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vivado [14]
3 years ago
8

Will give Brainliest!! pleases help, math.

Mathematics
1 answer:
oee [108]3 years ago
6 0

Answer:

a = sqrt(b^2 + c^2 - 2bc cosA) = sqrt(13^2 + 6^2 - 2 * 13 * 6 * cos 50) = sqrt(169 + 36 - 156 cos 50) ≈ sqrt(205 - 100.3) ≈ sqrt(104.7) ≈ 10.2

a ≈ 10.2

c / sin C = a / sin A

sin C = c sin A / a = 6 sin 50 / 10.2 ≈ 0.4491

C = arcsin(0.4491) ≈ 26.7

C ≈ 26.7°

B = 180 - A - C ≈ 180 - 50 - 26.7 ≈ 103.3

B ≈ 103.3°

Step-by-step explanation:

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vova2212 [387]

Answer:

You can buy 3 books 4 x 3 = 12

Step-by-step explanation:

8 0
3 years ago
In the figure below, △ A B C ∼△ D E F . BX and EY are altitudes of each triangle. Find the measure of EY to the nearest tenth.
Svetllana [295]

Answer:

EY≅ 5.33 cm (nearest to tenth)

Step-by-step explanation:

Two triangles are said to be similar to each other if they have the same shape

(not necessarily the same size) and their corresponding sides are in

proportion

Given that,

AB = 12

DE = 8

BX = 8

ΔABC ∼ ΔDEF means that

  1. ∠A ∼= ∠D, ∠B ∼=∠E and ∠C ∼= ∠F.
  2. Further more, their corresponding sides are in proportion.

So,

12/8 = 8/EY

(by doing cross multiplication)

12EY = 8 × 8

12EY = 64

EY = 64 / 12

EY= 5.3333

EY≅ 5.33 cm (nearest to tenth)

6 0
3 years ago
A circle centered at the origin has a radius
Arturiano [62]

Answer:

Step-by-step explanation:

cos~θ=5/13

3 0
3 years ago
$6,000 for 6 years at 8½% compounded daily will grow to ?
iren [92.7K]

When an amount P  is invested for t years during which it earns an interest of r dollars compounded  m times per year, the formula to calculate the amount that investment grows to after t years is,

A=P(1+\tfrac{r}{m})^{mt}.

Assuming that a years has 365 days ,the values for each of these variables is given as follows, m=365 ,t=6r=8.5\%=0.085 . The value of the investment after 6 years is then calculated as shown below,

A=P(1+\tfrac{r}{m})^{mt}\\A=6000(1+\tfrac{0.085}{365})^{(365\times 6)}\\A=9991.15

The investment grows to reach  $9991.15 in 6 years.



8 0
3 years ago
In circle N with m<br> See diagram below
Alex777 [14]

Answer:

113.10

Step-by-step explanation:

The area of a sector with measure \theta and radius r is given by A_{sec}=r^2\pi\cdot \frac{\theta}{360^{\circ}}.

What we're given:

  • r of 12
  • \theta of 90^{\circ}

Substituting given values, we get:

A_{sec}=12^2\pi\cdot \frac{90}{360},\\\\A_{sec}=144\pi\cdot \frac{1}{4},\\\\A_{sec}\approx \boxed{113.10}

8 0
3 years ago
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