1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DochEvi [55]
3 years ago
15

A. -9/5 b. 9/5 c -5/9 d 5/9

Mathematics
1 answer:
Luba_88 [7]3 years ago
7 0

slope = - \frac{9}{5}

using the points on the line ( - 4, 5 ) and ( 1,  - 4 )

slope = ( - 4 - 5 )/( 1 - ( - 4 )) = - \frac{9}{5}


You might be interested in
Dennis stood on a 9 foot ladder to measure the sunflower. How much taller is the tallest sunflower than the ladder?
Shalnov [3]

Answer:

See Explanation

Step-by-step explanation:

Given

Ladder = 9ft

Tallest\ Sunflower = x

Required

How much taller is the tallest

To get this, we simply calculate the difference between the height of the tallest sunflower and the ladder.

i.e.

Difference  = Tallest\ Sunflower - Ladder

Difference  = x - 9

-----------------------------------------------------------------------------------------------------

If for instance, the tallest is 13ft, then it is 4ft taller.

Because:

Difference = 13ft - 9ft

Difference = 4ft

4 0
3 years ago
The p-value for a one-sided test of the population proportion is 0.0513. Which of
uysha [10]

Using the equation of the test statistic, it is found that with an increased sample size, the test statistic would decrease and the p-value would increase.

<h3>How to find the p-value of a test?</h3>

It depends on the test statistic z, as follows.

  • For a left-tailed test, it is the area under the normal curve to the left of z, which is the <u>p-value of z</u>.
  • For a right-tailed test, it is the area under the normal curve to the right of z, which is <u>1 subtracted by the p-value of z</u>.
  • For a two-tailed test, it is the area under the normal curve to the left of -z combined with the area to the right of z, hence it is <u>2 multiplied by 1 subtracted by the p-value of z</u>.

In all cases, a higher test statistic leads to a lower p-value, and vice-versa.

<h3>What is the equation for the test statistic?</h3>

The equation is given by:

t = \frac{\overline{X} - \mu}{\frac{s}{\sqrt{n}}}

The parameters are:

  • \overline{X} is the sample mean.
  • \mu is the tested value.
  • s is the standard deviation.
  • n is the sample size.

From this, it is taken that if the sample size was increased with all other parameters remaining the same, the test statistic would decrease,  and the p-value would increase.

You can learn more about p-values at brainly.com/question/26454209

3 0
3 years ago
Jimmy’s new cell phone cost him $49.99 when he signed a 2 year plan, which was 75% off the original place. What was the original
Sati [7]
If Jimmy's new cell cost him $49.99 with a 75% discount, then $49.99 is <span>100%−75%=25%</span><span> of the original price.
</span>
The original price of the cell phone was <span>$199.96</span><span>.</span>
6 0
3 years ago
Find the zeros of polynomial function and solve polynomials equations.<br> f(x)=24x^3-64x^2-21x+56
8090 [49]

Since this polynomial has 4 terms, factoring by grouping should be the first thing we try here.

So, we have:

8x^2(3x-8)-7(3x-8)=0 \implies\\ (8x^2-7)(3x-8)=0

So, we can use ZPP to find out roots:

3x-8 =0 \implies\\ x=\frac{8}{3}\\ 8x^2-7=0 \implies \\ 8x^2=7 \implies \\ x^2=\frac{7}{8} \implies \\ x=\pm\frac{\sqrt{7}}{\sqrt{{8}}}\\ \text{Rationalizing denominator:}\\ x=\pm\frac{\sqrt{56}}{8}

So our three roots are:

x \in \{\frac{8}{3},\frac{\sqrt{56}}{8},-\frac{\sqrt{56}}{8}\}

8 0
3 years ago
Which expression can be used to determine 50% of 42?<br> 42-2 ,42÷2,42÷10,42-10<br>​
evablogger [386]

Answer:

42÷2

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • NEED HELP, WILL GIVE 98 POINTS
    10·2 answers
  • Solve the system of equations below by graphing them with a pencil and paper. Enter your answer as an ordered pair.
    8·2 answers
  • Please answer if you know the solution. Thx
    8·1 answer
  • Juan unloads 29 bags of pine mulch from each of his fathers 2 trucks. Together, the truck holds 2,262 pounds of pine mulch. What
    11·1 answer
  • Find the area of the region between a regular hexagon with sides of 6" and its inscribed circle.
    11·1 answer
  • If the sides of a cube are 4 inches long, then its volume is
    11·2 answers
  • a flower bed has the shape of a rectangle 24 feet long and 9 feet wide what is its area in square yards
    7·1 answer
  • A right triangle has side lengths 7, 24, and 25 as shown below.
    7·1 answer
  • B) Find the measurements of a rectangk with a perimeter of<br>26cm and an area of 1600cm​
    12·1 answer
  • Use two points on the graph to find the slope of the line.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!