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3 years ago

I need help on doing this

Mathematics

2 answers:

Rudik [331]3 years ago

7 0

Answer:

#5A=6

5B=4

Step-by-step explanation:

Helga [31]3 years ago

3 0

Answer:

5a) x=40 using the formulae for perimeter of a rectangle p=2(l+b)

120=2(l+20) factor out and you have 120=2l+40 make L subject of formulae then you have 2L=120-40 so L=80/2 L=40cm.

(5b) use the same procedure p=2(l+b) then L=250m.

6a) since both area and perimeter are give then using p=2(l+b), 20=2(L+B) so (L+b)=20/2 therefore (L+b)=10

Now introduce the formular for area which is A=L*B 24=L*B then making L sub of formular L=24/B substitute into (L+B)=10 then u have 24/B +B =10 find LCM you then have 24+B^2=10B this becomes a quadratic equation B^2 -10B +24 =0 solve and you have B=4 or 6. Substitute into (L+B)=10 to find L. L= 4 or 6

6b) use the same procedure as 6a.

L=2 or 12 and W =12 or 2

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What is the midpoint of the segment shown below?

d1i1m1o1n [39]

Answer:

Step-by-step explanation:

Calculate the midpoint using the midpoint formula

[ 0.5(x₁ + x₂ ), 0.5(y₁ + y₂ ) ]

with (x₁, y₁ ) = (- 1, 5) and (x₂, y₂ ) = (5, 5)

midpoint = [ 0.5(- 1 + 5), 0.5(5 + 5) ]

= [ 0.5(4), 0.5(10) ] = (2, 5 ) → A

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2 years ago

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A farmer has 2,928 strawberries. He has 24 boxes and wants an equal number of strawberries in each

melomori [17]

Answer:

122 strawberries

Step-by-step explanation:

divide 2928 by 24 to get the number of strawberries in each box

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3 years ago

Help me please help ASAP please please help me ASAP

IceJOKER [234]

answer:

39.9

Step-by-step explanation:

54= area of rectangle

28.26= area of the circle

divide circle area by 2

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subtract half of circle from rectangle area

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= 39.9

8 0

2 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

2 years ago

Which of the binomials below is a factor of this trinomial?

Elina [12.6K]

STEP-BY-STEP SOLUTION:

= x^2 - 13x + 30

= x^2 - 10x - 3x + 30

= x ( x - 10 ) - 3 ( x - 10 )

= ( x - 10 ) ( x - 3 )

FINAL ANSWER:

Therefore, the answer is:

C. x - 10

Please mark as brainliest if you found this helpful! :)
Thank you and have a lovely day! <3

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2 years ago

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