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
seraphim [82]
3 years ago
7

What is the negative solution to this equation? 4x^2+12x=135​

Mathematics
1 answer:
Scrat [10]3 years ago
6 0

Answer:

-\frac{15}{2}

Step-by-step explanation:

\mathrm{Subtract\:}135\mathrm{\:from\:both\:sides}

4x^2+12x-135=135-135

\mathrm{Simplify}

4x^2+12x-135=0

x1, 2=−b±√b2−4ac2a For     a=4, b=12, c=−135x1, 2=−12±√122−4· 4(−135)2· 4

You might be interested in
A random sample of 600 incoming freshmen at your University is given a survey. One question asks for the number of texts the stu
guapka [62]

Answer:

C 10% Condition.

Step-by-step explanation:

Let's Look at them one by one.

A: Large Enough sample condition.

this is met because 600 students is a good number to carry out a surwey.

B: Randomization,  600 incoming freshman are definitely random.

C: we are left with C so the answer is C.

8 0
3 years ago
Please awnser quqestion almost done asking questions
grigory [225]

Answer:

12 feet

Step-by-step explanation:

Use the Pythagorean Theorem.

5² + x² = 13²

25 + x² = 169

169 - 25 = 144

√144 = 12

12 feet

4 0
3 years ago
How do you find the quadratic function with vertex (-2,5) and point (0,9)?
Anastaziya [24]

Answer: y = (x +2)² + 5

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

y = a(x - h)² + k <em>where "a" is the leading coefficient and (h, k) is the vertex</em>

Since we don't know "a", we need to plug in the point (x, y) and the vertex (h, k) to solve for "a":  (x, y) = (0, 9) and (h, k) = (-2, 5)

y = a(x - h)² + k

9 = a(0 - (-2))² + 5

9 = a(0 + 2)² + 5

9 = a(2)² + 5

<u>-5 </u>   <u>          -5 </u>

4  =  a(4)

<u>÷4 </u>   <u> ÷4   </u>

 1 = a

Next, plug in "a" and the vertex (h, k):

y = a(x - h)² + k

y = 1(x +2)² + 5

y = (x +2)² + 5


6 0
4 years ago
<img src="https://tex.z-dn.net/?f=3%28x%20%2B%205%29%20%5Cleqslant%203x%20%2B%2018" id="TexFormula1" title="3(x + 5) \leqslant 3
klemol [59]

3(x+5)\leq 3x+18\\\\3x+15\leq 3x+18\\\\15\leq 18\\\\x\in\mathbb{R}

8 0
3 years ago
Erica is making feathered caps for her school play. Each cap must have 3 feathers. Write an equation that represents the number
FrozenT [24]

Answer:

f=3c

Step-by-step explanation:

Given:

Number of feathers = f

Number of caps = c

Number of feathers in each cap = 3

Now, solving by setting up a proportion.

1 cap has 3 feathers. 'c' caps has 'f' feathers.

This gives,

\dfrac{1}{3}=\dfrac{c}{f}

Solving by cross multiplication, we get:

1\times f=3\times c\\\\f=3c

Therefore, the equation representing the number of feathers 'f' Erica needs to make 'c' caps is given as:

f=3c

8 0
3 years ago
Other questions:
  • 4(a+5) in distributive form
    7·2 answers
  • declaration a plane at the uniform rate of 8.0 meter/second ^2 , a pilot stops the plane in 484 meters. how fast was the plane g
    14·1 answer
  • Give two real-world situations that could be represented by the value 30
    11·2 answers
  • When functions are defined by more than one​ equation, they are called?
    8·2 answers
  • As the exponent on the base 10 increases, does
    12·1 answer
  • I need help on how to solve ( x2-5x-12) ÷ (x+3)
    6·1 answer
  • I can’t seem to find the value of n in this peoblem
    7·2 answers
  • 1.Write an equation that models the following verbal statement and show/explain how you know your translation is correct.
    10·1 answer
  • Everyone at Jaylen's school wore either brown or blue for school spirit day. 90 students wore brown and 10 students wore blue. W
    12·2 answers
  • I NEED SOME HELP PLEASE​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!