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2 years ago

15

"the advrage a of 2 numbers c and d is equal to half the sum of c and d " this whole qustion confuses the I am basically suppose

d to put it into a equation but it's just not clicking for me can you help?

1 answer:

olga_2 [115]2 years ago

8 0

Answer:

$\frac{c + d}{2}$

Step-by-step explanation:

this is the equation used to find the average of two numbers.

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How do I do this? <br> Tell me how you got the answer

kotykmax [81]

1: supplementary means 180 degrees so subtract 30 from 180 and angle b is 150 degrees.
2: complementary means 90 degrees so subtract 49 from 90 and the second angle is 41 degrees.
3: a right angle is 90 degrees.
4: congruent means same size same shape so if the first angle is 40 degrees then the second angle would also be 40 degrees.

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3 years ago

Pls help and explain

Rzqust [24]

Answer: C is closest to the correct answer

<u>Step-by-step explanation:</u>

Convert the inches into feet (12 inches equal 1 foot). Then convert the mixed fractions into improper fractions and multiply.

$11\ ft\ 2\ in=11\dfrac{2}{12}ft\qquad\longrightarrow \qquad11\dfrac{1}{6}ft\qquad =\qquad \dfrac{67}{6}\ ft\\\\\\9\ ft\ 10\ in= 9\dfrac{10}{12}ft\qquad\longrightarrow \qquad9\dfrac{5}{6}ft\qquad =\qquad \dfrac{59}{6}\ ft\\\\\\\dfrac{67}{6}\ ft\times \dfrac{59}{6}\ ft\times \dfrac{\$2.50}{ft^2}=\dfrac{\$9,882.50}{36}\qquad \longrightarrow \qquad \large\boxed{\$274.51}$

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2 years ago

What is the area of the blue rectangle at the top of the grid?

vovikov84 [41]

Answer: When a shape is drawn on a scaled grid you can find the area by counting the number of grid squares inside the shape. In this example, there are 10 grid squares inside the rectangle.

Step-by-step explanation:

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2 years ago

A rectangle is drawn so the width is 5 inches longer than

CaHeK987 [17]

Answer:

$length = l\\width = 5 + l\\Diagonal = 36\\diagonal^2 = (5+l)^2 + l^2\\36^2 = 25 + l^2 +10l + l^2\\1296 = 2l^2 +10l +25 \\2l^2 +10l=1271\\\\l_1=\frac{-10+2\sqrt{2567}}{2\cdot \:2},\:l_2=\frac{-10-2\sqrt{2567}}{2\cdot \:2}$

$l_1=\frac{-5+\sqrt{2567}}{2},\:l_2=\frac{-5-\sqrt{2567}}{2}$

clearly,

$l_{2} \ is \ a \ negative\ number$

So we consider

$l_{1} =\frac{-5+\sqrt{2567}}{2} = 22.83$

Therefore height = 22.8inches

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2 years ago

just as a piece of wood that is 8 foot long he needs to cut pieces that are seven eighths of a foot long how many pieces will he

BlackZzzverrR [31]

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3 years ago