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
rodikova [14]
3 years ago
6

SQRT is a parallelogram. If m∠QST = 72°, which of the following statements is true?

Mathematics
2 answers:
Mrrafil [7]3 years ago
7 0
The answer to your question is option b because opposite angles in a quadrilateral are equal to one another
ratelena [41]3 years ago
6 0

Answer:

m∠QRT = 72°

Step-by-step explanation:

You might be interested in
Help me please this test is very important !
Lilit [14]

Answer:

d

Step-by-step explanation:

5>2n+11

5-11>2n

-6>2n

-6/2>n

n<or equal to -3

bubble is filled pointing left

6 0
3 years ago
Please help! asap <br> d- 5.44
masya89 [10]

Answer:

Step-by-step explanation:

2.72 is the unit rate

5 0
3 years ago
PLEASE HELP ASAP WILL GIVE BRAINLIEST!!!!!
olasank [31]

Answer:

A. (0,7)

B. -1.25

C. Negative

D. I started at (0,7), then plotted the second point by moving the point down 5 and right 4.

Step-by-step explanation:

Look at the equation more carefully.

I hope this helps :)

5 0
3 years ago
Read 2 more answers
In the Salk vaccine field trial, 400,000 children were part of a randomized controlled double-blind experiment. Just about half
EastWind [94]

Answer:

Step-by-step explanation:

From the given information:

The number of children that were randomly allocated to each vaccination group; n₁ = 200,000

No of polio cases X₁ = 57

Now, in the vaccine group:

the proportion of polio cases is:

\hat p_1 = \dfrac{57}{200000}

=  0.000285

The number of children that were randomly allocated to the placebo group, n₂ = 200,000

No of polio cases X₂ = 142

In the placebo group

the proportion of polio cases is:

\hat p_2 = \dfrac{142}{200000}

Null and alternative hypothesis is computed as follows:

H₀: There is no difference in the proportions of polio cases between both groups.  

H₁: There is a difference in the proportions of polio cases between both groups.

Let assume that the level of significance ∝ = 0.05

The test statistic  can be computed as:

Z = \dfrac{\hat p_1-\hat p_2}{\sqrt{\dfrac{\hat p_1 \hat q_1}{n_1}+ \dfrac{\hat p_2 \hat q_2}{n_2}}}

Z = \dfrac{0.000285-0.000710}{\sqrt{\dfrac{0.000285(1-0.000285)}{200000}+ \dfrac{0.000710(1-0.000710)}{200000}}}

Z = \dfrac{-4.25\times 10^{-4}}{\sqrt{\dfrac{0.000285(0.999715)}{200000}+ \dfrac{0.000710(0.99929)}{200000}}}

Z = - 6.03

P-value =  2P(Z < -6.03)

From the Z - tables

P-value =  2 × 0.0000

= 0.000

We reject the H₀ provided that P-value is very less.

Therefore, we may conclude that there is a difference in the proportions of polio cases between the vaccine group and placebo group not due to chance.

7 0
3 years ago
Which of the following inequalities matches the graph? graph of an inequality with a dashed vertical line through the point (2,
earnstyle [38]
The answer is x > 2, let me know if you need why
3 0
3 years ago
Read 2 more answers
Other questions:
  • BRAINLIEST TO BEST ANSWER!!!!
    10·1 answer
  • Need help with #1. The answer is 10 but show work please.
    11·2 answers
  • Your family has a cable television package that costs $40.99 per month. Pay-per-view movies cost $3.95 each. Your family budgets
    5·1 answer
  • What is 25.2&lt;1.5y+1.2
    10·1 answer
  • I'm trying to figure out the formula for figuring out percentages. For example, what percentage of 3175 is 510?
    12·1 answer
  • How do you find the area of this
    13·1 answer
  • 18.8 multiples by the cube of 25
    7·1 answer
  • Jeremy traveled 345 miles to visit his cousin in north carolina. if he traveled at a rate of 60 miles per hour, how long did the
    6·1 answer
  • Ms.Lawrence buys 8 ounces of smoked salmon at 17.98 per pound how much money did ms.Lawrence spend on smoked salmon
    11·1 answer
  • in an 7th grade class with 80 people, seven tenths of the students wore shorts, how many students wore shorts
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!