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
Alborosie
3 years ago
6

On parallelogram ABCD. Make a point where the diagonals intersect, and label it E. Measure and record the lengths of the four li

ne segments you just created.
Mathematics
1 answer:
Elan Coil [88]3 years ago
6 0

Answer:

i dont know

Step-by-step explanation:

You might be interested in
What is a quartile of 35, 45, 50, 65,85
Georgia [21]

Answer:

Lower quartile: 21.5

Median: 45

Upper quartile: 57.5

Step-by-step explanation:

pls mark brainliest

7 0
3 years ago
A newspaper published an article about a study in which researchers subjected laboratory gloves to stress. Among 225 vinyl? glov
romanna [79]

Answer:

a)

H₀: ρ₁ ≤ ρ₂

H₁: ρ₁ > ρ₂

b)

Z= \frac{('p_{1} - 'p_{2}) - (p_{1} - p_{2})}{\sqrt{'p(1-'p)[\frac{1}{n_1} + \frac{1}{n_2} ]} } ≈ N(0;1)

c)

p-value < .00001

d)

Reject the null hypothesis.

The population proportion vinyl gloves that leak viruses is greater than the population proportion of latex gloves that leak viruses.

Step-by-step explanation:

Hello!

The objective is to test if the population proportion of vinyl gloves that leak viruses (population 1) is greater then the population proportion of latex gloves that leak viruses (population 2).

Sample 1 (Vinyl)

n₁= 225

Sample proportion 'ρ₁= 0.60

Sample 2 (Latex)

n₂= 225

Sample proportion 'ρ₂= 0.09

Pooled proportion: 'ρ= (x₁+x₂)/(n₁+n₂)= ( 'ρ₁ + 'ρ₂)/2= (0.60 + 0.09)/2= 0.345 ≅0.35

The hypothesis is:

H₀: ρ₁ ≤ ρ₂

H₁: ρ₁ > ρ₂

α: 0.05

The statistic to use is a pooled Z

Z= \frac{('p_{1} - 'p_{2}) - (p_{1} - p_{2})}{\sqrt{'p(1-'p)[\frac{1}{n_1} + \frac{1}{n_2} ]} } ≈ N(0;1)

The critical region is one-tailed to the right (positive), the critical value is:

Z_{1-\alpha } = Z_{0.95} = 1.64

If Z ≥ 1.64, you will reject the null hypothesis.

If Z < 1.64, you will not reject the null hypothesis.

Z= \frac{(0.6 - 0.09) - (0}{\sqrt{0.35(1-0.35)[\frac{1}{225} + \frac{1}{225} ]} } = 11.34

Since the calculated Z- value is greater than the critical value, the decision is to reject the null hypothesis. The population proportion vinyl gloves that leak viruses is greater than the population proportion of latex gloves that leak viruses.

P-value approach:

p-value < .00001

If you compare with the level of signification, you reach the same decision.

I hope it helps!

8 0
3 years ago
1-89. On graph paper, draw the quadrilateral with vertices A(–1, 3), B(4, 3), C(–1, –2), and D(4, –2). a. What kind of quadrilat
guapka [62]

Answer:

it is a square

because

as we can see in the graph the

distance from A to B is 5 cm

distance from B to C is 5 cm

distance from C to D is 5 cm

distance from D to A is 5 cm

please mark me as the brainliest I really need it

7 0
3 years ago
Solve the system using elimination.<br> y=-x-3<br> y=x2-15
Phoenix [80]

Answer:

X=4, y=-7

Step-by-step explanation:

To use elimination method, you want to cancel x or y when adding the equations together. So let’s multiply the first equation by -2

2(y)=2(-x-3)

2y=-2x-6

——————

add above equation 2y=-2x-6

to second equation    Y=2x-15

add together.           3y=-21

                                   Y=-7

—————————————-

solve for x by substituting y value (7) into either equation

y=-x-3

-7=-x-3

-4=-x

4=x

7 0
3 years ago
Cindy went to the salon to get highlights and a haircut. Her total cost was $95. Cindy decided to tip her stylist 22% because sh
yan [13]
Her tip would be $20.90
8 0
3 years ago
Other questions:
  • If f(x) = (3x+7)^2 ,then f(1) =
    8·2 answers
  • Y= 4x +3, 4x + y =3 are they parallel or perpendicular
    10·2 answers
  • Use the discriminant to determine the number and type of solutions for the following equation. 12x2 + 10x + 5 = 0
    13·2 answers
  • Estimate the value of the function x=-1
    10·1 answer
  • Wanda jumped rope 25 times every minute. What is the algebraic equation to express the function of the total number of times Wan
    12·1 answer
  • 186:403 in simpleast form<br><br>​
    8·1 answer
  • Jess delivers 138 newspapers each day. Is it reasonable to estimate that jess delivers about 1,500 newspapers in 7 days? Explain
    9·1 answer
  • What type of line is PQ?<br> A. altitude<br> B. angle bisector<br> C. side bisector<br> D. median
    6·2 answers
  • Bananas are curved because they grow towards the sun ☀️
    14·2 answers
  • There are few differences in Florida plants as fall arrives. What differences might you see in the seeds of Florida plants?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!