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Semmy [17]
3 years ago
6

If i have a wall that ishe 13ft long (160in) and I want to evenly space 12, 12 in records across the top, How much space needshu

ttle to be between each record?
Mathematics
1 answer:
lorasvet [3.4K]3 years ago
4 0
How big are the records?
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What is 28% of 63%? Round your answer to the nearest tenth
Zina [86]

Answer: 17%

Step-by-step explanation:

1. First divide the percentages by 100 to turn the percentages into a decimal (28/100) x (63/100) = 0.1764

2. Then turn that decimal into a percentage again.

0.1764 x 100 = 17.64 but if you’re rounding to the nearest tenth without any decimals it’ll just be 17%

3 0
2 years ago
A clay block is 12 cm long 6cm wide and 2cm high and the density is 1.25cm3 what is the mass
Ksenya-84 [330]

Answer:

180

Step-by-step explanation:

formula density:

p =  \frac{m}{v}

find volume ..

v = 12 \times 6 \times 2  \\  = 144

subtitute into formula density..

1.25 =  \frac{m}{144}

m = 180

6 0
2 years ago
Please help! Use the Pythagorean theorem
Harrizon [31]

Answer:

its 10

Step-by-step explanation:

7 0
3 years ago
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Which is a point on the circle whose center is (0,0) and whose radius is 5? A. (0,0)
Temka [501]

Answer:

(3,4)

Step-by-step explanation:

x^2+y^2=(5)^2

if you graph it you will see that (3,4) is on the circle

4 0
2 years ago
Examine these points on line u and line v. Line u: (9, –8), (5, 4) Line v: (4, 2), (7, –7) How many points of intersection are t
musickatia [10]

Answer:

The line u and line v have no point of intersection because they are parallel lines

Step-by-step explanation:

The slope of a straight line is given as follows;

Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}

The slope of line u is (4 - (-8))/(5 - 9) = -3

The equation for line u is y - 4 = -3*(x - 5)

y = -3·x + 15 + 4 = 19 - 3·x

The slope for line v is (-7 - 2)/(7 - 4) = -3

The equation for the line v is y - 2 = -3*(x - 4)

∴ y = -3x + 12 + 2 = -3x + 14

y = 14 - 3·x

Therefore. line u and line v have the same slope and are therefore parallel and they do not intersect

6 0
3 years ago
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