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Naddik [55]
3 years ago
7

-2/3(8+1/2) please tell me whats the answer

Mathematics
2 answers:
kirill [66]3 years ago
7 0

i think it is 2/6 hope its right


babymother [125]3 years ago
6 0

- \frac{17}{3}

note that 8 + \frac{1}{2} = 8 \frac{1}{2} = \frac{17}{2}

then multiplying the values gives

- \frac{2}{3} × \frac{17}{2} ( cancelling the 2' s )

= - \frac{17}{3} = - 5 \frac{2}{3}


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The correlation coefficient r between the values assumed by two variables, X
Flura [38]

The slope of the line of best fit to the raw-score scatter plot is 0.98

  • The equation is y = 0.98x - 3.74
  • The value of y given that x = 12 is 8.02

<h3>How to determine the slope of the line?</h3>

From the question, we have the following parameters that can be used in our computation:

  • Standard deviations of X, Sx = 1.88
  • Standard deviations of Y, Sy =2.45
  • Correlation coefficient, r between X and Y = 0.75

The slope (b) of the line is calculated as

b = r * Sy/Sx

Substitute the known values in the above equation, so, we have the following representation

b = 0.75 * 2.45/1.88

Evaluate

b = 0.98

<h3>The equation of the line of best fit</h3>

A linear equation is represented as

y = bx + c

Where

Slope = b

y-intercept = c

In (a), we have

b = 0.98

So, we have

y = 0.98x + c

Recall that the point (13, 9) is on the line of best fit.

So, we have

9 = 0.98 * 13 + c

This gives

9 = 12.74 + c

Evaluate

c = -3.74

So, we have

y = 0.98x - 3.74

<h3>The value of y from x</h3>

Here, we have

x = 12

So, we have

y = 0.98 x 12 - 3.74

Evaluate

y = 8.02

Read more about line of best fit at

brainly.com/question/1564293

#SPJ1

4 0
1 year ago
PLEASE HELP ASAP 25 PTS
gladu [14]

Answer:

Graph (a)

Step-by-step explanation:

When we take x = 0 and replace in the given formula we get:

y = 0.5 (0.5)ˣ = 0.5 (0.5)⁰ = 0.5 · 1 = 0.5  and this corresponds to graph (a).

God with you!!!

7 0
3 years ago
Mike has $68 more than Min. Mike has $94. How much money does Min have?
yaroslaw [1]
94 MINUS 68 EQUAL 26 DOLLARS MIN HAS
4 0
3 years ago
Read 2 more answers
A boy who is flying a kite lets out 300 feet of string which makes an angle of 60o with the ground. Assuming that the string is
Aleks [24]
<h3><u>Answer</u> :</h3>

See the attachment for better understanding.

<u>G</u><u>i</u><u>v</u><u>e</u><u>n</u><u> </u>: Length of string (AC) = 300ft

<u>T</u><u>o</u><u> </u><u>F</u><u>i</u><u>n</u><u>d</u><u> </u>: Height of the kite from ground (AB)

:\implies\sf\:sin60^{\circ}=\dfrac{AB}{AC}

:\implies\sf\:\dfrac{\sqrt{3}}{2}=\dfrac{H}{300}

:\implies\sf\:H=\dfrac{300\sqrt{3}}{2}

:\implies\sf\:H=150\sqrt{3}

:\implies\:\boxed{\bf{\red{H\approx 260\:feet}}}

Hope it helps !

6 0
3 years ago
Solve for x -6x+14&lt;-28 AND 3x+28&lt;=25
scoray [572]

Answer:

-6x+14<-28

x = x > 7

3x+28<=25

x = x less than or equal to -1

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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