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
Rina8888 [55]
3 years ago
13

Solve by factoring 6x^2 +13x -28 =0

Mathematics
2 answers:
Sauron [17]3 years ago
8 0

Answer:

x=4/3 or x=-7/2

Step-by-step explanation:

(3x-4)(2x+7)

Alik [6]3 years ago
4 0

Answer:

x=-7/2, x=4/3

Step-by-step explanation:

6x^2+13x-28=0

Multiply 6 and -28 to get -168

Find 2 numbers that multiply to 168 but add to 13

They are 21 & -8

Rewrite the equation into:

6x^2+21x-8x-28=0

Factor

3x(2x+7)-4(2x+7)=0

(3x-4)(2x+7)=0

3x=4

x=4/3

2x=-7

x=-7/2

You might be interested in
The volume of a cube is 710cm3 work out the length of its side rounded to 1 decimal place​
Fofino [41]
8.9 because I used a calculator
6 0
3 years ago
A 9-yard roll of string costs $3.42. What is the unit price?
Karolina [17]

<em>Answer:</em>

<em>$0.38 per yard</em>

<em>Step-by-step explanation:</em>

<em>Step 1:</em>

Given; A 9-yard roll of string that costs $3.42.

Required; To find the unit price

<em>  Step 2:</em>

Convert $3.42 to cents

1 ~dollar=100~cents ~\\therefore,\\$3.42=3.42~x~100=342~cents~

<em>Step 3:</em>

<em>Find the unit price</em>

\frac{9 yard}{1 yard} =\frac{342 ~cents}{x~cents}

9x=342

\frac{9x}{9} =\frac{342}{9}

x=38~cents

<em>Convert to dollars</em>

x=\frac{38}{100}

x=0.38~per~yard

Hence the unit price is $0.38 per yard.

5 0
2 years ago
Solve the equation (128)^x=(1/2)^2x-3
dalvyx [7]

Answer:

0.79

Step-by-step explanation:

3 0
3 years ago
Graphing exponential functions and then State the domain, range and asymptote​
Luda [366]

9514 1404 393

Answer:

  D: all real numbers

  R: f(x) > 0

  A: f(x) = 0

  (-∞, 0), (+∞, +∞)

  vertical stretch by a factor of 2; left shift 2 units

Step-by-step explanation:

The transformation ...

  g(x) = a·f(b(x -c)) +d

does the following:

  • vertical stretch by a factor of 'a'
  • horizontal compression by a factor of 'b'
  • translation right by 'c' units
  • translation up by 'd' units

For many functions, horizontal coordinate changes are indistinguishable from vertical coordinate changes. Exponential functions tend to be one of those.

__

Using the above notation, you seem to have f(x) = 3^x, and g(x) = 2f(x+2). The transformation is a vertical stretch by a factor of 2, and a translation left 2 units.

__

As with all exponential functions, ...

  • the domain is "all real numbers"
  • the range is all numbers above the asymptote: f(x) > 0
  • the horizontal asymptote is f(x) = 0

The function is a growth function, so ...

  • x → -∞, f(x) → 0
  • x → ∞, f(x) → ∞

_____

<em>Additional comment</em>

The left shift is equivalent to an additional vertical stretch. The function could be rewritten as ...

  f(x) = 18(3^x)

with no left shift and a vertical stretch by a factor of 18 instead of 2.

6 0
3 years ago
Cos 105cos 15 <br> what’s the answer to this
andriy [413]
10 answer ensndjjdjsjshshshhdhdhdhdhhdh
7 0
3 years ago
Other questions:
  • What is the interquartile range of this data?
    14·2 answers
  • A hyena can run 1/4 of a mile in 22.5 seconds. At this rate, which equation can be used to determine how fast a hyena runs in mi
    5·1 answer
  • Much help needed please ​
    11·2 answers
  • Help please will gibe brainiest if correct
    8·1 answer
  • Use the graph to complete the statements about the data of a car’s hourly journey.
    8·2 answers
  • 18kg in the ratio 2:7​
    15·1 answer
  • Please help I’m not good at triangle angles
    13·1 answer
  • HELPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!
    14·2 answers
  • Is –2 − 92 positive or negative?
    6·2 answers
  • A radioactive material has a half life of 10 years. What is the fraction of the initial isotope is left after 60 years
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!