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
ad-work [718]
3 years ago
12

ABC has vertices at A(3.2), B(1.4), and C(2.7).

Mathematics
1 answer:
Umnica [9.8K]3 years ago
7 0

Answer:

A = 1,4

B = 2,1

C = -4,-5

Step-by-step explanation:

The 90 degree anticlockwise rotation around the origin (0,0) would over lap the y axis around 1 and due to this the formation would show C point at -4,-5

You might be interested in
Which of the following is a sensory organ?
Ksenya-84 [330]

Answer:

Eyes

Step-by-step explanation:

I’m pretty sure

3 0
2 years ago
Read 2 more answers
What are the coordinates of the point that is common to the graph of f(x) = (2/3) ^ x and the graph of f(x) = (3/2) ^ x
kiruha [24]

Answer:

Both point are y=0. The difference between the two is that 2/3 is always decressing and 3/2 is always incressing.

Step-by-step explanation:

7 0
2 years ago
Given the equation y − 3 = one half(x + 6) in point-slope form, identify the equation of the same line in standard form.
user100 [1]
C.y=1/2x+6, is fit....
4 0
2 years ago
Read 2 more answers
Please help me <br><br><br>i'll mark u as brainly if u give me the correct answers
jarptica [38.1K]

Answer:

49π cm²

Step-by-step explanation:

Diameter (d) = 14 cm

Radius (r) = d/2 = 14/2 = 7 cm

Area of a circle

= πr²

= π × (7)²

= 49π cm²

Hope it helps ⚜

8 0
2 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
2 years ago
Other questions:
  • A figure has vertices at D (0,0), H (-1,-2), I -5,0)
    12·1 answer
  • 8yd 2ft 6 in<br> 9yd 1ft 8 in<br> 3yd 2ft 7in<br> +__________
    12·2 answers
  • which value of x is in the solution set of the following inequality 6x-2&lt;10 answers: 2, 5, 1, and 72. which is the answer?
    12·1 answer
  • What are the first three terms of the sequence defined by the following equation?
    10·2 answers
  • Ivanna deposits $600 into an account that pays simple interest at a rate of 6% per year. How much interest will she be paid in t
    9·1 answer
  • Am I right if not can you please correct me??
    15·2 answers
  • Write a statement that indicates that the triangles in each pair are congruent.
    9·1 answer
  • The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May it cost her $420 to drive 500 mi
    10·1 answer
  • Chose the correct one quality to match the real-world situation. Gabe will spend no more than $100.
    13·1 answer
  • The product of two rational numbers
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!