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
Elden [556K]
3 years ago
6

Plz help me with this

Mathematics
1 answer:
goldenfox [79]3 years ago
5 0
Area of triangle=1/2(base×height)
360=1/2((4x-2)(7x+5))
720=(4x-2)(7x+5)
FOIL the binomial
720=28x^2+6x-10
Bring 720 to the other side
28x^2+6x-10-720=0
28x^2+6x-730=0
Factor 2 out
2(14x^2+3x-365)=0
Factor 2(14x+73)(x-5)=0
x-5=0
x=5
It can't be 14x-73=0 because the length can't be negative.
You're welcome.
You might be interested in
I do not understand what is 187=17r
Likurg_2 [28]

Answer:

11

Step-by-step explanation:

187=17r

Divide 17 on both sides so that "r" is by itself and can be solved

187/17=r

11=r

Hope this helps!

7 0
3 years ago
Read 2 more answers
Jenny walked 2.5 miles in 50 minutes . At this rate , how many minutes did it take her to walk 1 mile ?
Harlamova29_29 [7]
For this question, let's use algebra!

<u>2.5 miles</u>  =  <u>50 minutes</u>
 1 mile             x minutes

x minutes = 50 x 1 ÷ 2.5
x minutes = 20

Hope this helps!
8 0
3 years ago
Read 2 more answers
Pl ease help what is with give brainlist answer!
expeople1 [14]

Answer:

option 1 is true. -1/2=-0.5

6 0
2 years ago
Read 2 more answers
What does b= in mathematics
ziro4ka [17]

bisector. Base. In geometry, the base of a shape is the side (usually the bottom) that forms a right (90 degree) angle with the height of the object. Biannual.

7 0
3 years ago
Given the functions f(x) = 2x -1 and g(x) =
Novosadov [1.4K]

Answer:

Please check the explanation.

Step-by-step explanation:

Given

  • f(x) = 2x - 1
  • g(x) =  2 - x

a)

f(x) + g(x) = (2x - 1) + (2 - x)

                = 2x -1 + 2 - x

                = x + 1

b)

f(x) - g(x) = (2x - 1) - (2 - x)

              = 2x - 1 - 2 + x

               = 3x - 3

c)

g(-5) - f(-5)

Putting x = -5 in g(x) = 2 - x

g(x) = 2 - x

g(-5) = 2 - (-5) = 2+5 = 7

Putting x = -5 in f(x) = 2x - 1

f(x) = 2x - 1

f(-5) = 2(-5) - 1

       = -10 - 1

        = -11

Thus,

g(-5) - f(-5) = 7 - (-11) = 7+11 = 18

d)

f(x).g(x) = (2x - 1) (2 - x) = -2x² + 5x - 2

e)

f(g(x)) = f(2-x)

          = 2(2-x)-1

          = 4-2x-1

          = 3-2x

6 0
3 years ago
Other questions:
  • Which statement about 3(x2 – 4) is true?
    6·1 answer
  • A hubcap has a radius of 14 centimeters. What is the area of the hubcap?asap pls
    10·1 answer
  • What is 9+10 as a normal problem??
    15·2 answers
  • What does it mean for a product of factors to be expressed using exponents
    15·1 answer
  • (2x-10)(x+3)<br> Simplify each expression
    6·2 answers
  • How to solve (3m+7)(2m-1)
    7·1 answer
  • What is the measure of B?
    12·1 answer
  • Identify the ‘false’ statement.
    8·1 answer
  • Just number three pls give right answer and will give brainless
    12·1 answer
  • Help! Will give brainliest!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!