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
dlinn [17]
3 years ago
7

Which factors can be multiplied together to make the trinomial 5x^2+8x-4

Mathematics
1 answer:
Kitty [74]3 years ago
4 0

Answer:

Step-by-step explanation:

hello :

5x²+8x-4  quadratic expression when : a = 5  and  b=8  and  c= -4

∆ = b²-4ac        ∆ = 8²-4(5)(-4) = 64 +80 = 144 = 12²

X1 = ( -b -√∆)/2a       X1 = (-8-12)/10 = -20/10= -2

X2 =(-b+√∆)/2a       X2 = (-8+12)/10 = 4/10 = 2/5

us factorisation : a(X-X1)(X-X2)

5x²+8x-4= 5(x+2)(x-2/5) = (x+2)(5x-2)

you can verify ;  (x+2)(5x-2) = 5x²-2x+10x-4 = 5x²+8x-4

You might be interested in
Old time savings bank pays 4% interest on its savings accounts. if you deposit $1,000 in the bank and leave it there: (do not ro
topjm [15]
A. $40, because you would do 1,000 × 1.04 = $1,040, and then subtract the original $1,000.
b. $81.60, because 1,000 × 1.04² = 1,081.6
c. $480.24, because 1,000 × 1.04^10 = 1,480.24.
I have used the formula for compound interest presuming you were aware of it, but I will be happy to explain what I did if you want :).
I hope this helps!
3 0
3 years ago
Read 2 more answers
I'll give brainlliest to whoever anwsers
postnew [5]

Answer:

Step-by-step explanation:

booom

8 0
3 years ago
Which of the following is a correct interpretation of the expression 3 - (-5)?<br> Chanc 1 answer.
Juliette [100K]

Answer:

8

Step-by-step explanation:

3 - (-5)

This can be rewitten to

3 + 5

Why?

2 negatives cancel each other out to make a positive, therefore:

3 + 5 = 8 or 3 - (-5) = 8

5 0
3 years ago
Read 2 more answers
What is the solution for log z + 12 = 9?<br><br>A: 000.1 B: -1,000 C: -0.001 D: 1,000
Ivahew [28]

Answer:

z + 12 = 9

Reorder the terms:

12 + z = 9

Solving

12 + z = 9

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '-12' to each side of the equation.

12 + -12 + z = 9 + -12

Combine like terms: 12 + -12 = 0

0 + z = 9 + -12

z = 9 + -12

Combine like terms: 9 + -12 = -3

z = -3

Simplifying

z = -3

Step-by-step explanation:

8 0
3 years ago
A cylindrical soup can has a radius of 1.2 in. and is 6 in. tall. What's the volume?
Sergio [31]

Answer:

Volume= 27. 12inches³

Step-by-step explanation:

to solve this question lets write out the parameters given

radius of the cylinder  = 1.2 inches

height of the cylinder = 6 inches

volume of the cylinder = ?

<u>solution</u>

the fomular to find the volume of a cylinder is given to  be

Volume= πr²h

Volume= 3.14 × ( 1.2)² × 6

Volume= 3.14 × 1.44 × 6

Volume= 27. 12inches³

therefore the volume of the cylinder equals to 27. 12inches³

7 0
3 years ago
Other questions:
  • BRAINLIEST ANSWER! A spinner is divided into 4 equal sections and is spun 100 times landing on yellow 27 times, blue 21 times, r
    9·1 answer
  • The figure is reflected across the x-axis and dilation by a scale factor of 3
    15·1 answer
  • Is each expression algebraic or numerical<br> a. 7/2 <br> b. 4m + 6 <br> c. 2(5 - 4)
    10·1 answer
  • Can someone PLEASE help me with questions #5 and 6
    13·1 answer
  • John went shopping and bought each of his 5 nephews a gift, either a video costing $14.95 or a CD costing $16.88. He spent $76.6
    5·1 answer
  • Ignore them workings out.<br> Can someone show me how to work this out
    5·1 answer
  • Help me pls solve this
    8·2 answers
  • A milk truck has a diameter of 10 and feet and a height of 50 feet. How much milk can the truck hold?
    7·1 answer
  • Is a number that is____________<br> a multiple of two or more numbers.
    5·1 answer
  • What must be true for line EF to not intersect plane L?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!