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sattari [20]
2 years ago
10

Which expression is equivalent to 52.2

Mathematics
1 answer:
murzikaleks [220]2 years ago
4 0

Answer:

Anwer is (z.50)+(z.2) since expanding it is z.52

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A triangular pyramid is formed from three right triangles as shown below.
juin [17]

Answer:

70

Step-by-step explanation:

RU=20 (45-45-90 triangle)

use pythagorean theorum

20^2+b^2=73^2

evaluate

b^2=4929

sq root both side

rounded to nearest integer, side SU is 70

8 0
2 years ago
19. Parkash had just enough money to buy 100 pencils. However, he bought only 70 pencils and had $4.50 left. What was the cost o
prisoha [69]

Answer:

since the unknown amount can buy 100 pencils

he bought 70 pencils

therefore $4.50 can buy 30 pencils

so 1 pencils cost $4.50 /30=0.15

7 0
2 years ago
Read 2 more answers
A clown creates an equation that relates his data of each child´s head size to the length of the balloon he needs to make them a
Mashcka [7]

Answer:

If x is the size of the child's head, 5 times that would be 5x and "plus 4/5" is + 4/5 so the equation is y = 5x + 4/5.

5 0
3 years ago
A toy baseball bat comes with 3 plastic balls. The balls are in a box that is a rectangular solid. The box is just big enough to
vodomira [7]

Answer:

31.4 in³

Step-by-step explanation:

The box is just big enough to hold the 3 balls, so it must have a length 6 times the radius of each ball, a width 2 times the radius, and a height 2 times the radius.

The volume of the box is:

V = (6r)(2r)(2r)

V = 24r³

The volume of the 3 balls is:

V = 3 (4/3 π r³)

V = 4πr³

So the volume of the air is:

V = 24r³ − 4πr³

V = (24 − 4π) r³

Since r = 1.4 inches:

V = (24 − 4π) (1.4 in)³

V ≈ 31.4 in³

5 0
2 years ago
Simplifying your answer
coldgirl [10]

Answer:

  -49

Step-by-step explanation:

In order to fill in the given expression, we need to know ...

  • f(-2) = -4
  • f(-3) = 5
  • f(-4) = 7
  • g(0) = -7
  • g(-3) = 3

Then the expression is ...

  √(5 -(-4)) -(-7)² +7÷(-7)·(3) = √9 -49 +7/(-7)(3)

  = 3 -49 +(-1)(3) = 3 -49 -3

  = -46 -3 = -49

7 0
2 years ago
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