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3 years ago

6

35 POINTS: TRIGONOMETRY: Find each side marked with a letter. All lengths are in centimetres. kindly include the working since I

know the answer. (26.2cm)

1 answer:

gizmo_the_mogwai [7]3 years ago

4 0

Answer:

Step-by-step explanation:

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Help me plzzzz, trigonometry!! I'll give brainliest!!!

Naddika [18.5K]

Answer:

Step-by-step explanation:

tan47=x/18

x=18tan47

cosCDB=7/x

cosCDB=7/(18tan47)

CDB=arccos(7/(18tan47))

CDB=68.74

4 0

3 years ago

I don't know how to do this. Can someone explain how to please?

Natalija [7]

Answer:

f(5) = -2

Step-by-step explanation:

You look on the x-axis for 5 because f(5) means let x = 5. Then go down to the graph (the red zig-zaggy line) At the red line (you're still directly under the 5) look over to the y-axis to find the value. That's your answer. It is -2. The point (5, -2) is on the red graph.

f(5) = -2

3 0

2 years ago

Samuel and Zander together have $392. Samuel has six times as much money as Zander. How much does each have? Please help! Quick

Shalnov [3]

Answer:

Samuel has $336 and Zander has $56

Step-by-step explanation:

Samuel = 6x because he has 6 times Zander

Zander = x

Together they have 392

6x + x = 392

7x = 392

Divide both sides by 7

x = 56

Samuel = 6 x 56 = 336

Zander = 56

336 + 56 = 392

3 0

3 years ago

Imagine that you need to compute e^0.4 but you have no calculator or other aid to enable you to compute it exactly, only paper a

labwork [276]

Answer:

0.0032

Step-by-step explanation:

We need to compute $e^{0.4}$ by the help of third-degree Taylor polynomial that is expanded around at x = 0.

Given :

$e^{0.4}$ < e < 3

Therefore, the Taylor's Error Bound formula is given by :

$|\text{Error}| \leq \frac{M}{(N+1)!} |x-a|^{N+1}$ , where $M=|F^{N+1}(x)|$

$\leq \frac{3}{(3+1)!} |-0.4|^4$

$\leq \frac{3}{24} \times (0.4)^4$

$\leq 0.0032$

Therefore, |Error| ≤ 0.0032

4 0

3 years ago

What is the sum of the first ten terms of the sequence 4, -12, 36, -144 ...?

frez [133]

Answer:

−19810916

Step-by-step explanation:

plz vote my answer the brainiest, i rlly need it thanks!

hope this helps!

7 0

3 years ago