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tiny-mole [99]
3 years ago
12

Find x (btw if you answer randomly to just get point imma report ur acc)​

Mathematics
2 answers:
Kay [80]3 years ago
6 0

Answer:

x=3

Step-by-step explanation:

the triangles are similar, set their congruent parts equal to one another (4/x=10/7.5). Cross multiply. Simplify.

remember to add 4 and 6 to get the full length of the larger triangle's side.

seropon [69]3 years ago
3 0

Answer:

x = 3

Step-by-step explanation:

..........................

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A sector of a circle has a central angle to 10° and arc length 28 pi units what is the radius of the circle
Dennis_Churaev [7]

Answer:

Radius = 504units

Step-by-step explanation:

Angle = 10°

Length of arc = 28π units

L = ∅/360 × 2πr

28π = 10/360 × 2πr

28π = 1/36 × 2πr

2πr = 28π × 36

π cancelled off.......

2r = 28 × 36

r = (28 × 36)/2

r = 28 × 18

r = 504units

8 0
2 years ago
R varies directly as S and inversely as T. if R = 8 when S = 4 and T = 3, then R is equal to ​
Alex

Answer:

R = 6S/T

Step-by-step explanation:

R ∝ S/ T

》R = kS/ T

》k = RT/ S

If R = 8 when S = 4 and T = 3

then, k = (8 × 3)/ 4

k = 6

∴ R = (6 × S)/ T

5 0
3 years ago
Which model is NOT a function? (i accidentally clicked on b ignore that lol)
olga_2 [115]

Answer:

C

Step-by-step explanation:

It's the only one where an x-axis has more than one y-axis.

I hope this explanation helps.

8 0
2 years ago
$37 dinner; 15% tip whats the total cost
kogti [31]
37*.15=5.55
37+5.55=42.55
4 0
2 years ago
Each morning, Hungry Harry eats some eggs. On any given morning, the number of eggs he eats is equally likely to be 1, 2, 3, 4,
mamaluj [8]

Answer:

Mean = 35

Variance = 291.7

Step-by-step explanation:

Data provided in the question:

X : 1, 2, 3, 4, 5, 6

All the data are independent

Thus,

The mean for this case will be given as:

Mean, E[X] = \frac{\textup{Sum of all the observations}}{\textup{Total number of observations}}

or

 E[X] = \frac{\textup{1+2+3+4+5+6}}{\textup{6}}

or

E[X] = 3.5

For 10 days, Mean = 3.5 × 10 = 35

And,

variance = E[X²] - ( E[X] )²

Now, for this case of independent value,

E[X²] = \frac{1^2+2^2+3^2+4^2+5^2+6^2}{\textup{6}}

or

E[X²] = \frac{1+4+9+16+25+36}{\textup{6}}

or

E[X²] = \frac{91}{\textup{6}}

or

E[X²] = 15.167

Therefore,

variance = E[X²] - ( E[X] )²

or

variance = 15.167 - 3.5²

or

Variance = 2.917

For 10 days = Variance × Days²

= 2.917 × 10²

= 291.7

3 0
3 years ago
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