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
GuDViN [60]
3 years ago
5

I need help solving ​

Mathematics
2 answers:
Verizon [17]3 years ago
7 0

Answer:

<em>Triangle ADC is a right triangle.</em>

Step-by-step explanation:

<u>Triangles Classification</u>

An <em>acute triangle</em> is a triangle with three acute angles or with less than 90° each.

An <em>obtuse triangle</em> has one obtuse angle or more than 90°.

A <em>right triangle</em> has one right angle of 90°

From the figure, we can see angle D is marked as a right angle (90°), thus triangle ADC is a right triangle.

To complete the answer, triangle ADB is obtuse (has an angle of 100°), and triangle ABD is acute.

vaieri [72.5K]3 years ago
5 0

Answer:

well if you're looking for angles then

angle ADB = 30°

angle CBD = 80°

angle CDB = 120°

but they asked to classify triangle ADC ,whose measurements are 90° , 40° and 50° ...so of they're asking what type of triangle then it is a right angled triangle.

You might be interested in
A race walker completed a 13 mile walk in 2.5 hours. What is the walker's speed per hour?
Viktor [21]

Answer:

5.2mph

Step-by-step explanation:

Speed =distance/time

13/2.5=5.2 mph

4 0
3 years ago
A fruit salad recipe calls for 10 cups of berries and 6 cups of peaches. What is the ratio of peaches to berries, in simplest fo
katen-ka-za [31]
It’s 6:10 have a nice night
5 0
3 years ago
Read 2 more answers
Two random samples are taken, with each group asked if they support a particular candidate. A summary of the sample sizes and pr
Minchanka [31]

Answer:

And we got \alpha/2 =0.01 so then the value for \alpha=0.02 and then the confidence level is given by: Conf=1-0.02=0.98[/tex[ or 98%Step-by-step explanation:A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  The margin of error is the range of values below and above the sample statistic in a confidence interval.  Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  [tex]p_1 represent the real population proportion for 1

\hat p_1 =0.768 represent the estimated proportion for 1

n_1=92 is the sample size required for 1

p_2 represent the real population proportion for 2

\hat p_2 =0.646 represent the estimated proportion for 2

n_2=95 is the sample size required for 2

z represent the critical value for the margin of error  

The population proportion have the following distribution  

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})  

The confidence interval for the difference of two proportions would be given by this formula  

(\hat p_1 -\hat p_2) \pm z_{\alpha/2} \sqrt{\frac{\hat p_1(1-\hat p_1)}{n_1} +\frac{\hat p_2 (1-\hat p_2)}{n_2}}  

For this case we have the confidence interval given by: (-0.0313,0.2753). From this we can find the margin of erro on this way:

ME= \frac{0.2753-(-0.0313)}{2}=0.1533

And we know that the margin of erro is given by:

ME=z_{\alpha/2} \sqrt{\frac{\hat p_1(1-\hat p_1)}{n_1} +\frac{\hat p_2 (1-\hat p_2)}{n_2}}

We have all the values except the value for z_{\alpha/2}

So we can find it like this:

0.1533=z_{\alpha/2} \sqrt{\frac{0.768(1-0.768)}{92} +\frac{0.646 (1-0.646)}{95}}

And solving for z_{\alpha/2} we got:

z_{\alpha/2}=2.326

And we can find the value for \alpha/2 with the following excel code:

"=1-NORM.DIST(2.326,0,1,TRUE)"

And we got \alpha/2 =0.01 so then the value for \alpha=0.02 and then the confidence level is given by: Conf=1-0.02=0.98 or 98%

7 0
3 years ago
2) Rosa is making a board game that is 16 inches by 24 inches. She wants to use square tiles. What
solniwko [45]

Answer:

8x8

6

GCF

Step-by-step explanation:

3 0
3 years ago
The product of two consecutive even integers is 360360. find the integers.
professor190 [17]
There are no 2 consecutive integers which give a product 360360
5 0
3 years ago
Other questions:
  • 8=1.88+a solve the equation
    5·2 answers
  • What is the answer to 40=-6t-8 ?
    5·2 answers
  • Shown.<br> Exactly how many planes contain points J, K, and N?
    11·1 answer
  • I need help ASAP <br> Please Help!!
    7·1 answer
  • Hey I have one more more question. will mark brainless to first right answer​
    7·2 answers
  • The value of the surface area (in square centimeters) of the cone is equal to the value of the volume (in cubic centimeters) of
    9·1 answer
  • A matched pairs design involves: matching pairs of participants based on a variable and then randomly assigning one member of ea
    14·1 answer
  • One-fourth of the sum of 2p and 11
    10·1 answer
  • Write a numerical expression to match the written expression below: Twenty-three less than the sum of forty-nine and thirty-seve
    12·2 answers
  • how can you tell that the inequality 3x - 1 &gt; 3x +2 has no solution just by looking at the terms in the inequality
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!