All categories

3 years ago

I will mark brainliest for the 1st and second answer but I need this before midnight

Mathematics

1 answer:

lozanna [386]3 years ago

4 0

Answer:

A = arcsin(BC/AB) = arcsin(4/10) = ~23.58 deg

B = arccos(BC/AB) = arccos(4/10)= ~66.42 deg

AC = sqrt(AB^2-BC^2) = sqrt(10^2-4^2) = 9.16

A = 90-B=90-20 =70

AB = AC/sinC = 30/sin(20deg) = ~87.71

BC = sqrt(AB^2-AC^2) = sqrt(87.71^2-30^2) = ~82.42

AB = AC/cosA =125/cos(50deg) = ~194.46

B = 90-A = 90-50 =40

BC = sqrt(AB^2-AC^2) = sqrt(194.46^2-125^2) = ~148.96

AB = AC/cosA =8/cos(20deg) = ~8.51

B=90-A =90-20=70

BC = sqrt(AB^2-AC^2) = sqrt(8.51^2-8^2) =~2.90

You might be interested in

WHATS THE AREA PLSSSSS

ivanzaharov [21]

Answer:

34 in

Step-by-step explanation:

Trapezoid Area Formula: A= 1/2h (base 1 + Base 2)

A= 1/2(4)* (12+5)

A= 2 *(17)

A= 34 in

I hope this helped :)

7 0

3 years ago

Consider that a 1/2 cup serving of 1% cottage cheese is equivalent to 125 grams. If 1 ounce of cottage cheese is equivalent to 2

VikaD [51]

Answer:

4.42 ounces.

Step-by-step explanation:

We have been given that a 1/2 cup serving of 1% cottage cheese is equivalent to 125 grams. 1 ounce of cottage cheese is equivalent to 28.35 grams. We are asked to find the ounces in 1/2 cup serving.

We will use proportions to solve our given problem.

$\frac{\text{Ounce}}{\text{Grams}}=\frac{1}{28.25}$

Upon substituting our given values, we will get:

$\frac{\text{Ounce}}{125}=\frac{1}{28.25}$

$\frac{\text{Ounce}}{125}\times 125=\frac{1}{28.25}\times 125$

$\text{Ounce}=4.42477876$

Upon rounding to nearest hundredth, we will get:

$\text{Ounce}\approx 4.42$

Therefore, 1/2 cup serving contains 4.42 ounces.

7 0

3 years ago

The point P(15, 20) is on the terminal side of θ. Evaluate sin θ.

adell [148]

The sine rule will help you here.
On a unit circle, sin(Θ) would be the y-coordinate of point P (ie., 20). But we're not on the unit circle, so we'll have to divide 20 by the length of P (from the origin). The length of P = √(15²+20²) = 25.

So sin(Θ) = 20/25 = 0.8

7 0

4 years ago

Read 2 more answers

Please answer with clear instructions so that i can apply this to other questions

Mrrafil [7]

Answer:

1/6

Step-by-step explanation:

-1/m

-1/-6

1/6

4 0

3 years ago

Factor the Expression completely<br> -16x^2-6x^4

denpristay [2]

Answer: -2x^2 (3x^2 + 8)

Step-by-step explanation: a^b+c =a^b a^c

1) -16x^2 - 6x^ x^2

2) Rewrite -16 as -2 * 8

2.a Rewrite -6 as -2 * 3

= -2 * 8x^2 - 2 * 3x^2x^2

3) facter out common term: -2x^2

= ur answer

7 0

2 years ago