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3 years ago

What is the slope of line a

Mathematics

2 answers:

Crazy boy [7]3 years ago

5 0

The answer is 1/3. M=1/3

Cerrena [4.2K]3 years ago

4 0

Answer:

-1/3

Step-by-step explanation:

It is -1/3 because your going down and its like going underground and the grass is the 0-line then anything lower is a -x number if you were going up the "slope" then it would be a positive number.

You might be interested in

the ratio of the length of an airplane wing to its width is 7 to 1. find the length of wing is 26.7 meters, how wide must it be?

maw [93]

If the ratio is 7 to 1, the width of the wing must be 1/7 of the length. So, we just divide 26.7 by 7 to get 3.81 meters.

6 0

3 years ago

Katrina is reading a book that is 400 pages long. She has read 340 pages so far.

Svetach [21]

$\frac{340}{400}=\frac{340 \div 4}{400 \div 4}=\frac{85}{100}=85\%$

Katrina has read 85% of her book.

7 0

3 years ago

Assume that all grade-point averages are to be standardized on a scale between 0 and 4. How many grade-point averages must be

guapka [62]

Answer:

a) The required sample size n= 55011,57025

b) The sample size is not practical, because that size is extremely large and would be very costly to collect, normally the size have to be significant but no to large to avoid cost unnecessary

Step-by-step explanation:

Range

$σ = \frac{4-0}{4} = 1$

$E = 0,011 \\c= 99 %\\$ ⇒ 0,99

Sample size can be determinate using equation:

$n=(\frac{Z_{\alpha /2 * σ} }{E})^{2}$

Using confidence level desired 99% $Z_{\alpha /2}$ = 2,58

Table used :

Confidence $Z_{\alpha/2 }$

90 % 1,60

95 % 1,96

 99 % 2,58

99,9 % 3,291

So replacing:

$n=(\frac{2,58 * 1 }{0,011})^{2}$

$n= 234,5454545^{2} \\n=55011,57025$

6 0

4 years ago

Read 2 more answers

30 POINTS!!! WILL MARK BRAINLIEST IF YOU SHOW ALL YOUR WORK!!!

Alborosie

Answer:

Part A: (2x−5)(x+2)

Part B: (5/2,0) and (-2,0)

Part C: The graph of f(x) has both "ends" of the graph pointing upward. You can describe this as heading toward infinity.

Part D: To graph function we can use x-intercepts and "ends" to sketch.In order to graph better use one more point of parabola that you can find as the average of x-intercepts: (-2+5/2)/2 =1/4.This is just x coordinate and you need to plug in 1/4 in the f(x) and find y coordinate -10 1/8. You can use y-intercept (0,-10) as well to graph.

Step-by-step explanation:

2x^2-3x-5=y

(2x-5)(x+1)=y

(2x-5)(x+1)=0

2x-5=0

2x=5

x=2.5

x+1=0

x=-1

you have an even degree (2) and a positive coefficient (2)

therefore as x---> -∞, f(x)----> +∞

also, as x----> +∞, f(x)----> +∞

also notice that this is a parabola that opens upwards so both "ends" approach positive infinity

plot the x-intercepts, find the vertex using h=-b/2a and substituting this value into the equation to find k and make a table of values to graph the parabola unless you only want a rough sketch of the graph-you know the x-intercepts and you found the vertex using h=-b/2a

Mark brainliest please.

3 0

3 years ago

In a certain university admissions department, 70 more males than females submitted applications for admissions. 20% of the fema

Anuta_ua [19.1K]

Answer:

In total, 1130 people applied in the University.

Step-by-step explanation:

Total applicants admitted = 256

Let the number of females who applied in University = k

So, the number of males who applied = ( k + 70)

Now, 20 %of females are admitted ⇒ 20% of (k) is admitted

or, the number of females admitted in university = $\frac{20}{100} \times k = 0.2k$

Also , 25 %of males are admitted ⇒ 25% of (k + 70) is admitted

or, the number of males admitted in university = $\frac{25}{100} \times (k+70) = 0.25(k+70)$

So, according to the question:

0.20k + 0.25(k+70) = Total admissions = 256

or, 0.2k + 0.25k + 17.5 = 256

⇒0.45k = 238.5

or, k = 238.5/0.45 = 530

Hence, total number of females who applied = 530

And Total males who applies = ( k + 70) = 600

Now, TOTAL Applications = MALE applications + FEMALE applications

= 530 + 600 = 1130

Hence, in total 1130 people applied in the University.

4 0

3 years ago