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
bija089 [108]
2 years ago
13

Help with this please

Mathematics
1 answer:
valkas [14]2 years ago
6 0

Answer:

  a) cannot be determined

  b) a triangle can be drawn, but its dimensions cannot be determined

Step-by-step explanation:

<h3>a)</h3>

The vertical axis is labeled in units of kilometers. The horizontal axis is labeled as distance, with no units given. The line shown appears to descend from 12 units above ground level over a distance of 34 units along ground level. One could argue the slope is 12/34 = 6/17, but there is no indication the horizontal units are the same as the vertical units.

The slope of the graph cannot be determined, because we don't know the horizontal units.

__

<h3>b)</h3>

You can draw the triangle, but you cannot determine its dimensions.

You might be interested in
Mark is converting £225 into $. He knows that £1 = €1.15 and €1 = $1.21. How many $ will Mark get? Give your answer to 2 dp. wha
madreJ [45]

Answer:

$313.09

Step-by-step explanation:

£1= €1.15

therefore £225 =225×1.15

which is =€258.75

and since €1=1.21

therefore €258.75 =$258.75×1.21

which is =$313.0875

in 2 dp answer= $313.09

4 0
3 years ago
Read 2 more answers
50 points !! please help hurry
SCORPION-xisa [38]

Since two of the sides are perpendicular that means they both have a right angle so the correct answer is C.

6 0
3 years ago
Read 2 more answers
Vitamin D, whether ingested as a dietary supplement or produced naturally when sunlight falls on the skin, is essential for stro
tigry1 [53]

Answer:

a) The 98% confidence interval would be given (0.182;0.218).

b) We are 98% confident that the true proportion of of England people who are deficient in Vitamin D is between 0.182 and 0.218.

c) If repeated samples were taken and the 98% confidence interval computed for each sample, 98% of the intervals would contain the population proportion.

d) Yes since the confidence interval not contains the value 0.25, we can refute the claim at 2% of significance.

Step-by-step explanation:

Data given and notation  

n=2700 represent the random sample taken    

X represent the people in England who are deficient in Vitamin D

\hat p=0.2 estimated proportion of England people who are deficient in Vitamin D

\alpha=0.02 represent the significance level

Confidence =0.98 or 98%

z would represent the statistic (variable of interest)    

p= population proportion of England people who are deficient in Vitamin D

Part a

The confidence interval would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 98% confidence interval the value of \alpha=1-0.98=0.02 and \alpha/2=0.01, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=2.33

And replacing into the confidence interval formula we got:

0.20 - 2.33 \sqrt{\frac{0.2(1-0.2)}{2700}}=0.182

0.20 + 2.33 \sqrt{\frac{0.2(1-0.2)}{2700}}=0.218

And the 98% confidence interval would be given (0.182;0.218).

Part b

We are 98% confident that the true proportion of of England people who are deficient in Vitamin D is between 0.182 and 0.218.

Part c

If repeated samples were taken and the 98% confidence interval computed for each sample, 98% of the intervals would contain the population proportion.

Part d

Yes since the confidence interval not contains the value 0.25, we can refute the claim at 2% of significance.

3 0
3 years ago
What are the zeros of the quadratic function f(x) = 8x2 – 16x – 15?
marusya05 [52]

8x^2 - 16x - 15 = 0

x = [ -(-16) +/- sqrt((-16)^2 - 4*8*-15) / ] 2*8

= 2.696, -0.696

4 0
3 years ago
Read 2 more answers
A small plane flew 808 miles in 4 hours with the wind. Then on the return trip flying against the wind it travels only 488 miles
Blababa [14]

Answer:

Step-by-step explanation:

let wind velocity=x

speed of plane=y

(x+y)*4=808

x+y=808/4=202   ...(1)

(y-x)*4=488

y-x=122 ...(2)

add (1) and (2)

2y=202+122=324

y=324/2=162

from (1)

x+162=202

x=202-162=40

wind velocity=40 m/hr

speed of plane=162 m/hr

8 0
2 years ago
Other questions:
  • The 9 officers of the Student Council are going on a trip to an amusement park. Each student must pay an entrance fee plus $5 fo
    14·1 answer
  • 11/12+(−7/12). Write your answer as a fraction in simplest form.
    11·1 answer
  • Consider this system of equations. Which equation represents the first equation written in slope-intercept form? 5 x minus 2 y =
    14·1 answer
  • Divide. Give the quotient and remainder.<br> 244:5
    7·1 answer
  • 16b = 32 need a lil bitta help
    10·2 answers
  • Can a line plot be used to display data from a histogram
    9·1 answer
  • Explain why this is NOT a function
    12·1 answer
  • What is the missing length?
    10·1 answer
  • 24 rounded to the nearest hundred​
    6·2 answers
  • The sample space is 1,2,3,4,5,6 find p less than 0
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!