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OLEGan [10]
3 years ago
8

Number 1. Based on the marks, what can you assume to be true in each figure?

Mathematics
2 answers:
Softa [21]3 years ago
6 0
D. Side QF is congruent to side PN. The shape is a rectangle
lakkis [162]3 years ago
3 0
These marks are used in geometry to symbolize congruence. If two sides or two angles are congruent, they are assigned with the same symbol.

A. Side AD is congruent to Side  CB
B. Side HE is congruent to side HG. Side EF is congruent to Side GF.
C. The base angles are congruent. 
D. Side QF is congruent to Side MN, and Side QM is congruent to Side PN. The shape is a rectangle.
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Find the range of the line
navik [9.2K]

Answer:

(-10,3),(9,0)

Step-by-step explanation:

5 0
3 years ago
Find the vectors T, N, and B at the given point. r(t) = < t^2, 2/3t^3, t >, (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
3 years ago
Convert 45 kilograms to grams​
olga55 [171]
450000 see man I no
8 0
3 years ago
One less than a number, which is then divided by 5, is -7. What is the number?
Paladinen [302]

Answer:

Work backwords.

-7*5=-35

-35-1=-36.

5 0
3 years ago
Read 2 more answers
2/15 + 27/35 = what in reduced terms
solniwko [45]

2/15 + 27/35 = 14+81 /105 = 95/105 = 19/21

so, your answer is 19/21

8 0
4 years ago
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