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
mrs_skeptik [129]
3 years ago
6

What is a congruent triangle

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
4 0
When two triangles<span> are </span>congruent<span> they will have exactly the same three sides and exactly the same three angles. The equal sides and angles may not be in the same position (if there is a turn or a flip), but they are there</span>
You might be interested in
If cos 0 =8/17, what is sin 0?
ipn [44]

Answer:

sin=15/17

Step-by-step explanation:

Use the definition of sine to find the value of

sin (0)

sin (0) = opp/hyp

THEN

Substitute in the known values.

sin (0) = 15/17

3 0
2 years ago
Which ratios are equal to cos(B)? Choose the TWO ratios that apply.
mestny [16]

Answer:2 and 5

Step-by-step explanation:

5 0
3 years ago
In 1990, 1000 adults were randomly selected and each was asked if they smoked, 300
Oduvanchick [21]

Answer:

 The proportion of smokers was higher in 1990 than in 2000

Step-by-step explanation:

Solution

Recall that,

The total number of sample 1 (n1) = 1000

Total  sample 2 number  (n2) = 2000

The number of favourable events (X1) = 300

The number of favourable events (X2) = 500

so,

p₁ = X₁/n₁ = 300/1000 = 0.3

p₂ = X₂/n₂ =500/2000 =0.25

α = 0.05

We are interested in testing the hypothesis.

The  hypothesis (Null) ....>  H₀ : p₁ = p₂

Alternate hypothesis------ > H₁ : p₁ > p₂

Thus,

P = X₁ + X₂/ n₁ + n₂

P =300 + 500/1000 +2000

P =800/3000

=0.2667

Now,

Z₀ = P₁ - P₂/√ P (1 -P) (1/n₁ + 1/n₂)

Z₀ =  0.3 - 0.25/√0.2667  (1 - 0.2667) (1/1000 + 1/2000)

Z₀ = 0.4999999999999999/√ 0.2667 (0.7333000000000001) (0.001 +0.0005)

Then,

Z₀ = 0.4999999999999999/√0.00029335666500000004

Z₀ = 2.9193

so,

zα/2 = z0.05/2 =z0.025

zα/2 = 1.6448536269514722

Now, we apply the decision rule:

Decision Rule: Reject the null hypothesis if the statistic value test is higher than the critical value 1.6448536269514722

The statistic value, 2.9193 is greater than the critical value 1.6448536269514722,  then we will reject the null hypothesis.

Therefore, the proportion of smokers was higher in 1990 than in 2000

3 0
3 years ago
Thirty minutes of exercise per day can reduce your blood pressure. Which of the following is a guideline for establishing causal
Lynna [10]

Answer:

opt. (d)

Step-by-step explanation:

6 0
3 years ago
The volume for a cylinder is given by the formula V = 72, where r is the radius of the cylinder and h is the height of the cylin
Elza [17]
I think the answer is B
7 0
2 years ago
Other questions:
  • Mrs. Hall went to work for the shirt factory on May 23, 1885. She earned nineteen cents per hour. If she worked thirteen hours p
    9·1 answer
  • A carpenter has 16 1/2 m of wood. He cuts the wood into pieces that are each 2 3/4 m long.
    8·1 answer
  • If line t is a transversal of lines l and m, name the angle relationship of the given angle pairs.
    15·1 answer
  • Mr. Lopez wrote the equation 32g+8g-10g=150
    5·2 answers
  • The graph of the equation y=2x^2-2 is shown which equation will shift the graph up 3 units
    7·1 answer
  • Plz help <br> decrease 420 by 7%
    9·1 answer
  • Can sb answer this correctly plz not a lot so plz do fast thank u
    8·1 answer
  • Please help, I will mark brainliest!
    12·1 answer
  • Help!!Find the y-intercept of the line on the graph.<br> Enter the correct answer.
    9·1 answer
  • The variables x and y are directly proportional, and y=4 when x=9. What is the value of y when x=18?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!