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
raketka [301]
3 years ago
11

Solve the problems. Write the complete proof in your paper homework and for online (only) respond to questions or statements (if

any) that are parts of your proof or related to it. Given: AB = AC m∠1=m∠2 AC = 15, DC = 5 Find: BD, AB
Mathematics
1 answer:
garri49 [273]3 years ago
6 0

Answer:

AB=15  BD=18

Step-by-step explanation:

AB is 15 because AB=AC and AC is 15

BD:

Using the Pythagorean Theorem

10²+15²=√325

√325=18

10 is from AB-CD

15 is the height which is AC

You might be interested in
Can someone help me 10 points
Elanso [62]

The two angles form a right triangle which is 90 degrees.

Add the two to equal 90:

3x-8 + 4x = 90

simplify:

7x-8 = 90

Add 8 to both sides:

7x = 98

Divide both sides by 7:

x = 14

3 0
3 years ago
There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 2 9 . There are 63 m
Tatiana [17]

The main idea is the number of marbles and the denominator of the probability. All you have to do is multiply the fraction by a fraction which is equal to 1 which makes the denominator equal to 63. We know 63 is a multiple of 9. 9 goes 7 times in 63 so we multiple the fraction \frac{2}{9} with \frac{7}{7} which gives, \frac{2 * 7}{9 * 7} which when evaluated gives \frac{14}{63} and the numerator is the number of red marbles in the bag. So there are 14 red marbles in the bag :D

7 0
3 years ago
Use the standard norml distribution or the t-distribution to construct a 99% confidence interval for the population mean. Justif
dalvyx [7]

Answer:

E) we will use t- distribution because is un-known,n<30

the confidence interval is (0.0338,0.0392)

Step-by-step explanation:

<u>Step:-1</u>

Given sample size is n = 23<30 mortgage institutions

The mean interest rate 'x' = 0.0365

The standard deviation 'S' = 0.0046

the degree of freedom = n-1 = 23-1=22

99% of confidence intervals t_{0.01} =2.82  (from tabulated value).

The mean value = 0.0365

x±t_{0.01} \frac{S}{\sqrt{n-1} }

0.0365±2.82 \frac{0.0046}{\sqrt{23-1} }

0.0365±2.82 \frac{0.0046}{\sqrt{22} }

0.0365±2.82 \frac{0.0046}{4.690 }

using calculator

0.0365±0.00276

Confidence interval is

(0.0365-0.00276,0.0365+0.00276)

(0.0338,0.0392)

the mean value is lies between in this confidence interval

(0.0338,0.0392).

<u>Answer:-</u>

<u>using t- distribution because is unknown,n<30,and the interest rates are not normally distributed.</u>

4 0
2 years ago
What is 0.34 x 9 equal to
BlackZzzverrR [31]
The answer is  3.06 but if you round its 3.1
7 0
3 years ago
Read 2 more answers
The table below shows the ages of employees over 50 at a company and the amount of money they have in their retirement accounts.
sp2606 [1]

Answer:

c

Step-by-step explanation:

plot your graph and then you will see there is no line which shows there is a correlation. they're too scattered

4 0
3 years ago
Other questions:
  • 2. Which expression is a factor of 24x2 + 16x + 144?
    5·1 answer
  • What is the total bill for a purchase of $30.00 with a tax of 5.25%? (Round to the nearest cent.)
    10·1 answer
  • George makes $12 an hour and worked 35 hours this week. how much did he earn?​
    12·2 answers
  • How do I set up proportion’s and also cross multiply
    8·1 answer
  • Solving Quardratic Equation <br><br>x^3 + 5x^2 -16x - 80 = 0
    10·1 answer
  • If RX=4 and XS=9, then XT=<br> And how do you get it?
    13·1 answer
  • Find the slope of the line y=-3/8x-7/6
    14·2 answers
  • Please help me with the following problem.
    13·1 answer
  • 31 points answer fast
    7·1 answer
  • Which is the best description for the graph below?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!