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maria [59]
2 years ago
14

What is the value of this expression plssssss 8z-3 when z =7

Mathematics
2 answers:
oksano4ka [1.4K]2 years ago
7 0

Answer:

53

Step-by-step explanation:

8•7 is 56

56 - 3 is 53

4vir4ik [10]2 years ago
4 0

Answer:

53

Step-by-step explanation:

z = 7

8z is the same as saying 8×z

8×7-3 (do multiplication first)

56-3 = 53

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How to find the height of a 30-60-90 triangle with hypotenuse = 8, and base = 8sqrt.3. Please help find answer fast!
Daniel [21]
For a 30-60-90 triangle
if the shorter leg (oposite 30 degrees) is x then the other leg is x√3 and the hyptonuse is 2x

so
hyptonuse=8
8=2x
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so shorter leg or height will be 4 units
5 0
3 years ago
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olganol [36]
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6 0
2 years ago
It’s not C and I suck at math can someone plz help me on this plz and thx
Fittoniya [83]

Answer:

a

Step-by-step explanation:

The volume (V) of a cone is calculated as

V = πr²h ( r is the base radius and h the perpendicular height )

To calculate the height h use the right triangle formed by the radius and the inclined side.

Given diameter = 22, then r = 22 ÷ 2 = 11 cm

Using Pythagoras' identity on the right triangle, then

h² + 11² = 61² , that is

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h² = 3600 ( take the square root of both sides )

h = \sqrt{3600} = 60

Thus

V = π × 11² × 60

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7 0
3 years ago
John has a piece of string that is 634 inches long, and Kerry has a piece of string that is 712
omeli [17]

Answer:

¾

Step-by-step explanation:

Length of Kerry string = 7(½) = 15/2

Length of John string = 6(¾) = 27/4

15/2 - 27/4

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4 0
3 years ago
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