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
ELEN [110]
3 years ago
13

DF=78, DE=5x-9, and EF-2x+10, find EF

Mathematics
1 answer:
lbvjy [14]3 years ago
8 0

Answer:

As e is point between df. So we can write df as

df = de + ef

As given df = 78 , de = 5x - 9 , ef = 2x + 10.

So we can write

78 = 5x - 9 + 2x + 10

78 = 7x + 1

On subtracting 1 on booth side

78 - 1 = 7x +1 - 1

77 = 7x

On dividing both side by 7.

11 = x

So x = 11.

So ef = 2x + 10 = 2*11 + 10 = 22 + 10 = 32

Step-by-step explanation:

You might be interested in
Find the x and y - intercepts for f(x) = x3 +1
Rzqust [24]

Answer:

The y intercept is 0

The x intercept is -1

Step-by-step explanation:

To find the y intercept set x = 0 and solve for y

y =x^3 +1

y = 0+1

y =1

The y intercept is 0

To find the x intercept set y = 0 and solve for x

0 = x^3 +1

Subtract 1 from each side

-1 = x^3

Take the cube root of each side

(-1) ^ 1/3 = x^3^1/3

-1 =x

The x intercept is -1

4 0
3 years ago
Can you please help me out​
Katena32 [7]
Cube is the right answer
5 0
3 years ago
Read 2 more answers
Which digit represents "hundreds" in the number 8732?
masya89 [10]
<span>Our primary counting system is based on binary digits to represent numbers</span>
4 0
3 years ago
A bus is carrying 135 passengers, which is 5/8 of the capacity of the bus. What is the capacity of the bus?
anzhelika [568]

Answer:

Step-by-step explanation:

8/8 so 3/8 is left

6 0
3 years ago
Find the volume of a cone with a base diameter of 8 m and a height of 12 m.
Serggg [28]

Answer:

the formula for the volume of a cone is:

1/3hπr²

1/3×12m×π×8m=100.48m³

4 0
3 years ago
Other questions:
  • Here is the photo someone please help
    6·1 answer
  • keiko fills an aquarium to a depth of 3/5 meters in 7½ minutes. what is the unit ratr in minutes per meter?​
    12·2 answers
  • How many times does 7/8 go into 7
    10·2 answers
  • What is the measure of angle B in the triangle?
    7·2 answers
  • Is 0.123456789 irrational
    6·2 answers
  • Which statements about the relationship between the two angles below are true? Check all that apply ZC=LT
    8·1 answer
  • Oo what is 32 x 23 / 21
    6·2 answers
  • I am super bad at graphing. The Statement says "Graph each system and determine the number of solutions that it is. Tell if the
    15·2 answers
  • Which number is equivalent to 2.108¯¯¯¯¯¯¯¯?
    14·1 answer
  • Ms.Wiz spent 58 dollars on a pair of jeans at old navy.A week later,the store ran a sale and all jeans were 35% off.if she had w
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!