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Diano4ka-milaya [45]
2 years ago
7

Randolph is trying to find the equation of a line parallel to y = x − 6 in slope-intercept form that passes through the point (−

1, 5). Which of the following equations will he use?
y − 5 = 1/4 (x − (−1))

y − (−1) = 1/4 (x − 5)

y − 5 = −4(x − (−1))

y − (−1) = −4(x − 5)
Mathematics
2 answers:
Semenov [28]2 years ago
7 0
Here, Equation of a Line = y = x - 6
Line which is parallel, must have similar slope i.e, 1

Now, Coordinates are (-1, 5)
We know, principle equation, y - y1 = m(x - x1)
y - 5 = 1 (x + 1)

[ Please check your options, it is none of them ]

y - 5 = x + 1
y = x + 6

Hope this helps!
bekas [8.4K]2 years ago
6 0
An equation of a line parallel to y=x-6, must have the same slope.

In this equation:
y=mx+b                        (slope-intercept form)
m is the slope:

The slope of the equation y=x-6 is m=1  (the number beside "x").

Now we have a point (-1,5) and the slope m=1.

Point-slope form of a line:
y-y₀=m(x-x₀)
so:
y-5=1(x+1)

answer: the equation of the line in point-slope form is :
y-5=1(x+1)

And the eqution of this line in slope-intercept form is:
y=x+6

y-5=(x+1)
y=x+1+5
y=x+6

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pentagon [3]

Answer:

11 units^2

Step-by-step explanation:

We know that the area of a square is the side squared, so we can use the inverse of this formula to say the side of a square is the square root of the the area. This gives us√33 and √44 as the side lengths of the red and green squares respectively. Next, we use the pythagorean theorem to find the other side of the white right triangle, which is also a side of the blue square. So:

(√44)^2 - (√33)^2 = side^2

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3 0
3 years ago
4x-5=3 what is the answer for this question
ahrayia [7]

Answer:

x=2

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Construct a​ 95% confidence interval for the population​ mean, mu. Assume the population has a normal distribution. A random sam
aniked [119]

Given Information:  

Number of lithium batteries = n = 16

Mean life of lithium batteries = μ = 645 hours

Standard deviation of lithium batteries = σ = 31 hours

Confidence level = 95%  

Required Information:  

Confidence Interval = ?

Answer:  

CI = 628.5 \: to \: 661.5 \: hours

Step-by-step explanation:  

The confidence interval is given by

CI = \mu \pm t_{\alpha/2} (\frac{\sigma}{\sqrt{n}})

Where μ is the mean life of lithium batteries, σ is the standard deviation, n is number of lithium batteries selected, and t is the critical value from the t-table with significance level of

tα/2 = (1 - 0.95) = 0.05/2 = 0.025

and the degree of freedom is

DoF = n - 1 = 16 - 1 = 15

The critical value (tα/2) at 15 DoF is equal to 2.131 (from the t-table)

CI = 645 \pm 2.131(\frac{31}{\sqrt{16}})

CI = 645 \pm 2.131(7.75})

CI = 645 \pm 16.515

CI = 645 - 16.515 \: and \: 645 + 16.515

CI = 628.5 \: to \: 661.5 \: hours

Therefore, the 95% confidence interval is 628.5 to 661.5 hours

What does it mean?

It means that we are 95% confident that the mean life of 16 lithium batteries is within the interval of (628.5 to 661.5 hours)

6 0
3 years ago
use counters model to solve this problem.eva has 2 apples in her basket.She eats 1 apple and gives 1 to her friend.How many appl
barxatty [35]

A: She Has 0

E: she had 2 she ate one and gave one away

2 - 1 =1

1 - 1 = 0

3 0
3 years ago
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17. Jing has $800 to deposit into two different savings accounts.
Olin [163]

Answer:

$864.88

Step-by-step explanation:

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(2. $200 + $15.38 = $215.38

$649.50 + $215.38 = $864.88

A = $864.88

7 0
3 years ago
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