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AlexFokin [52]
3 years ago
15

50 POINT I NEED HELP BAD

Mathematics
2 answers:
Vladimir [108]3 years ago
6 0
The answer for this question is 4
nikklg [1K]3 years ago
4 0

Answer:

k = 4

Step-by-step explanation:

7k - 6 = 2k + 14

(7k - 2k) - 6 = (2k - 2k) + 14

5k - 6 = 14

5k (- 6 + 6) = 14 + 6

5k = 20

5k/5 = 20/5

k = 4

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Point-Slope Form Practice
Lana71 [14]

Answer:

y=-x-7

Step-by-step explanation:

Equation of straight line in point slope form is given as

y-y_1=m(x-x_1)

Here

m=-1 \ and \ (x_1, y_1)=(-2, -5)

Therefore,

y+5=-1(x+2)

y=-x-7

4 0
2 years ago
Simplify the expression:<br> 2a+4b=9c
fomenos

Answer:

a=\frac{9c}{2}-b

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

4 0
2 years ago
Read 2 more answers
What is the similarity ratio of a cube with volume 250 m3 to a cube with volume 1024 m3?
bonufazy [111]
If similarity ratio means the ratio between the lengths of the cubes:

\frac{ L_1^{3} }{ L_2^{3} } =  \frac{V_1}{V_2}  \\  \\ ratio =  \frac{L_1}{L_2} =   \frac{\sqrt[3]{V_1} }{\sqrt[3]{V_2} }
5 0
3 years ago
Easy Sample Ap graphing 50pts! (Easy points!!) (ASAP) (URGENT) (Please check my other questions)​ Please
snow_lady [41]

Answer:

a)  See attachment 1.

b)  t² and D

c)  See attachment 2.

d)  g = 9.8 m/s² (1 d.p.)

Step-by-step explanation:

<h3><u>Part (a)</u></h3>

See attachment 1.  The line of best fit is shown in red.

<h3><u>Part (b)</u></h3>

The quantities the student should graph in order to produce a <u>linear relationship</u> between the two quantities are t² and D.

<h3><u>Part (c)</u></h3>

Make a table of values of t² and D:

\begin{array}{|l|l|l|l|l|l|}\cline{1-6} \rm t^2& 0.0196& 0.1024& 0.2116 & 0.3481& 0.3969\\\cline{1-6} \rm D & 0.10 & 0.50& 1.00 & 1.70 & 2.00\\\cline{1-6}\end{array}

<u>Plot</u> a graph of D against t² and draw a line of best fit (see attachment 2).

<h3><u>Part (d)</u></h3>

From inspection of the graph, the line of best fit passes through the origin (0, 0) and (0.1024, 5.0).  Therefore, use these two points to find the slope of the line:

\textsf{slope}\:(m)=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{0.5-0}{0.1024-0}=4.8828125...\:\rm m/s^2

Therefore:

\rm \implies \dfrac{1}{2}g=4.8828125...\:\rm m/s^2

\rm \implies g=2 \cdot 4.8828125...\:\rm m/s^2

\rm \implies g=9.8\:\rm m/s^2\:(1\:d.p.)

5 0
1 year ago
A
zhuklara [117]

2/3in = 1ft

30ft = ?in

30/(2/3)=45

45in

6 0
2 years ago
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