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
vredina [299]
3 years ago
14

Solve by factoring

Mathematics
2 answers:
Butoxors [25]3 years ago
7 0

Answer:

A. -5/4, 9

Step-by-step explanation:

The solution is in the picture

Travka [436]3 years ago
4 0

Answer:

A

Step-by-step explanation:

Given

4m² - 31m - 45 = 0

Consider the factors of the product of the coefficient of the m² term and the constant term which sum to give the coefficient of the m- term

product = 4 × - 45 = - 180 and sum = - 31

The factors are - 36 and + 5

Use these factors to split the m- term

4m² - 36m + 5m - 45 = 0 ( factor the first/second and third/fourth terms )

4m(m - 9) + 5(m - 9) = 0 ← factor out (m - 9) from each term

(m - 9)(4m + 5) = 0

Equate each factor to zero and solve for m

m - 9 = 0 ⇒ m = 9

4m + 5 = 0 ⇒ 4m = - 5 ⇒ m = - \frac{5}{4}

You might be interested in
Sherie bought a beach towel that normally costs $44 but was on sale for half price. She also bought a beach hat that was on sale
Phoenix [80]
22 + x - 12 = 38
x + 10 = 38
x = 38 - 10
x = 28 <===
7 0
3 years ago
Read 2 more answers
What is the slope of y = 4 - 2x
NISA [10]

compare with y=mx+c

then

y=4-2x

y=-2x+4

c=4,m=-2

8 0
2 years ago
Read 2 more answers
What is the square route of 30
rjkz [21]
The answer is 5.477225575.... or 5.5 if you want the simplified ansewer
4 0
3 years ago
Read 2 more answers
Will mark brainliest! Please help!
ValentinkaMS [17]

Answer:

The dimensions are:

3(2x+1) by (7x+5)

Step-by-step explanation:

The area of the rectangle is given as

A=42x^2+51x+15

The factored form of this quadratic trinomial gives the dimensions of the rectangle.

We factor 3 first to obtain;

A=3(14x^2+17x+5)

We split the middle term to get;

A=3(14x^2+10x+7x+5)

We factor within the parenthesis to get;

A=3(2x(7x+5)+1(7x+5))

We factor further to get;

A=3(2x+1)(7x+5)

The dimensions are:

3(2x+1) by (7x+5)

Then the perimeter will be

2(6x+3+7x+5)=26x+16\:\:\:\boxed{\sqrt{} }

4 0
3 years ago
A stack of bricks has a
Helga [31]

Answer: 456 inches cubed

Step-by-step explanation:

Volume is the area of the base multiplied by the height so you have to do 38 times 12 to get 456.

4 0
3 years ago
Other questions:
  • What's Pi to 12 decimal places
    11·1 answer
  • Lucy wants to buy a basketball that costs $30. She lives in a state that has 10% sales tax. What is the final price she will pay
    9·2 answers
  • Examine the figure below. If ABC is similar to the DEF, determine the measure of
    7·1 answer
  • Can someone help me plz
    5·2 answers
  • Helpppppppp plsssssssssssssssssssssssssssssssss
    14·2 answers
  • What is 56 1/2% written as a fraction in the simplest form?<br>​
    13·1 answer
  • The actual distance between Kalamazoo and Ann Arbor is miles.
    12·2 answers
  • Which expression is equivalent 24 + 30
    7·1 answer
  • What is the length of PR ?
    9·2 answers
  • The first step in solving using the substitution method is.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!