2 years ago

I need help with #11. I've just started Trig today. The back of the book says the answer is 0.75 if that helps.

1 answer:

3 0

Hi,
BC²=CA²-BA²=13-9=4=2² (Pythagore)

CB/ED=AB/AD (Thalès)
2/2.5=3/AD==>AD=3*2.5/2=7.5/2
DB=DA-AB=7.5/2-3=0.75
I don't know how you call this 2 theorems (sorry)

You might be interested in

2x-10= -6<br> what is x i need help fast

larisa86 [58]

Answer: 2

Step-by-step explanation: add 10 to both sides so -10+10=0 and -6+10=4

then you have 2x=4 simplify

8 0

3 years ago

Glenda made a scale model of the Empire State Building in New York. The building itself is 1250 feet high, and her scale model i

Sunny_sXe [5.5K]

2i+5=1250. You subtract 5 from 1250 then divide 2 from whatever you get from the 5-1250

8 0

2 years ago

a 20 in tall hexagonal pyramid has a regular hexagon base that can be divide into six equilateral triangles with side lengths of

Klio2033 [76]

Answer:

Step-by-step explanation:

4 0

3 years ago

There are 15 animals in a barn. These animals are horses and chickens. There are 44 legs in all. Write a system of equations tha

olga55 [171]

Answer:

well

Step-by-step explanation:

44 legs and 15 animals you have to subtract

7 0

3 years ago

Approximate f by a Taylor polynomial with degree n at the number a. Step 1 The Taylor polynomial with degree n = 3 is T3(x) = f(

MAVERICK [17]

Answer:

If you center the series at x=1

$T_3(x) = e^2 + 4e^2 (x-1)+10(x-1)^2 + \frac{56}{3} e^2(x-1)^3 + R(x)$

Where $R(x)$ is the error.

Step-by-step explanation:

From the information given we know that

$f(x) = e^{2x^2}$

$f'(x) = 4x e^{2x^2}$ (This comes from the chain rule )

$f^{(2)}(x) = 4e^{2x^2} (4x^2+1)$ (This comes from the chain rule and the product rule)

$f^{(3)}(x) = 16xe^{2x^2}(4x^2 + 3)$ (This comes from the chain rule and the product rule)

If you center the series at x=1 then

$T_3(x) = e^2 + 4e^2 (x-1)+10(x-1)^2 + \frac{56}{3} e^2(x-1)^3 + R(x)$

Where $R(x)$ is the error.

3 0

2 years ago