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mylen [45]
3 years ago
15

What invention lets you look right through a wall?

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
4 0
A window is the invention
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The cost of 7 scarves is $82.25. What is the unit price?
puteri [66]
82.25 divided by 7 is 11.75. Each scarf costs 11.75, this is the unit price.
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3 years ago
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Expression n' + 5n™ + 5n 2 when n = (-3).
aksik [14]

Answer:

Step-by-step explanation:

Here you go mate

Step 1

n' + 5n™ + 5n 2  equation

Step 2

n' + 5n™ + 5n 2  substitute n=-3

-3+(5)(-3)5(-3)2

step 3

-3+(5)(-3)5(-3)2   add and multiply

answer

27

5 0
3 years ago
A circle is dialated with a scale factor of 2/3. what is the area of the new circle if the area of the original circle is 45 squ
Sveta_85 [38]
Original Circle Area = 45

A = pi * r^2

Plug in what we know:

45 = 3.14 * r^2

Divide 3.14 to both sides:

14.3312102 = r^2

Find the square root of both sides:

r = 3.78565849

Find 2/3 of this:

2/3 * 3.78565849 = 2.52377233

So this is the radius of the newly dilated circle.

A = pi * r^2

A = 3.14 * 2.52377233^2

A = 3.14 * 6.36942677

A = 20

So the area of the newly dilated circle is 20 square inches.
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3 years ago
Which expression is equavilent to the epression -3(4x - 2) - 2x?
marusya05 [52]

Answer:

D

Step-by-step explanation:

-3(4x - 2) - 2x

-12x + 6 -2x

-14x + 6

5 0
2 years ago
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Elizabeth swims 50 feet in ten seconds. Jesse swims 110 feet in 20 seconds.
erica [24]

Answer: Jesse

Step-by-step explanation:

Elizabeth - 50f/10s

Jesse - 55f/10s

Reagan - 53.3333333/10s

Jesse is the fastest

5 0
3 years ago
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