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Elodia [21]
3 years ago
5

8. A dolphin in an aquarium is 12 feet long. A scale model

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
8 0

41.14  or 3.5inches over 144inches

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Find T, N, and B for the curve at the indicated point. [HINT: After finding T', plug in the specific value for t before computin
lyudmila [28]

Answer:

Step-by-step explanation:

Given that

r(t) = (t,t,e^t)

To find tangent, normal and binormal vectors at (0,0,1)

i) Tangent vector

r'(t) = (1,1,e^t)\\

At the particular point, r'(t) = (1,1,e)

Tangent vector = \frac{r'(t)}{||r'(t)||} \\=\frac{(1,1,e)}{\sqrt{1+1+e^2} } \\=\frac{(1,1,e)}{\sqrt{2+e^2} }

ii) Normal vector

T'(t) = (0,0,e^t)\\

At that point T'(t) = (0,0,e)/e = (0,0,1)

iii) Binormal

B(t) = TX N

= \left[\begin{array}{ccc}i&j&k\\1&1&e^t\\0&0&e^t\end{array}\right] \\= e^t(i-j)

8 0
4 years ago
What is the solution to -3a-4
Aleksandr-060686 [28]

Answer:

answer is 7a proved

Step-by-step explanation:

sloution

=-3a-4

=-+- =+ so,

=-3a-4

=7a

mark me as brainlist

8 0
3 years ago
Colin invests £2350 into a savings account. The bank gives 4.2% compound interest for the first 4 years and 4.9% thereafter. How
Rzqust [24]

Answer:

£3692

Step-by-step explanation:

A = p(1 + r/n)^nt

Where,

A = future value

P = principal = £2350

r = interest rate = 4.2% = 0.042

n = number of periods = 1(annual)

t = time = 4 years

A = p(1 + r/n)^nt

= 2350(1 + 0.042/1)^1*4

= 2350(1 + 0.042)^4

= 2350(1.042)^4

= 2350(1.5789)

= 2770.42

A = £2770.42

Total years = 10

Remaining years = 10 - 4

= 6 years

Remaining 6 years

P = £2770.42

r = 4.9% = 0.049

n = 1

t = 6

A = p(1 + r/n)^nt

= 2770.42(1 + 0.049/1)^1*6

= 2770.42(1 + 0.049)^6

= 2770.42(1.049)^6

= 2770.42(1.3325)

= 3691.59

A = £3691.59

Approximately £3692

6 0
3 years ago
HELP BRAINLIEST PLEASE!!!!!!!!
Tresset [83]

Answer:

12/25

Step-by-step explanation:

there are 24 'T's out of 50

3 0
3 years ago
(10 points) Given that for simplicity that the number of children in a family is 1, 2, 3, or 4, with probability 1/4 each. Littl
sesenic [268]
1/4 ... it’s 2 because 1/4 is it yep ya it’s right
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3 years ago
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