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
anzhelika [568]
3 years ago
15

Solve 7x^2–20x = 3. ;

Mathematics
2 answers:
valentinak56 [21]3 years ago
7 0

Answer:

x = \frac{-1}{7} <em>or </em>x = 3<em />

sasho [114]3 years ago
3 0

Answer:

x=3, -1/7

Step-by-step explanation:

7x^2-20x-3=0

Factor.

(x-3)(7x+1)=0

x-3=0 ⇒ x=3

7x+1=0 ⇒7x=-1 ⇒x= -1/7

You might be interested in
What is the m Show work
Ghella [55]

Answer:

measure of angle A is 80 degree.

Step-by-step explanation:

isosceles triangle will have same base angles

first base angle is 50, and the second will also be 50

3 angles of a triangle will add up to be 180 degree.

A is the vertex angle.

So 50 + 50 + A = 180

100 + A = 180

A = 80.

8 0
2 years ago
Skills Practice: convert the following fractions into decimals. You must show your
Lina20 [59]
ANSWER:
0.25

i attached my work, hope this helps

8 0
2 years ago
How much greater is 200 than 100 and 10​
Deffense [45]

Answer:

2 & 20

Step-by-step explanation:

100 x 2= 200

20 x 10= 200

3 0
3 years ago
The cost of a book was decreased from 60 to 50 by what percent the price decrased with solution​
Artist 52 [7]

Answer:

The price decreased by 16 1/3%, or approximately 16.3%

Step-by-step explanation:

Use the formula for percent change. If the answer is negative, it is a percent decrease. if the answer is positive, it is a percent increase.

percent change = (new price - old price)/(old price) * 100%

In this case, use:

new price = 50

old price = 60

percent change = (new price - old price)/(old price) * 100%

percent change = (50 - 60)/60 * 100%

percent change = -10/60 * 100%

percent change = -1/6 * 100%

percent change = -100/6% = -50/3% = -16 1/3%

The price decreased by 16 1/3%, or approximately 16.3%

7 0
2 years ago
Solve (x + 3)2 – 5 = 0 using the quadratic formula.
Harlamova29_29 [7]

Answer:

Step-by-step explanation:

(x+3)² -5 =0 , use the formula (a+b) ² = a²+b²+2ab

x²+9 +6x -5 =0 , combine like terms

x²+6x +4 =0, use the quadratic formula x = (-b±√b²-4ac)/2a

x= (-6 ±√6²-4*1*4)/2*1

x= (-6 ± √36-16) /2

x= (-6±√20)/2

x=(-6 +2√5)/2 and x=( -6-2√5) /2, factor 2 in the numerator and simplify

x= -3 +√5 and x= -3 -√5

4 0
3 years ago
Other questions:
  • Calculus<br> The following curve passes through (3,1)<br> Using linear lineralization
    5·1 answer
  • Only 2/17 of the teachers were sciolists. If 3000 were not sciolists how many teachers were there in all
    14·2 answers
  • Complete the steps to factor
    10·2 answers
  • A triangle has angle measurements of 83,42 and 55. Is this a triangle equilateral
    13·1 answer
  • 1,2,3,4,6and12 are all the factors of a number what is the number
    6·2 answers
  • What is the nth term of this number sequence 25, 20, 15, 10, 5
    13·1 answer
  • Help please will mark brainliest
    7·2 answers
  • Cynthia’s mom gave her $20.00 to spend at her friend’s birthday party on Friday night. Write an inequality that represents the n
    11·2 answers
  • Answer correctly please:)
    14·2 answers
  • On a map one inch is equal to 125 miles. There are six inches between Happyville and Glumtown. How many miles are between the tw
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!