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4 years ago

Answer to this please with EXPLANATION! BIG POINTS!!!

Mathematics

2 answers:

Yakvenalex [24]4 years ago

8 0

Answer:

x = 4.64 units

Step-by-step explanation:

cos(72) = x/15

x = 15cos(72)

x = 4.6352549156

tatyana61 [14]4 years ago

5 0

Firstly, you have to find beta, by using triginometric function cosinus. And then use beta in the Cosine Law. X has to be smaller than the hipothenuse.

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In triangle △ABC, ∠C is a right angle and CD is the altitude to AB. Find the angles in △CBD and △CAD if m∠A = 65°

adell [148]

Simple drawing shows that measure interior angle at B is 25 degrees.

Easily seen from a drawing are that measure of angle CBD is 25 degrees, and measure of angle CAD is 65 degrees (which was already given).

Heres the plot formula!

6 0

3 years ago

For brainiest:):):):):):):)

andrew-mc [135]

Answer:

15 = 0.025

16= 3 years

Step-by-step explanation:

15.

I=prt

15= (200)(r)(3)

200(3) = 600r

15 divided by 600r = 40 (0.025)

------------------------------------------------------

16.

I=prt

$t= \frac{I}{Ixp} \\t= \frac{90}{0.05x600} \\t= 3$

t= 3 years

5 0

3 years ago

y = x2 - 6x - 8 Complete the square in the quadratic equation in order to write the equation in vertex form.

Airida [17]

Answer:

y = (x-3)^2 - 17

Step-by-step explanation:

To complete the square, take the middle term bx and divide it in two. Then take the square.

x^2 - 6x - 8 has bx = -6x. Take -6/2 = -3. Square -3^2 = 9.

Now to finish completing the square add 9 and subtract 9 from one side.

y = x^2 - 6x - 8

y = (x^2 - 6x +9) -9 - 8

y = (x-3)^2 - 17

8 0

4 years ago

2. A serving of fish contains 50.0 g protein and 4.0 g fat. If protein has a caloric

solniwko [45]

9514 1404 393

Answer:

236 kcal

Step-by-step explanation:

(50 g protein)(4 kcal/(g protein)) +(4 g fat)(9 kcal/(g fat)) = (200 +36) kcal

= 236 kcal

8 0

3 years ago

Sarah starts with $375 in her savings account. After getting a part-time job, she deposits $90 every week. Write an equation sho

Valentin [98]

Answer:

y = 375 + 90x is the equation

4 0

3 years ago