3 years ago

HELP best get brailyest

Mathematics

1 answer:

Zarrin [17]3 years ago

6 0

Answer:

1st, 3rd and 4th options.

Step-by-step explanation:

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PLEASE HELP <br> Show work

dsp73

Answer:

$\tan(24) = \frac{x}{13} \\ 0.445228685308 \times 13 = x \\ x = 5.787972909010 \\ x = 5.788$

$\tan(68) = \frac{27}{x} \\2.475086853416 \times x = 27 \\ x = 27 \div 2.475086853416 \\ x = 10.90870809754 \\ x = 10.909$

$\tan(0) = \frac{5}{12 } \\ \tan(0) = 0.41666663066666 \\ 0 = {76}^{0} 30$

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3 years ago

Simplify 1/9-1/x<br> 1/81-1/x^2

tekilochka [14]

$\cfrac{ \frac{1}{9}- \frac{1}{x} }{ \frac{1}{81} - \frac{1}{x^2} }= \cfrac{ \frac{x-9}{9x} }{ \frac{x^2-81}{81x^2} }= \cfrac{x-9}{9x}* \cfrac{81x^2}{(x-9)(x+9)}= \cfrac{9x}{x+9}$

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3 years ago

Determine which of the lines, if any, are parallel. Explain.

algol13

Answer:

8) a and c

9) b and c

Step-by-step explanation:

Explanation and work are in the picture :)

7 0

3 years ago

CERTAIN ANSWERS ONLY!!! There should 4 answers, thank you in advance. It may be a bit difficult sorry. Thank you :)

yaroslaw [1]

Answer:

See Below.

Step-by-step explanation:

We are given that ∠1 and ∠7 are supplementary.

And we would like to prove that a is parallel to b.

Statements: Reasons:

$\textbf{\textsf{1. $\angle 1$ and $\angle 7$ are supplementary}}$ Given

$\textsf{2. $m\angle3$ + $m\angle 7$ $= 180$}$ Supplementary Angles

$\textsf{3. $\angle3$ and $\angle7$ are supplementary}$ Definition of Supplementary

$\textsf{4. }\bf{\angle 1 \cong \angle3}$ Congruent Supplements Theorem

$\textsf{5. }a\parallel b$ Corresponding Angles Converse

And we are done!

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3 years ago

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If a right circular cone is intersected by a plane only at its vertex, as in the

HACTEHA [7]

The answer is E. A circle

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3 years ago

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