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taurus [48]
3 years ago
5

[No links please and explain it out.♡︎]

Mathematics
2 answers:
Setler79 [48]3 years ago
6 0

Answer:

y=-1/2x-1

Step-by-step explanation:

y=mx+b

y=-1/2x+b. This is the first part. You basically plug in the slope for m. To solve for b, you have to plug in the x and y coordinates into the equation

6=(-14)(-1/2)+b

6=7+b

-1=b

So now you have your slope and your y-intercept, plug it back into the y=mx+b format

y=-1/2x-1 would be the final answer

Sholpan [36]3 years ago
5 0

Answer:

y = mx+b

m represents the slope and b represents the y-intercept

since you have the slope and a point you can find here the line crosses the y-axis

y = -1/2x + b

the point (-14, 6) can be substituted into the eq for x and y

(6) = -1/2(-14)+b

6 = 7 +b     (subtract 7 from both sides)

-1 = b

The line crosses the y-axis at -1

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Stacy goes to the county fair with her friends . The total cost of ride tickets is given by the equation c=3.5t , where c is the
madreJ [45]

Answer:

<h2><u>$52.5</u></h2>

Step-by-step explanation:

Step one:

given data

we are given that the linear function for the cost is  c=3.5t

c is the cost and

t is the number of tickets.

We are told that t=15, to find c, let us put the value of t in the linear function for the cost

c=3.5(15)\\\\c=52.5

<u>This shows that 15 tickets will cost $52.5</u>

<u />

3 0
2 years ago
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oee [108]
Yes they are equal they both have a side that is 25 degrees
5 0
3 years ago
26.45+4.79+120.02-3.20=
viva [34]
The answer to your question is = 148.06
6 0
3 years ago
Read 2 more answers
A blackjack is a 10-point card and an ace for a value of 21. Use your answers to parts (a), (b), and (c) to determine the probab
kondor19780726 [428]

Answer:

Results:

0.1432

0.0045

0.0905

0.0483

Step-by-step explanation:

Step a:

P(A or 10, A or 10) = 20/52 * 19/51 = 5/13 / 19/51 = 95/663 = 0.1432

Step b:

P(A A) = 4/52 * 3/51 = 1/13 * 1/17 = 1/221 = 0.0045

Step c:

P(10 10) = 16/52 * 15/51 = 4/13 * 5/17 = 20/221 = 0.0905

Step d:

P(A 10 or 10 A) = 2 * 4/52 * 16/51 = 2/13 * 16/51 = 32/663 = 0.0483

As well we get the probability by subtracting a,  b and c:  

P(blackjack): 0.1432 - 0.0905 - 0.0045 = 0.0482  

7 0
3 years ago
Question 8
sasho [114]

we are given

system of equations

First equation is

3x-2y=31

Second equation is

3x+2y=-1

now, we can find augmented matrix

A=\begin{pmatrix}3&-2&31\\ 3&2&-1\end{pmatrix}

now, we can change it into reduced row echelon form

step-1: multiply the 1st row by 1/3

A=\begin{pmatrix}1&-2/3&31/3\\ 3&2&-1\end{pmatrix}

step-2:add -3 times the 1st row to the 2nd row

A=\begin{pmatrix}1&-2/3&31/3\\ 0&4&-32\end{pmatrix}

step-3:multiply the 2nd row by 1/4

A=\begin{pmatrix}1&-2/3&31/3\\ 0&1&-8\end{pmatrix}

step-4: add 2/3 times the 2nd row to the 1st row

A=\begin{pmatrix}1&0&5\\ 0&1&-8\end{pmatrix}

so, we get

x=5,y=-8

Answer is (5,-8)

6 0
3 years ago
Read 2 more answers
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