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3 years ago

The three trigonometric functions can be used to calculate unknown side lengths and angles in which type of triangle(s)?

Mathematics

2 answers:

hichkok12 [17]3 years ago

7 0

Answer:

The inverse trigonometric functions (sin-1, cos-1, and tan-1)

Mama L [17]3 years ago

5 0

Triangles with a 90 degree angle. We use the sine, cosine and tangent functions to determine the missing angles and sides.

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3. Conner has $25,000 in his bank account.Every month he spends $1,500.he does not add money to the account.1)Write a linear mod

cupoosta [38]

$1500 \times 8 = 12000$
$25000 - 12000 = 13000$
there you go in 8 months conner will have 13000 after 8 months

5 0

3 years ago

How do I evaluate the expression? What steps do I take?

Bingel [31]

Answer:

$\frac{4+8-2}{6-4}*3-1=\frac{12-2}{2}*3-1\\\\=\frac{10}{2}*3-1=5*3-1=15-1=14$

Step-by-step explanation:

8 0

3 years ago

PLEASE ANSWER WITH AN EXPLANATION! THANK YOU

lubasha [3.4K]

Answer:

$\large\boxed{A=153\ cm^2}$

Step-by-step explanation:

<em>Look at the picture.</em>

We have

square with side length a = 9

trapezoid with base lengths b₁ = 9 and b₂ = 6 and the height length h = 6

right triangle with legs lengths l₁ = 3 + 6 = 9 and l₂ = 6

The formula of an area of a square

$A=a^2$

Substitute:

$A_I=9^2=81\ cm^2$

The formula of an area of a trapezoid:

$A=\dfrac{b_1+b_2}{2}\cdot h$

Substitute:

$A_{II}=\dfrac{9+6}{2}\cdot6=\dfrac{15}{2\!\!\!\!\diagup_1}\cdot6\!\!\!\!\diagup^3=(15)(3)=45\ cm^2$

The formula of an area of a right triangle:

$A=\dfrac{l_1l_2}{2}$

Substitute:

$A_{III}=\dfrac{(9)(6)}{2}=\dfrac{54}{2}=27\ cm^2$

The area of the shape:

$A=A_I+A_{II}+A_{III}\\\\A=81+45+27=153\ cm^2$

8 0

3 years ago

Factor completely 5b^2-11b+6

vekshin1

Answer:

(b - 1) (5b - 6)

Step-by-step explanation:

3 0

3 years ago

A hiker at a state park climbs to a ridge 1,220 feet higher than where she left the car. Then she hikes 670 feet down a steep cl

DedPeter [7]

Answer:

549 ft

Step-by-step explanation:

take 670ft away from 1,220 ft ( not all the way sure of I'm right)

6 0

3 years ago