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3 years ago

BRAINLIEST + Points! Help in need and please explain!

Mathematics

2 answers:

Aleonysh [2.5K]3 years ago

8 0

Answer

If 60% students read 4 books, then 120 students read 2 books

(# of students read 2 books is double the # of students read 4 books)

Elanso [62]3 years ago

4 0

C., because 60 is half of 120, and 12% is half of 24%

hope it is right

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What is the value of hin the figure below? In this diagram, ABAD ~ ACBD.

VashaNatasha [74]

Answer:

F. 8

Step-by-step explanation:

The ratio of the long side to the short side is the same in similar triangles. The long side of triangle BAD is AD, which has length 20-4 = 16.

BD/DE = AD/BD

h/4 = 16/h

h^2 = 64 . . . . . . . multiply by 4h

h = 8 . . . . . . . . . . take the square root (matches selection F)

_____

Comment on this geometry

BD = √(AD·DC) is called the "geometric mean" of the segments AD and DC. This geometry has some other geometric mean relationships as well:

BC = √(AC·DC)

BA = √(AC·AD)

8 0

3 years ago

The difference of six times a number and 7 is -49

gtnhenbr [62]

Greetings!

"The difference of six times a number and 7 is -49"...

In number and variables, this would be:
 $6x-7=-49
$

Add 7 to both sides.
 $(6x-7)+7=(-49)+7$
Simplify.
 $6x=-42$
Divide both sides by 6.
$(6x)/6=(-42)/6$
Simplify.
$x=-7$

Hope this helps.
-Benjamin

5 0

3 years ago

A gardener needs to move 2,782 pounds of dirt. He can carry 96 pounds in his wheelbarrow. How many trips will he need to make wi

svp [43]

Answer:

28.9

Step-by-step explanation:

2782 divied by 96 gives you 28.9.

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3 years ago

What Is The Area Of This Trapezoid?

DerKrebs [107]

80 square units
______________________________________________
The Formula for the area of a trapezoid is A= (a+b/2)h

A= 3+17/2 (8)
A= 20/2 (8)
A= 10 (8)
A = 80

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3 years ago

HURRY, PLEASE HELP!

Lynna [10]

Answer:

A) y=-3sin(x)

Step-by-step explanation:

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3 years ago

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