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Leto [7]
3 years ago
6

OMG PLS HELP WITH THIS IM PANICKING OMG I GOT A F IN MATH MY MOM JUST YELLED AT ME IM CRYING PLS HELP WITH THS- PLSS TELL ME I A

LREADY DID THE TOP AND THE F. BTW SO NO NEED JUST PLS HELP IN THE OTHER QUESTIONS IN BOTTOM :(.. /C. D. AND E. PLS HELP :( /

Mathematics
1 answer:
ladessa [460]3 years ago
5 0

Answer:

Step-by-step explanation:

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What is the measure of B?
densk [106]

Answer:

40

Step-by-step explanation:

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A brother is 3 years older than his sister. Five years ago, the ratio of their ages was 4 : 3. Find the boy age.
Wewaii [24]
17 years old
12:9
12 + 5 is 17
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2 years ago
Graph the hyperbola y^2/16-x^2/9=1. What type of transverse axis does it have?
gulaghasi [49]
<span>Center(0,0)
a^2=16
a=4
b^2=9

b=3
c^2=a^2+b^2=16+9=25
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3 0
3 years ago
Find the vectors T, N, and B at the given point. r(t) = &lt; t^2, 2/3t^3, t &gt;, (1, 2/3 ,1)
maxonik [38]

Answer with Step-by-step explanation:

We are given that

r(t)=< t^2,\frac{2}{3}t^3,t >

We have to find T,N and B at the given point t > (1,2/3,1)

r'(t)=

\mid r'(t) \mid=\sqrt{(2t)^2+(2t^2)^2+1}=\sqrt{(2t^2+1)^2}=2t^2+1

T(t)=\frac{r'(t)}{\mid r'(t)\mid}=\frac{}{2t^2+1}

Now, substitute t=1

T(1)=\frac{}{2+1}=\frac{1}{3}

T'(t)=\frac{-4t}{(2t^2+1)^2} +\frac{1}{2t^2+1}

T'(1)=-\frac{4}{9}+\frac{1}{3}

T'(1)=\frac{1}{9}=

\mid T'(1)\mid=\sqrt{(\frac{-2}{9})^2+(\frac{4}{9})^2+(\frac{-4}{9})^2}=\sqrt{\frac{36}{81}}=\frac{2}{3}

N(1)=\frac{T'(1)}{\mid T'(1)\mid}

N(1)=\frac{}{\frac{2}{3}}=

N(1)=

B(1)=T(1)\times N(1)

B(1)=\begin{vmatrix}i&j&k\\\frac{2}{3}&\frac{2}{3}&\frac{1}{3}\\\frac{-1}{3}&\frac{2}{3}&\frac{-2}{3}\end{vmatrix}

B(1)=i(\frac{-4}{9}-\frac{2}{9})-j(\frac{-4}{9}+\frac{1}{3})+k(\frac{4}{9}+\frac{2}{9})

B(1)=-\frac{2}{3}i+\frac{1}{3}j+\frac{2}{3}k

B(1)=\frac{1}{3}

5 0
2 years ago
Pls helppppp! I'll give brainliest :))<br><br> 1/3y+6-2/3y
Vitek1552 [10]

Answer: 5.66666666667

Step-by-step explanation: Thanks and have a Savage day.

5 0
2 years ago
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