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
wolverine [178]
3 years ago
6

in right triangle ABC, line CD is perpendicular to line AB, AD=9 cm DB=16 cm. Find CD and the area of triangle ABC

Mathematics
1 answer:
vredina [299]3 years ago
4 0

Answer:

8+8

Step-by-step explanation:

the answer to the whats C and D well c=8 and D=8

You might be interested in
8 students are competing for first, second, third and fourth violin chair in the school’s orchestra. How many different ways can
kolezko [41]

Answer:

1,680

Step-by-step explanation:

There are 8 students to choose for the first chair. After we choose one, we have 7 students to choose from for the second chair, 6 for the third chair, etc.

8 * 7 * 6 * 5 = 1680 (ans)

4 0
3 years ago
What is the volume of a cone that has a radius of 4 units and a height of 6 units?
gregori [183]

Answer:

yes

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Which system of equations does not have a real solution?
dolphi86 [110]

Answer:

It's A.

Step-by-step explanation:

Let's look at option A:

From the second equation y =  -10 - x. Substituting in the first equation:

-10 - x = x^2 + 3x - 5

x^2 + 4x + 5 = 0

Checking the discriminant b^2 - 4ac we get 16 - 4*1*5 = -4 so there are no real roots. (A negative discriminant means no real roots).

So A has no real solution.

B.

x^2 + 3x - 5 =  (20 - 4x)/5 = 4 - 0.8x

x^2 +3.8x - 9 = 0

b^2 - 4ac = (3.8)^2 - 4*1*-9 = 50.44 (positive) so there are real roots.

C.

x^2 + 3x - 5 =  -9 - x

x^2 + 4x + 4 = 0

b^2 - 4ac =  4^2 - 4*1*4 = 0  so there are real roots.

7 0
3 years ago
Read 2 more answers
Solve the equation. 2/3z - 6 = 15 *
stealth61 [152]

Answer:

Solve for z by simplifying both sides of the equation, then isolating the variable.

Exact Form:

z = 63/2

Decimal Form:

z = 31.5

Mixed Number Form:

x = 31 1/2

4 0
3 years ago
What is the recursive rule for the following sequence: -9, -2, 5, 12, ….
tino4ka555 [31]

Answer:

The answer is option (C)=an-1+7

Step-by-step explanation:

A recursive rule is a formula that in which each term is expressed as a function of its preceding term(s), meaning in order to get to the nth term you have to express it in a form of the term that comes before it. In our case the a(n-1) term

So for the sequence -9, -2, 5, 12

The nth term is any number on the sequence and

  • -2 is the a(n-1) term for -9
  • 5 is the a(n-1) term for -2
  • 12 is the a(n-1) term for 5

So we need to find out what we have to do to the preceding term to get the next.

To get -2 from -9 we have to add 7 to -9; -9+7=-2

To get 5 from -2 we have to add 7 to -2; -2+7=5

To get 12 from 5 we add 7 to 5; 7+5=12

So the recursive rule would be= a n-1+7

5 0
3 years ago
Other questions:
  • If Winnie the Pooh is 5 inches tall in the first drawing and the scale is 1 inch= 2 inches how tall will Winnie the Pooh be in t
    5·1 answer
  • Calculate the area and the perimeter of the figure​
    14·1 answer
  • 4x=124 what is the solution to this equation?
    8·2 answers
  • Jimmy set his score for his math test. After the math teacher returnee his paper to him, he realized that if he increased his ta
    12·1 answer
  • PLEASE HURRY 10 POINTS What is the solution to the equation 3(2x+5)=3x+4x
    11·1 answer
  • A train travels at 80 miles per hour. What equation that compares the tike (t) with the distance (d)?​
    11·2 answers
  • Can I have some help
    5·2 answers
  • Describe the pair of equations. y = - 1/4x + 10 AND -2x + 8y = 6
    8·1 answer
  • on her scuba diving trip shana is able to dive 15 feet per minute she enters the water at 10:57 am what will her depth be at 11:
    11·1 answer
  • Pressley buys a $49 jacket that is 20% off. How much did he spend with that discount?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!