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
Marina86 [1]
3 years ago
6

Which students, if any, have correctly identified a base and its corresponding height? Which ones have not? Explain what is inco

rrect. Explain what is correct.

Mathematics
1 answer:
kenny6666 [7]3 years ago
4 0

Answer:

The Explanation is below with correction in the Figure.

Step-by-step explanation:

Height is also call as Altitude.

Height of Triangle always measure in PERPENDICULAR to the Base.

a. )

Raul is correct because Height should always be Perpendicular, and Raul has drawn Height 'h' Perpendicular to the corresponding Base 'b'.

b. )

Mark is incorrect because Height drawn is NOT Perpendicular.

c. )

Kiki is incorrect because the corresponding base is incorrect, Height drawn is correct that is Perpendicular.

You might be interested in
Over a 24-hour period, the temperature in a town can be modeled by one period of a sinusoidal function. The temperature measures
oksano4ka [1.4K]
What was the answer?
7 0
3 years ago
Read 2 more answers
I need help with number 3
Lynna [10]
The hexagon divides the circle into 6 parts. That means the angle projecting each side is: 360°÷ 6 = 60°

The area of a circle is: πr²
78.54 in² divided by pi is 25 making the radius = 5

I would then use SOH CAH TOA to solve for the side.. knowing the hypotenuse is the radius and the angle to split it into a right triangle is 30°

Sin(30) = s/5
5*Sin(30) = s

12*s = perimeter hexagon
(remember s is half the hexagon side)

12*5*Sin(30) = perimeter hexagon
30 inches  = perimeter

6 0
3 years ago
A certain pen has been designed so that true average writing lifetime under controlled conditions (involving the use of a writin
Morgarella [4.7K]

Answer:

(a) We reject our null hypothesis.

(b) We fail to reject our null hypothesis.

(c) We fail to reject our null hypothesis.

Step-by-step explanation:

We are given that a certain pen has been designed so that true average writing lifetime under controlled conditions (involving the use of a writing machine) is at least 10 hr.

A random sample of 18 pens is selected.

<u><em>Let </em></u>\mu<u><em> = true average writing lifetime under controlled conditions</em></u>

So, Null Hypothesis, H_0 : \mu \geq 10 hr   {means that the true average writing lifetime under controlled conditions is at least 10 hr}

Alternate Hypothesis, H_A : \mu < 10 hr    {means that the true average writing lifetime under controlled conditions is less than 10 hr}

<u>The test statistics that is used here is one-sample t test statistics;</u>

                           T.S. = \frac{\bar X -\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean

             s = sample standard deviation

             n = sample size of pens = 18

          n - 1 = degree of freedom = 18 -1 = 17

<u>Now, the decision rule based on the critical value of t is given by;</u>

  • If the value of test statistics is more than the critical value of t at 17 degree of freedom for left-tailed test, then <u>we will not reject our null hypothesis</u> as it will not fall in the rejection region.
  • If the value of test statistics is less than the critical value of t at 17 degree of freedom for left-tailed test, then <u>we will reject our null hypothesis</u> as it will fall in the rejection region.

(a) Here, test statistics, t = -2.4 and level of significance is 0.05.

<em>Now, at 0.05 significance level, the t table gives critical value of -1.74 at 17 degree of freedom.</em>

Here, clearly the value of test statistics is less than the critical value of t as -2.4 < -1.74, so we reject our null hypothesis.

(b) Here, test statistics, t = -1.83 and level of significance is 0.01.

<em>Now, at 0.051 significance level, the t table gives critical value of -2.567 at 17 degree of freedom.</em>

Here, clearly the value of test statistics is more than the critical value of t as -2.567 < -1.83, so we fail to reject our null hypothesis.

(c) Here, test statistics, t = 0.57 and level of significance is not given so we assume it to be 0.05.

<em>Now, at 0.05 significance level, the t table gives critical value of -1.74 at 17 degree of freedom.</em>

Here, clearly the value of test statistics is more than the critical value of t as  -1.74 < 0.57, so we fail to reject our null hypothesis.

8 0
3 years ago
Simplify the following expression 3 x 6 + 5 x 2 diveded by 7
KATRIN_1 [288]

Answer:

4

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Is 9/3 a whole number
Liono4ka [1.6K]

Yes! 3x3= 9. Therefore, 3 goes into nine 3 times. So the whole number would be 3.

6 0
3 years ago
Read 2 more answers
Other questions:
  • I need help with this!!!!!!
    10·2 answers
  • PLEASE HELP ASAP!
    10·2 answers
  • The point (1,4) lies on a circle that is centered at (1, 1). Which statements are correct?
    15·1 answer
  • What is greater, 3/5r 4/10?
    12·1 answer
  • Irene solved this problem. Tony bought 3 pounds of oranges. He paid $0.95 per pound. How much did Tony pay for the oranges? Iren
    6·2 answers
  • Simplify this expression
    12·1 answer
  • 4.5 times 6-12 divided by 3
    10·2 answers
  • MP.1 Make Sense and Persevere Gary has $4. Mary has twice as many dollars
    7·1 answer
  • What is the area of the figure below?
    5·1 answer
  • Ranking correct answer brainliest !
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!