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3 years ago

URGENT PLEASE ANSWER (NTH TERM), 15 POINTS + BRAINLIEST !! (fibonacci sequence , algebra, simple) show working out please

Mathematics

1 answer:

Gre4nikov [31]3 years ago

8 0

a) 1 1 2 3 5 8 13 21 34

So, nineth term is 34

b) a+2b+2a+3b=3a+5b

c) a= 3 b= 4

Work is on attachment.

Hope this helped!

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Please help with #8 !!

Sophie [7]

That would be 6.64 / 1.35 = 4.9 times (to the nearest tenth.)

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2 years ago

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What is the surface area? 10 cm 7 cm 3 cm square centimeters

alexandr1967 [171]

Answer:

242cm^2

Step-by-step explanation:

The formula for surface area of a rectangular(assuming that's what you have) is Perimeter of the Base(height) + 2(Area of the Base)

Or you could add up all the sides, or use this formula

SA=2(length*width)+2(length*height)+2(height*width)

2×(10×7 + 10×3 + 7×3)

helpful links:

https://www.khanacademy.org/math/ basic-geo/basic-geo-volume-sa/basic-geometry-surface-area/v/surface-area-of-a-box

http://www.math.com/tables/geometry/surfareas.htm

https://www.basic-mathematics.com/surface-area-formula.html

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2 years ago

What is 10 1/2 divided by 2 1/4

victus00 [196]

Answer:

4.666666667 or 4.6_ (repeating decimal)

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2 years ago

A rectangle has an area of x^2 -6x -7 and a width of x-7 what’s the length

iogann1982 [59]

Answer:

x+1

Step-by-step explanation:

We know that x^2 -6x-7 is the product of two binomials.

We can solve this two ways, but the easier way is to simply factor rather than divide the area by width.

Two numbers, one of which being -7 allows for the sum of -6 and the product of -7.

Using this information, we can identify the other number is 1, so the length is x+1.

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2 years ago

The equation (x-3)^2+(y+7)^2=64 models the position and range of the source of a radio signal. Describe the position of the sour

12345 [234]

$\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{}{ h},\stackrel{}{ k})\qquad \qquad 
radius=\stackrel{}{ r}\\\\
-------------------------------\\\\
(x-3)^2+(y+7)^2=64\implies [x-\stackrel{h}{3}]^2+[y-(\stackrel{k}{-7})]^2=\stackrel{r}{8^2}
\\\\\\
center~(3,-7)\qquad radius=8$

so, the broadcast location and range is more or less like the picture below.

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3 years ago

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URGENT PLEASE ANSWER (NTH TERM), 15 POINTS + BRAINLIEST !! (fibonacci sequence , algebra, simple) *show working out please*

URGENT PLEASE ANSWER (NTH TERM), 15 POINTS + BRAINLIEST !! (fibonacci sequence , algebra, simple) show working out please