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nlexa [21]
2 years ago
7

Pls help i need help :D

Mathematics
1 answer:
docker41 [41]2 years ago
8 0

Answer:

\frac{2808}{3125}

Step-by-step explanation:

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i’m order for a graph to be proportional it must cross through the origin. A.true B.false
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Answer:

True

Step-by-step explanation:

Key idea: the graph of a proportional relationship is a straight line through the origin.

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2 years ago
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the ratio of the number of adults to the number of children in a library is 12:5 if there are 45 children in the library how my
anygoal [31]
I’m guessing 108. 45 divided by 5 is 9, so 9 times 12 is 108.
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in how many ways of the permutations of 10 different things taken 4 at a time will one particular thing always occur​
olganol [36]

Answer:

do as direct

which one of the following is square of 4

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4 0
3 years ago
Find the surface area of the figure?
motikmotik

Step-by-step explanation:

the surface area consists of 6 individual areas :

front and back (both are equal)

left and right (both are equal)

top and bottom

front and back are trapezoids.

the area of a trapezoid is

(base 1 + base 2)/2 × h

the bases are the 2 parallel sides.

in our case the area of one trapezoid is

(5 + 19)/2 × 12.1 = 145.2 ft²

front and back together then are 290.4 ft².

left and right are 8×14 rectangles:

8×14 = 112 ft²

together they are 224 ft².

the bottom is a 5×8 rectangle :

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the top is a 19×8 rectangle :

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so, the total surface area is

290.4 + 224 + 40 + 152 = 706.4 ft²

4 0
2 years ago
Write and solve a proportion to answer the question.
Alexeev081 [22]

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12 devided by 25 then multiply by 100

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