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
Natasha_Volkova [10]
3 years ago
8

Quadrilateral ABCD is a kite. If AD=AB, find AD A. 5/3 B. 7 C. 5/7 D. 22

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
5 0
AD = AB

AD = 2r+8
AB = 5r-13

we need to find the value of r to find the total length

so 2r+8 = 5r-13
subtract 2r from each side:
8 = 3r -13
add 13 to each side:
21 = 3r
divide both sides by 3
r = 21 / 3 = 7
r=7
 now we know r, so replace r with 7 in the equation for AD

AD = 2r+8 = 2(7) +8 = 14 +8 = 22

 the answer is D. 22


You might be interested in
F(x) =-6-3x/2. g(x)=2x+4
Advocard [28]

Answer:

correct

Step-by-step explanation:

my brain be smart

7 0
2 years ago
b) The temperature falls from 11 to -2 °C. How much did the temperature fall? c) The temperature is 6 °C and it falls by 8 °C Wh
Lorico [155]

Answer:

B: -13*

C: -2*

D: 8*

E: -11*

Step-by-step explanation:

math

8 0
2 years ago
If the area of AABC is D, give the expressions that complete the equation for the measure of ZB?
Ira Lisetskai [31]

Given:

The figure of triangle ABC.

The area of the triangle ABC is D.

m\angle B=\sin ^{-1}(\dfrac{m}{n})

To find:

The value of m and n in the given expression.

Solution:

Let h be the height of the triangle ABC.

Area of a triangle is:

Area=\dfrac{1}{2}\times base\times h

Where, b is the base and h is the height of the triangle.

Area=\dfrac{1}{2}\times a\times h

The area of the triangle ABC is D.

D=\dfrac{1}{2}\times a\times h

2D=ah

\dfrac{2D}{a}=h                  ...(i)

In a right angle triangle,

\sin \theta =\dfrac{Perpendicular}{Hypotenuse}

\sin B =\dfrac{h}{c}

\sin B =\dfrac{1}{c}\times \dfrac{2D}{a}              [Using (i)]

\sin B =\dfrac{2D}{ac}

m\angle B =\sin ^{-1}\dfrac{2D}{ac}            ...(ii)

We have,

m\angle B=\sin ^{-1}(\dfrac{m}{n})          ...(iii)

On comparing (ii) and (iii), we get

m=2D

n=ac

Therefore, the required values are m=2D, n=ac.

6 0
3 years ago
Lines or points that do not lie on the same surface or plane.
Leokris [45]
Collinear Points: points that lie on the same line. Coplanar Points: points that lie in the same plane. Opposite Rays: 2 rays that lie on the same line, with a common endpoint and no other points in common.
8 0
2 years ago
Read 2 more answers
Multiply two and four-fifths negative five and two-thirds<br><br> whats the answer
ANEK [815]
The answer to your question is -16/3
4 0
3 years ago
Read 2 more answers
Other questions:
  • How far from 36,000 is 36,219?
    12·2 answers
  • Is it true yes or no
    7·2 answers
  • Evaluate the expression for x = 2. -9x2 + 11x − 7 =
    6·2 answers
  • In the diagram below, which distance represent the distance from point D to AB?
    12·1 answer
  • Write -0.5 repeating as a fraction in simplest form​
    13·2 answers
  • Pump it up gym's daily revenue each can be modeled by R(x)=5x where x represents the number of customers that visit the gym each
    10·1 answer
  • Evaluate (x-a+3) if the value of x is (a+7).
    8·1 answer
  • Write the equation in slope-intercept form. y - 2 = 6 (x + 1)​
    15·1 answer
  • The question is in the picture​
    9·2 answers
  • I need help im kinda stuck lol
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!