and get eight

8 0
3 years ago
Read 2 more answers
At the grocery store, Alan can buy 4 cans of soup for $2. At the warehouse store the same soup costs $5.76 for 12 cans, which pl
Damm [24]

Answer:

The warehouse has a better price

Step-by-step explanation:

It has a better price because each can at the grocery store is $0.50, the warehouse sells each can for $0.48. The difference is $0.02.

6 0
3 years ago
If you divide one of the roots of the equation 4x2+bx−27=0 by the other root, the quotient will be −3. Find b.
klio [65]
<h3>Answer:</h3>

  ±12   (two answers)

<h3>Explanation:</h3>

Suppose one root is <em>a</em>. Then the other root will be -3<em>a</em>. The product of the two roots is the ratio of the constant coefficient to the leading coefficient:

  (<em>a</em>)(-3<em>a</em>) = -27/4

  <em>a</em>² = -27/(4·(-3)) = 9/4

  <em>a</em> = ±√(9/4) = ±3/2

Then the other root is

  -3<em>a</em> = -3(±3/2) = ±9/2 . . . . . . the roots will have opposite signs

We know the opposite of the sum of these roots will be the ratio of the linear term coefficient to the leading coefficient: b/4, so ...

  -(a + (-3a)) = b/4

  2a = b/4

  b = 8a = 8·(±3/2)

  b = ±12

_____

<em>Check</em>

For b = 12, the equation factors as ...

  4x² +12x -27 = (2x -3)(2x +9) = 0

  It has roots -9/2 and +3/2, the ratio of which is -3.

For b = -12, the equation factors as ...

  4x² -12x -27 = (2x +3)(2x -9) = 0

  It has roots 9/2 and -3/2, the ratio of which is -3.

4 0
3 years ago
Factor 25-4z^2 <br> im having trouble with a question
shepuryov [24]

Answer:

(5-2z)(5+2z)

Step-by-step explanation:

25 -4z^2

Rewriting

5^2 - (2z)^2

This is the difference of squares  a^2 - b^2 = (a-b)(a+b)

(5-2z)(5+2z)

7 0
3 years ago
Solve for 18% of 30. DO NOT ROUND
elena-s [515]

Answer:5.4

Step-by-step explanation:

30% of 18= 18% of 30

10% of 18= 1.8

1.8 times 3=5.4

8 0
3 years ago
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