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
Ainat [17]
3 years ago
8

4x^2-35x+49=0 solve by factoring

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
3 0

Answer: x=7/4 or x=7

Step-by-step explanation:

step 1: Factor left side of equation.

(4x−7)(x−7)=0

Step 2: Set factors equal to 0.

4x−7=0 or x−7=0

x=7/4 or x=7

You might be interested in
A wheelchair ramp runs 36 inches and rises 3 inches. What is the rate of change?
Oduvanchick [21]
Rate of change is Rise over run=3/36=1/12 inches
5 0
3 years ago
Read 2 more answers
Can someone help me with part b?
Tema [17]

Step-by-step explanation:

the average rate of change of a function f in an interval [x-low, x-high] is

(f(x-high) - f(x-low)) / (x-high - x-low)

the year 2000 means t = 2000-1980 = 20

the year 2015 means t = 2015-1980 = 35

so, we have

(A(35) - A(20)) / (35 - 20)

((-0.6(35)² + 37.2×35 + 243) - (-0.6(20)² + 37.2×20 + 243)) / 15

((-735 + 1302 + 243) - (-240 + 744 + 243)) / 15

(810 - 747) / 15 = 63/15 = 4.2

the average change rate between 2000 and 2015 is 4.2.

that means that the use of nuclear energy in the USA increased by 4.2 billions of kilowatt hours per year during that period.

3 0
3 years ago
5,345,238. How are the two 3 related
Lemur [1.5K]
Each just has different amounts of 0s
5 0
3 years ago
Read 2 more answers
Simplify the following expression -5[(x^3+1)(x+4)]
katrin [286]

Answer:

B

Step-by-step explanation:

-5[ (x³+1)(x+4) ] = -5[ x³*(x+4) + 1*(x+4) ]

      = -5 [ x³*x + x³*4 + 1*x + 1*4 ]

      = -5 [ x⁴ + 4x³ + x + 4]

      = -5*x⁴ + (-5)*4x³ + (-5)*x + (-5) * 4

      = -5x⁴ - 20x³ - 5x - 20

4 0
3 years ago
What is the simplest form of the expression 6x(x − 4) − 16x2 − (9x − 1)
Sedbober [7]
Use distributie property which is
a(b+c)=ab+ac
therefor
6x(x-4)=6x^2-24x

distribute the negative 1 infroont of the (9x-1)
-1(9x-1)=-9x+1
now we have

6x^2-24x-16x^2-9x+1
gropu like terms
6x^2-16x^2-24x-9x+1
add like terms
-10x^2-33x+1 is simplest form
8 0
3 years ago
Other questions:
  • What is the radical form of each of the given expressions?
    10·2 answers
  • What is the value of x to the nearest tenth.
    8·1 answer
  • How many radians are contained in the angle AOT in the figure? Round your answer to three decimal places.
    8·2 answers
  • Kevin designs a sprinkler system for his yard. One rotation of the the sprinkler waters a circle with an area of 255pie square f
    14·1 answer
  • Anna wants to buy a house at $67,000. She will need at down payment of 15%. What is the down payment amount
    7·2 answers
  • Make fractions equal by writing a number in each box (equivalent)<br> 1/2 = / = / = / = / = /
    5·2 answers
  • Determine the surface area of the shape below.
    7·1 answer
  • Pam flips a coin 12 times. The coin lands on heads 8 times. What is the theoretical
    7·1 answer
  • !00000 times 62<br> Go sub to my bros yt keditoplayz
    8·2 answers
  • 3^c=1/27 <br> what is it??
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!