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2 years ago

SMART PEOPLES HELP ME

Mathematics

1 answer:

enyata [817]2 years ago

8 0

Answer:

Step-by-step explanation:

There is no speckled section so it would be 0...

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50 POINTS! The fifth term of an arithmetic sequence is 11 and the tenth term is 41. What is the first term?

Oxana [17]

The common difference d is

(41–11) / (10–5) = 6.

The first term is

11 - 6(5–1) = -13.

so , the first term is -13 

4 0

2 years ago

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If a circle has a diameter of 44ft, what is the radius and circumference? Round to the nearest hundredth.

lara31 [8.8K]

Answer:

Radius: 22 Circumference: 138.23

Step-by-step explanation:

The radius is half of the diameter so 44/2 is 22.

The circumference can be found by 2*pi*r or pi*d.

$2\pi22$ or $\pi 44$

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3 years ago

The scale on a map says that 6 cm represents 15 km. What distance on the map in centimeters represents 20 kilometers?

ale4655 [162]

Answer:

8 centimeters.

Step-by-step explanation:

$6cm\ on\ map\ -> 15km\\$

Divide 3 both sides:

$2cm\ on\ map\ -> 5km$

Multiply 4 on both sides:

$8cm\ on\ map\ -> 20km$

8cm on the map represents 20km.

4 0

3 years ago

Find the difference between8/15 and 2/3 Show all calculations in your final answer.

kherson [118]

Answer:

$\frac{8}{15}-\left(\frac{-2}{3}\right)=\frac{6}{5}$

Step-by-step explanation:

Let the value of a number 'a' be = 8/15

Let the value of a number 'b' be = 2/3

The difference between the two numbers can be calculated by subtracting the numbers

$a-b=\frac{8}{15}-\left(\frac{-2}{3}\right)$

$\mathrm{Remove\:parentheses}:\quad \left(a\right)=a$

$=\frac{8}{15}-\frac{-2}{3}$

$\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}$

$=\frac{8}{15}-\left(-\frac{2}{3}\right)$

$\mathrm{Apply\:rule}\:-\left(-a\right)=a$

$=\frac{8}{15}+\frac{2}{3}$

$\mathrm{Since\:the\:denominators\:are\:equal,\:combine\:the\:fractions}:\quad \frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}$

$=\frac{8+10}{15}$

$=\frac{18}{15}$

$\mathrm{Cancel\:the\:common\:factor:}\:3$

$=\frac{6}{5}$

Thus,

$\frac{8}{15}-\left(\frac{-2}{3}\right)=\frac{6}{5}$

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2 years ago

Please help I will make you Brainliest (show working)

-Dominant- [34]

Answer:

44 Paper wrap; Add all numbers together

Step-by-step explanation:

Hope this helps

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2 years ago

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