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
Dafna11 [192]
3 years ago
15

1 +1 2+2 3+3 4+4 5+5 6+6

Mathematics
1 answer:
julsineya [31]3 years ago
5 0
46 i think. sorry if i’m wrong
You might be interested in
In right triangle DEF, ∠E is a right angle, m∠D=26∘, and DF=4.5.
jok3333 [9.3K]

Answer:

The measurement of EF is 1.98 units

Step-by-step explanation:

In Δ DEF

∵ m∠E = 90°

∴ FD is the hypotenuse of the triangle

∵ m∠D = 26°

∵ EF is opposite to angle D

- We can use the sine ratio to find it

∵ sin D = \frac{EF}{FD} ⇒ (opposite side / hypotenuse)

∵ FD = 4.5 units

∴ sin(26) = \frac{EF}{4.5}

- Multiply both sides by 4.5

∴ 4.5 sin(26) = EF

∵ sin 26° ≈ 0.44

∴ 4.5(0.44) = EF

∴ 1.98 = EF

The measurement of EF is 1.98 units

3 0
3 years ago
Find the area of a segment of a circle if its arc is 120 degrees and the radius is 3 inches.
Montano1993 [528]

Answer:<u> 9.42 inches</u>, 3π in terms of pi

Step-by-step explanation:

A full circle is 360 degrees, so if the segment has an arc of 120 degrees, it is 1/3 of a regular circle.

To find the area of a circle, we use the equation A = πr^2. In this case, we will divide the equation by 3 because we are only finding 1/ of a circle. So, our equation will be A  = (πr^2)/3.

Using 3.14 for π:

A  = (πr^2)/3.

A = (π3^2)/3

A = (π9)/3

A = 3π

A = 9.42

6 0
1 year ago
A political pollster conducted a study to determine political party loyalty. To do so, he selected a random sample of 100 regist
Reika [66]

Answer: (a)

P - Value = 0.0981 is high, this indicates stronger evidence that we should fail to reject the null hypothesis: H0: pD = pR (There is no significant difference between the proportion of Democrats who plan to vote for the Democratic candidate in the upcoming election and the proportion of Republicans who plan to vote for the Republican candidate in the upcoming election). P - Value = 0.0981 is the probability of obtaining results at least as extreme as the observed results of the Hypothesis Test, assuming that the null hypothesis is correct.

(b)

Since P - Value = 0.0981 is greater than \alpha = 0.05, the difference is not significant. Fail to reject null hypothesis.

(c)

Since in the Hypothesis Test, we have failed to reject null hypothesis, we could have made: Type II Error: Failure to reject a false null hypothesis. One potential consequence of this error is as follows:

Suppose in reality there is significant difference between the proportion of Democrats who plan to vote for the Democratic candidate in the upcoming election and the proportion of Republicans who plan to vote for the Republican candidate in the upcoming election. But the political pollster wrongly concludes that there is no significant difference between the proportion of Democrats who plan to vote for the Democratic candidate in the upcoming election and the proportion of Republicans who plan to vote for the Republican candidate in the upcoming election. Type II Error is committed in this situation. The consequence of this Type II Error is that the political pollstar will that the political parties are loyal and will not do any follow up work whereas in reality it is not so.

Step-by-step explanation:

got this from chegg!!!

5 0
3 years ago
(x^2 - 4)(x^2 + x - 12) = 0
tatiyna

Answer:

is that a T or F

Step-by-step explanation:

3 0
2 years ago
Can someone help me with this problem
riadik2000 [5.3K]

Answer:

d=16t squared

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • See the attached photo. ​
    13·1 answer
  • (a + b)(a – b) = a2 + b2 true or false?
    14·2 answers
  • Select the solutions to the following inequality: |x| &lt; 7
    6·1 answer
  • If the endpoints of the diameter of a circle are (−6, 6) and (6, −2), what is the standard form equation of the circle? A) x2 +
    7·1 answer
  • Find the underlined digit 506,087 7 is the underlined digit
    14·1 answer
  • Which correctly describes a cross section of the right rectangular prism if the base is a rectangle measuring 15 inches by 8 inc
    6·2 answers
  • Round the number 502.6439 to the underlined place. The underlined number is 3
    12·1 answer
  • The hare challenged the tortoise to a race from the water fountain to the park bench. In order to ensure a fair race, the tortoi
    8·1 answer
  • Solve by elimination:<br> 3x + 4y = 0<br> 5x-3y = -58<br> (6, -8)<br> B (-6, -8)<br> C (-8, 6)
    8·1 answer
  • Please help 11 points worth
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!