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Marianna [84]
3 years ago
15

If the sin 30° = one half, then which statement is true?

Mathematics
1 answer:
Oliga [24]3 years ago
4 0

Answer:

cos 60° = one half because the angles are complements

Step-by-step explanation:

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The ratio of children to adults at a play is 2:3. The ratio of children under 10 to those over 10 is 7: 3. What % are younger ch
fenix001 [56]

Answer:

28%

Step-by-step explanation:

Let number of children be 2x, then number of adults be 3x

Total number is 5x

Let number of children under 10 be 7y, number of children be 3y,

then total number of children is 10y

so 2x = 10y, x = 5y, y/x = 1/5

younger children = children under 10, number is 7y

so the % is 7y/5x = 7/5 * y/x = 7/5 * 1/5 = 7/25 = 28/100 = 28%

7 0
2 years ago
Please help me with this.. I am DYING.. I hav no idea what Im getting wrong..?
Oliga [24]

Answer:

12 2/12

or 12 1/6 ( simplified fraction)

Step-by-step explanation:

first add the whole numbers together :7+5-4+3=12-1=11 ( same denominator 12)

1/12 +7/12 -5/12 +11/12 = 14/12  ( improper fraction)

= 1 2/12 mixed fraction

11 + 1 2/12=12 2/12 or 12 1/6 ( simplified fraction)

7 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%2832%29%5E%7B1%2F5%7D" id="TexFormula1" title="(32)^{1/5}" alt="(32)^{1/5}" align="absmiddle"
lorasvet [3.4K]

Answer:

<h2><em><u>2</u></em></h2>

Step-by-step explanation:

{32}^{ \frac{1}{5} }

=  \sqrt[5]{32}

=  \sqrt[5]{2 \times 2 \times 2 \times 2 \times 2}

= <em><u>2</u></em><em><u> </u></em><em><u>(</u></em><em><u>Ans</u></em><em><u>)</u></em>

4 0
3 years ago
If f(x) varies directly with x and f(x) = 72 when x = 6, find the value of f(x) when x = 3.
Levart [38]

Answer:

36

Step-by-step explanation:

Since f(x) varies directly with x, f(x) can be expressed alternatively as \[f(x) = k * x\] where k is a constant value.

Given that f(x) is 72 when the value of x is 6.

This implies, \[72 = k * 6\]

Simplifying and rearranging the equation to find the value of k:

k = \frac{72}{6}

Hence k = 12

Or, \[f(x) = 12 * x\]

When x = 3, \[f(x) = 12 *3 \]

Or in other words, the value of f(x) when x=3 is 36

4 0
3 years ago
Read 2 more answers
MAX is equiangular. If m&lt;M = (7x + 4)⁰ m&lt;A = (12x - 36)º, and m&lt;X = (10x – 20)⁰, find x.​
Musya8 [376]

Answer:

x = 8

Step-by-step explanation:

Since the triangle is equiangular then the 3 angles are congruent and of measure 60°.

Equate any of the 3 angles to 60 and solve for x, that is

7x + 4 = 60 ( subtract 4 from both sides )

7x = 56 ( divide both sides by 7 )

x = 8

3 0
3 years ago
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