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Sergeu [11.5K]
3 years ago
15

Please help please !!!

Mathematics
1 answer:
Kobotan [32]3 years ago
6 0
<h3>Answer:  12</h3>

========================================================

Explanation:

You can use the AAS (angle angle side) theorem to prove that triangle ABD is congruent to triangle CBD.

From there, we can then say that AD and DC are the same length

AD = DC

3y+6 = 5y-18

3y-5y = -18-6

-2y = -24

y = (-24)/(-2)

y = 12

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nikitadnepr [17]

Answer:

5,4

Step-by-step explanation:

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4 years ago
438<br>x 56<br><br><br>equels what?​
Naily [24]

Answer:

24528

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
0.85 0.88 0.88 1.06 1.09 1.12 1.29 1.31 1.42 1.49 1.59 1.62 1.65 1.71 1.76 1.83 Assume that the distribution of coating thicknes
iren2701 [21]

Answer:

μ = 1.3468

Step-by-step explanation:

Given data:

Observations

0.85

0.88

0.88

1.06

1.09

1.12

1.29

1.31

1.42

1.49

1.59

1.62

1.65

1.71

1.76

1.83

sum of the observations = 21.55

now,

the total number of the given data, n = 16

now, the mean is given as:

Mean = (Sum of all the observation) / (Total number of observations)

on substituting the values in the above formula, we get

Mean = 21.55 / 16

or

Mean = 1.3468

Since, it is given that the data follows normal distribution.

thus, the normal mean can be used as the point of estimator (μ)

i.e μ = 1.3468

3 0
3 years ago
If f(x) = one-half left-bracket x right-bracket, what is f(7.6)? 3 3.5 3.8 4
Anton [14]

This is a method of substituting values into a given function. The value of the function f x is 7.6 is 3.8

<h3>Functions and values</h3>

Given the following function expressed as:

f(x) = 1/2(x)

We are to determine the value of f(7.6). Substitute x = 7.6 into the function as shown:

f(7.6) = 1/2(7.6)

f(7.6) = 7.6/2

f(7.6) = 3.8

Hence the value of the function f x is 7.6 is 3.8

Learn more on functions and values here:brainly.com/question/6561461

#SPJ4

5 0
2 years ago
Analyse the table of values. The variable, T, represents the quantity (L) of gas in a tank and the variable, d, represents the d
Deffense [45]

Answer:

The answer is below

Step-by-step explanation:

The equation of a straight line is given by:

y = mx + b;

where y, x are variables, m is the rate of change and b is the y intercept.

a) d is on the x axis and T is on the y axis, the rate of change is gotten using the points (0, 75) and (300, 37.5). Hence the rate of change (m) is:

m=\frac{y_2-y_1}{x_2-x_1} =\frac{37.5-75}{300-0} =-0.125

b) The rate of change means that the quantity of gas in tank decreases by 0.125 for every km traveled.

c) The graph was plotted using geogebra online graphing tool.

d) Using the points (0, 75) and (300, 37.5), the equation of the line is:

T-T_1=\frac{T_2-T_1}{d_2-d_1}(x-x_1) \\\\T-75=\frac{37.5-75}{300-0}(d-0)\\\\T=-0.125d+75

The tank is empty when T = 0, hence:

0 = -0.125d + 75

0.125d = 75

d = 600 km

The tank is empty at 600 km

5 0
3 years ago
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