3 years ago

I need help hereeeeeeee

Mathematics

1 answer:

Margarita [4]3 years ago

3 0

Answer:

Step-by-step explanation:

Um 2 of them are white.

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Please give an explanation!!!

lisabon 2012 [21]

Answer:

B) 5

Step-by-step explanation:

The area is the sum of three sections: rectangle and two same triangles

<u>Rectangle has sides of </u>

10 and 9 - 4 = 5

<u>Triangles have sides of </u>

4 and 10/2 = 5

The missing number is 5 for both parts of the equation

Correct option is B

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3 years ago

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A student gets paid to deliver newspapers after school. She earns 25$ a day, plus an extra $0.75 for each newspaper she delivers

disa [49]

Earnings = 25d + 0.75n + 5c

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3 years ago

Write the rational number as a decimal. Show your work. 5/9 -3/8 -3/11.

Bad White [126]

I have memorized facts about fractions like these, so can tell you ...

$\dfrac{5}{9}=0.5\overline{5}\\\\-\dfrac{3}{8}=-3\times 0.125=-0.375\\\\-\dfrac{3}{11}=-0.27\overline{27}$

_____

A fraction with 9 as a denominator is a repeating 1-digit decimal with the decimal digit being the numerator of the fraction.

A fraction with 11 as a denominator is a repeating 2-digit decimal with the two digits being 9 times the numerator of the fraction.

1/8 = 0.125, so any multiple of 1/8 is that multiple of 0.125.

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3 years ago

find the sum of a 9-term geometric sequence when the first term is 4 and the last term is 1,024 and select the correct answer be

olasank [31]

Hello,

$u_{1} =4\\
 u_{2} =4*q\\
 u_{3} =4*q^2\\
...\\

 u_{9} =4*q^8\\\\
==\textgreater\ 4*q^8=1024\\
==\textgreater\ q^8=256\\
==\textgreater\ q=2\mbox{( and there is a problem in the question) } \ or \ q=-2\\
if\ q=2 \ then\ \sum_{i=0}^{8}\ 4*(2)^i= 4*\dfrac{1-2^9}{1-2} =2044\\

if \ q=-2 \ then\ \sum_{i=0}^{8}\ 4*(-2)^i= 4*\dfrac{1-(-2)^9}{1+2} =684\\



$

Answer B (but see the problem)

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3 years ago

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A family earns $523 from a yard sale. They pay $45 in advertising fees. What's the family's profit from the yard sale Use formul

xeze [42]

$478 by using the provided formula ...
Explanation : income = $523 , expense = $ 45 , profit =523-45= 478

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3 years ago