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Mathematics

2 answers:

butalik [34]2 years ago

4 0

Answer is tan inverse6/7

lozanna [386]2 years ago

3 0

Answer:

41°

Step-by-step explanation:

SOHCAHTOA

Sine = Opposite / Hypotenuse

Cosine = Adjacent / Hypotenuse

Tangent = Opposite / Adjacent

tanx = opp / adj

opposite from angle x is 12 centimeter side

adjacent to angle x is 14 centimeter side

the other side is the hypotenuse because it is opposite the right angle

tanx = 12 / 14

use the inverse tangent button (usually press 2nd or shift on calculator and then press tangent button):

Type in calculator: $tan^{-1}(\frac{12}{14})$

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Find the least common denominator (LCD) of <br> 1/10<br> and <br> 8/15<br> .

wlad13 [49]

I think the answer is 5 bc u 10 and 15 are both in that same “place”. But ya I think it’s 5

7 0

3 years ago

Trapezoid ABCD has an area of 525 cm squared. If height AB = 21 cm and BC = 37 cm, what is the measure of AD?

Annette [7]

Answer:

AD = 13

Step-by-step explanation:

Area of trapezoid ABCD

$= \frac{1}{2} (AB + AD) \times AB \\ \\ 525= \frac{1}{2} (37+ AD) \times21\\ \\ 525 \times 2= (37+ AD) \times21 \\ \\ 1050 = 21 \times 37 + 21AD \\ \\ 1050 = 777+ 21AD \\ \\ 21AD = 1050 - 777 \\ \\ 21AD = 273 \\ \\ AD = \frac{273}{21} \\ \\ AD = 13$