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Natalka [10]
2 years ago
13

The value of -8/15 · 20/64 is _____. 1) -1/6 2) 1/6 3) 2/3 4) -2/3

Mathematics
1 answer:
mezya [45]2 years ago
8 0
-160/960 which reduces to -1/6
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The slope of diagonal OA is ? and its equation is ?
Nimfa-mama [501]

Answer:

Slope = \frac{4}{3}

Equation of the line → y=\frac{4}{3}x

Step-by-step explanation:

Let the equation of diagonal OA is,

y = mx + b

Here, m = Slope of the line OA

b = y-intercept

Slope of a line passing through two points (x_1,y_1) and (x_2,y_2) is given by,

m = \frac{y_2-y_1}{x_2-x_1}

Therefore, slope of the line passing through O(0, 0) and A(3, 4) will be,

m = \frac{4-0}{3-0}

m = \frac{4}{3}

Since, line OA is passing through the origin, y-intercept will be 0.

Therefore, equation of OA will be,

y=\frac{4}{3}x

3 0
2 years ago
Match the line segments with their lengths. If necessary, round your answers to the nearest hundredth. PLEASE HELP ME
Stella [2.4K]

Answer:

the fourth one

Step-by-step explanation:

7 0
2 years ago
Peter opens a new bookstore and pays the book publisher $3.00 for each book he buys from them. The amount Peter pays is given by
melisa1 [442]
F(x) = 3x ; where x is the number of books purchased.

x  f(x)
0    0
1    3
2    6
3    9
4   12
5   15

I saw this problem and the instruction was to graph the function and show the domain and range. 

The domain is all the x-values while the range is all the y-values.
7 0
2 years ago
Really important please help #8
Paladinen [302]
B is the answer! Enjoy getting it correct!! :)
5 0
2 years ago
A study of the amount of time it takes a mechanic to rebuild the transmission for a 1992 Chevrolet Cavalier shows that the mean
Nana76 [90]

Answer: 0.0026

Step-by-step explanation:

Given: Mean : \mu=8.4\text{ hours}

Standard Deviation : \sigma = 1.8\text{ hours}

Sample size : n=40

Formula to calculate z-score :-

z=\dfrac{X-\mu}{\dfrac{\sigma}{\sqrt{n}}}

For X=7.6 hours.

z=\dfrac{7.6-8.4}{\dfrac{1.8}{\sqrt{40}}}=-2.81091347571\approx-2.8

P(X

Hence, the probability that their mean rebuild time is less than 7.6 hours = 0.0026

8 0
2 years ago
Read 2 more answers
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