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AVprozaik [17]
3 years ago
5

9(-4-3)=? Please help

Mathematics
2 answers:
Annette [7]3 years ago
5 0
This is the answer 9(-4-3) = -63
Vlad1618 [11]3 years ago
3 0

Answer:-63

Step-by-step explanation:

can i get a brainliest

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Identify the new perimeter of the square using a scale factor of 1/3
Verizon [17]

Answer:

5

Step-by-step explanation:

15 × \frac{1}{3} = 5

5 0
2 years ago
Jocelyn estimates that a piece of wood measures 5.5 cm. If it actually measures 5.62 cm, what is the percent error of Jocelyn's
Vadim26 [7]

Answer:

is d

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Volume of a cone = r²h,
inessss [21]

Answer:

7.5 m           457.5\pi m^{2}

Step-by-step explanation:

First, visualize the original cone and the smaller cone as overlapping similar triangles. The scale factor of the original cone to the smaller cone is 50:40, so if the smaller cone has a radius of 6 m, then the radius of the original cone would be 7.5 m.

The volume of the frustum is the volume of the original cone minus the volume of the smaller cone. The formula for the volume of a cone is V = \frac{1}{3} \pi r^{2}h.

Original Cone = \frac{1}{3} \pi r^{2}h = \frac{1}{3} \pi *7.5^{2}*50 = 937.5\pi

Smaller Cone = \frac{1}{3} \pi r^{2}h =  \frac{1}{3} \pi *6^{2}*40 = 480\pi

Frustum = 937.5\pi - 480\pi = 457.5\pi

6 0
2 years ago
Marking as brainliest!!!
strojnjashka [21]
The answer should be 9 rounded because 2 pi r 56.5 will give u that.
7 0
2 years ago
The price of an item is reduced 70% the original price $90 what is the price now?
uranmaximum [27]
90 - (90 × .7) = $27

hope this helps
7 0
3 years ago
Read 2 more answers
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