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poizon [28]
2 years ago
11

???????????????????????​

Mathematics
1 answer:
lutik1710 [3]2 years ago
3 0

Answer:

try

Step-by-step explanation:

try solving it on ur own or take a educated guess

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PLEASE HELP!!!! 20 POINTS!!!
Vlad1618 [11]
Mass = density* volume
since density= mass/volume then mass/volume*volume=mass
= 4.5*0.4 =  1.80g

6 0
3 years ago
What equation(s) represent joint variations? check all that apply c=2pi z=3x/y y=3x+2 w=abc/4 v=lwh
Alinara [238K]

Answer:

Step-by-step explanation:

Joint variations occurs when one variable depends on the value of two or more variables. The variable varies directly or indirectly with the other variables combined together. The other variables are held constant. From the given examples, the equation(s) that represent joint variations are

1) z = 3x/y

z varies directly with x and inversely with y.

2) w = abc/4

w varies inversely with a,b and c. 4 is the value of the constant of variation.

7 0
3 years ago
Trigonometry... hellpp plzzz​
rjkz [21]

Answer:

17.1 degrees

Step-by-step explanation:

This is a tangent question because angle XYZ is adjacent to 13 and opposite of 4. This means that we will have to use opposite/adjacent. This is very simple if you know the formula. Just plug those numbers in to get 4/13 = 0.3076923076923077. However, now we need to find it in degrees. If you have an inverse calculator near you, you would plug it in to get about 17.10, which rounds to 17.1.

8 0
3 years ago
Read 2 more answers
Betty tabulated the miles-per-gallon values for her car as 26.5, 28, 30.2, 29.6, 32.3, and 24.7. The sample standard deviation i
Viefleur [7K]

Answer:

3.188

Step-by-step explanation:

Given that :

Sample data: 26.5, 28, 30.2, 29.6, 32.3, 24.7

Sample standard deviation (s) = 2.728

Mean (mu) = 25

Tstatistic formula :

(x - mu) / (s/sqrt(n))

n = sample size = 6 ; s = 2.728 ; mu = 25

Sample mean (x) = (26.5 + 28 + 30.2 + 29.6 + 32.3 + 24.7) / 6

Sample mean (x) = 171.3 / 6 = 28.55

Tstatistic = (28.55 - 25) / (2.728 / sqrt(6))

Tstatistic = 3.55 / 1.1137013

Tstatistic = 3.1875692

3 0
2 years ago
27millimeters. 1cm/10mm
Alla [95]
If you would like to know how many centimeters are 27 millimeters, you can calculate this using the following steps:

1 cm ... 10 mm
x cm = ? ... 27 mm

1 * 27 = 10 * x
27 = 10 * x    /10
x = 27/10
x = 2.7 cm

The correct result would be 2.7 cm.
5 0
3 years ago
Read 2 more answers
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