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
yanalaym [24]
2 years ago
11

E

Mathematics
1 answer:
Allushta [10]2 years ago
8 0

Answer:

Step-by-step explanation:

We can use Hypotenuse Theorem for this:

For triangle ABC,

AC²=CB²+BA²

9²=CB²+3²

Switch the sides

-CB²=3² -9²

-CB²= 9-81

-CB²= -72

the signs cut each other

CB²=72

the square changes sides

CB=√72

CB= 8.49 cm

Now triangle CBD

We have the length of CB but not the other two whereas we have the angle

It will be sin

As we know sin= O/H

Here O is CB whereas H is CD

Put the values

sin 50= 8.49/H

H= 8.49 ÷sin 50

Calculate

H=11.1 cm

As we know H is CD so CD is 11.1 cm

Hope it helps

You might be interested in
Jan has $130. If she saves $25 per week, in how many weeks will she have $600?
serious [3.7K]

Let's represent the number of weeks with the variable 'w':

130 + 25w = 600

We subtract both sides by 130:

25w = 470

w = 18.8

We round up:

It will take her 19 weeks.

4 0
3 years ago
Read 2 more answers
Please i really need help
Hatshy [7]
The last expression: (16-8)x2+4=8x6=48
4 0
3 years ago
Someone please help me in this question it is kind of confusing it is a question under pre calculus in first year calculus i wil
masya89 [10]
Neither P, nor A are on the sketch 
I guess P is the upper right corner of the rectangle 
and A=(0,1) 

P belongs to the line going through (1,0) and B(0,y) 
<span>but we don't know the y-coordinate of B </span>

<span>the triangle is right and isosceles, so pythagoras a²+a²=2² ... 2a²=4 ... a²=2 ... a=sqrt2 </span>
now look at the right triangle BOA 
<span>his hypotenuse is AB=sqrt2 and the <span>the kathete</span> OA is 1 </span>
so y²+1²=(sqrt2)² ... y²+1=2 ... y²=1.. y=1 
so the coordinates of B are (0,1) 

the line going through (1,0) and (0,1) is L(x)=-x+1 

P belongs to this line, so the coordinates of P are P(x,-x+1) (0<x<1) 

b) so if that's P, the height of the rectangle is -x+1 and the width=2x 
<span>so its area A(x)=2x*(-x+1)= -2x²+2x 

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

</span>
5 0
3 years ago
If the original price was $58 and the new price is $66 what is the percent change
Serjik [45]
I believe the answer is 65%. i'm not sure
6 0
2 years ago
HI I NEED HELP WITH THIS!!! SOMEONE ANSWER ASAP PLS
padilas [110]
10
the hypotenuse is the largest side
so out of 6,8,10
10 is the largest
5 0
2 years ago
Other questions:
  • Is the following a proposition
    15·1 answer
  • The names of the polygons 1-100
    6·1 answer
  • How to write six thousand eight hundred ninety seven in number form form?
    8·1 answer
  • HELP PLEASE ASAP<br> what is the mean of 210,160,200 ?
    8·2 answers
  • Suppose f(x)=2x-5 and g(x)=|-3x-1|. <br> Find the following value. G(2)-f(0)=
    10·1 answer
  • im sorry but im so confused T^T im so bad at these things- directions in picture NO LINKS OR YOUR GETTING REPORTED!
    8·2 answers
  • Which texts are written to inform readers? Select 3 options.
    7·2 answers
  • In previous courses, you learned to solve single step and multi-step equations algebraically. Take a minute to review what you a
    8·1 answer
  • What is w/5 - 5 &gt; -8?
    6·2 answers
  • the local library raised money by having a used book Rebecca volunteered to help. her task was to stick price labels on each of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!