All categories

3 years ago

Help me please i dont know the ans

Mathematics

2 answers:

Bad White [126]3 years ago

3 0

Y= 1x because 8/8 = 1

uysha [10]3 years ago

3 0

Answer:
y = x - 80

Explanation:
The equation of line in slope-intercept form has the following formula:
y = mx + c
where:
m is the slope
c is the y-intercept

1- getting the slope:
To get the slope, we will need two points from the graph. I will choose the two (0,-80) and (60,-20)
slope = (y2-y1) / (x2-x1) = (-20--80) / (60-0) = 1
The equation now is:
y = 1x + c
y = x + c

2- getting the y-intercept:
To get the y-intercept, we will choose a point from the graph, substitute with this point in the equation and solve for c.
I will choose point (0,-80)
y = x + c
-80 = 0 + c
c = -80

Based on the above, the equation of the line is:
y = x - 80

Hope this helps :)

You might be interested in

On a spinner, there are twenty equal-size sections numbered from 1 to 20. What is the likelihood that the spinner will stop on a

vladimir2022 [97]

Answer:

0.65

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

A survey among freshman at a certain university revealed that the number of hours spent studying before final exams was normally

patriot [66]

Answer: 0.0775

Step-by-step explanation:

Given : Mean : $\mu = 25$

Standard deviation : $\sigma =15$

Sample size : $n=36$

Since its normal distribution , then the formula to calculate the z-score is given by :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

For x= 28.2 hours

$z=\dfrac{28.2-25}{\dfrac{15}{\sqrt{36}}}=1.28$

For x= 30 hours

$z=\dfrac{30-25}{\dfrac{15}{\sqrt{36}}}=2$

The P- value = $P(1.28$

$=P(z$

Hence, the probabiliy that the average time spent stydying for the sampe was between 28.2 and 30 hours = 0.0775

6 0

3 years ago

Please assist me with the domain and range of graphs

Sphinxa [80]

Answer: see below

Step-by-step explanation:

Domain represents the x-values from the smallest (furthest left) to the biggest (furthest right).

Range represents the y-values from the lowest (furthest down) to the highest (furthest up).

Interval notation: If a value is included (closed dot), use a bracket [ ]

If a value is NOT included (open dot), use a parenthesis ( )

Note that ± ∞ is never included.

1. Domain: smallest x-value is -4 (included). biggest x-value is 3 (included)

Range: lowest y-value is 2 (included). highest y-value is 5 (included)

D: x = [-4, 3] R: y = [2, 5]

2. Domain: smallest x-value is -∞ (←). biggest x-value is 2 (included)

Range: lowest y-value is 2 (included). highest y-value is ∞ (↑)

D: x = (-∞, 2] R: y = [2, ∞)

3. Domain: smallest x-value is -∞ (←). biggest x-value is ∞ (→)

Range: lowest y-value is -∞ (↓). highest y-value is ∞ (↑)

D: x = (-∞, ∞) R: y = (-∞, ∞)

4. Domain: smallest x-value is -∞ (←). biggest x-value is ∞ (→)

Range: lowest y-value is -∞ (↓). highest y-value is 4 (included)

D: x = (-∞, ∞) R: y = (-∞, 4]

5. Domain: smallest x-value is -∞ (←). biggest x-value is ∞ (→)

Range: lowest y-value is 3 (included). highest y-value is ∞ (↑)

D: x = (-∞, ∞) R: y = [3, ∞)

6. Domain: smallest x-value is -2 (included). biggest x-value is ∞ (→)

Range: lowest y-value is -3 (included). highest y-value is ∞ (↑)

D: x = [-2, ∞) R: y = [-3, ∞)

4 0

3 years ago

PLEASE HELP ME (40 POINTS)

CaHeK987 [17]

For each equation give X a value and solve for Y, do this at least two times for each equation.

Plot those dots on a graph to draw two lines.

The solution is where the two lines cross.

You will see the lines cross at (-1,-2)

7 0

3 years ago

Question 1

ludmilkaskok [199]

Answer:

i8hjkdfghjkycxgigcftfiuyg

Step-by-step explanation:

dhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyjkdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyhkdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyjcdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyjbgdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyjkhdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyxcbvjkhkjcxbvm,chcxbvkuyxbvm,chcxbvkuyihbxbv

7 0

2 years ago