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4 years ago

I need help please and thank you

Mathematics

2 answers:

dem82 [27]4 years ago

6 0

So we see that the ratio between the two octagons is 7:1, since 28/4=7 so what we do next is multiply the values of the smaller octagon by 7. But that’s the long way. There’s actually a shortcut by multiplying the perimeter of the smaller octagon, 34, by 7. This in turn equals 238.

vfiekz [6]4 years ago

4 0

Answer:

238

Step-by-step explanation:

you have to find the value of each side;

When the question said it is similar,means that either the image is being enlarged or reduced in size

It is given that if the side is 4 in the smaller octagen,the side will be 28 in the larger octagon

Here you can make a ratio and do propotion like what i did.

After finding all value of the sides,add it all up and you can find the perimeter for the larger octagon

Hope this helps!

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If [infinity] cn8n n = 0 is convergent, can we conclude that each of the following series is convergent? (a) [infinity] cn(−3)n

pashok25 [27]

Answer:

a) we know that this is convergent.

b) we know that this might not converge.

Step-by-step explanation:

Given the $\sum^\infty_{n=0}C_n8^n$ is convergent

Therefore,

(a) $\sum^\infty_{n=0}C_n(-3)^n$ The power series $\sum C_nx^n$ has radius of convergence at least as big as 8. So we definitely know it converges for all x satisfying -8<x≤8. In particular for x = -3

∴ $\sum^\infty_{n=0}C_n(-3)^n$ is convergent.

(b) $\sum^\infty_{n=0}C_n(-8)^n$ -8 could be right on the edge of the interval of convergence, and so might not converge

8 0

3 years ago

Please answer both questions and show all work with explanations :) thank you soo much...

torisob [31]

Answer:

1) 109 cm

2) 120 in²

Step-by-step explanation:

A rectangle is a quadrilateral with opposite sides the same length and four (4) right angles. The diagonal, together with two adjacent sides, forms a right triangle. The relationship between side lengths and the diagonal length is given by the Pythagorean theorem. If sides are "a" and "b" and the diagonal is "c", that theorem tells you ...

... c² = a² + b²

1) c² = (60 cm)² + (91 cm)² = 11881 cm²

... c = √11881 cm = 109 cm

2) The perimeter is double the sum of adjacent side lengths, so ...

... 2(a+b) = 46 in

... a + b = 23 in . . . . . divide by 2

The Pythagorean theorem tells you

... a² + b² = (17 in)²

Squaring the equation from the perimeter relation gives ...

... (a + b)² = (23 in)² = a² + 2ab + b²

Subtracting a² + b², we have

... (a² +2ab +b²) - (a² + b²) = (23 in)² -(17 in)²

... 2ab = (529 -289) in² = 240 in² . . . . . simplify

... 240 in²/2 = ab = 120 in² . . . . . area is the product of length and width

_____

We could solve the two equations for a and b to find that there are two possible solutions: (a, b) = (8, 15) or (15, 8). Either way, ab = 8·15 = 120.

7 0

3 years ago

What is the x-intercept ?

OleMash [197]

Answer:

-3

Step-by-step explanation:

3 0

3 years ago

Please help me! I got to get this done quickly! WILL GIVE BRAINLIEST

asambeis [7]

Answer:

x=29

Step-by-step explanation:

(x+3)+(x-1)+(x+1)=90

x+3+x-1+x+1=90

3x+3=90

3x=90-3

x=87/3

x=29

x+3=32

x+1=30

x-1=28

Checking

(x+3)+(x-1)+(x+1)=90

(29+3)+(29-1)+(29+1)=90

32+28+30=90

90=90

8 0

4 years ago

Jenny is packaging fruit. she has 349 apples. 328 pears, 548 oranges. if she puts 4 pieces of fruit in each package. how many fu

aleksley [76]

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6 0

4 years ago

Read 2 more answers