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
Lilit [14]
3 years ago
15

Please help I need to get this done really bad

Mathematics
1 answer:
kupik [55]3 years ago
3 0

Answer:

1 . 4 (x + 6)

2. 9 x × (x+9)

3. 3x× (x-6)

4. 225+75x

You might be interested in
The mosquito population is a function of rainfall, and can be approximated by the formula N(x)=−x3+45x2+1000 where x is the numb
KiRa [710]

Answer:

Therefore the population will be maximum when x=30 inches.

Step-by-step explanation:

Given that, the mosquito population is a function of rainfall and can be approximated by the formula

N(x)= -x^3+45x^2+1000

where x is the number of inches of rainfall.

N(x)= -x^3+45x^2+1000

Differentiating with respect to x

N'(x)= -3x^2+90x

Again differentiating with respect to x

N''(x)=-6x+90

Now we set N'(x)=0

-3x^2+90x=0

\Rightarrow -3x(x-30)=0

\Rightarrow x=0,30

N''(0)=-6.0+90=90>0

N''(30)=-6.30+90=-90

Since at x=30, N''(x)<0, So at x=30, N(x) has maximum value.

Therefore the population will be maximum when x=30 inches.

5 0
3 years ago
Tell whether the angles are vertical or adjacent and solve for x. Solve 11 and 12 for 20 points and brainest.
stiv31 [10]

Answer:

11) x = 45

12) x = 30

Step-by-step explanation:

11)

3x + x = 180

4x = 180

x = 45

12)

4x = 5x - 30

4x - 5x = -30

-x = -30

x = 30

5 0
3 years ago
What ate the values of the 7s in the number 17,327?
zubka84 [21]
7,000 and 7 hope this helped

7 0
4 years ago
Read 2 more answers
What is the solution to the following system of equations?
fenix001 [56]

Answer: (5,0)

Step-by-step explanation:

x - 3y =5 -----------(1)

2x + y = 10 ----------(2)

By elimination method, multiply eqn(1) by 2

2x - 6y = 10 ------------(3)

eqn(3) - eqn(2)

-7y = 0

Divide bothside by -7

y= 0

Now, we substitute the value of y in eqn(1)

x - 3(0) = 5

x - 0 = 5

x=5

Therefore,x=5 and y=0

8 0
3 years ago
Read 2 more answers
Need a little help with this question please"?
zhuklara [117]
Y= 2x-3/4
M is the slope
B is the y-intercept
3 0
3 years ago
Other questions:
  • The length of a rectangle is 2 yd longer than its width. if the perimeter of the rectangle is 40 yd , find its area.
    6·1 answer
  • Solve: 2x - 3 = 6 what is x please help me asap thanks
    15·2 answers
  • Elainas old bicycle had tires with a 12-inch diameter her new bicycle had tires with a 16-inch diameter what is the difference i
    11·1 answer
  • 2 (x + 6) + 7 please help me with this
    11·2 answers
  • there are 5 more than twice as many students taking Algebra 1 then taking algebra 2. If there are 44 students taking Algebra 2,
    12·2 answers
  • HELP HELP HELP HELP HELP
    6·2 answers
  • Lana earns $7.95 per hour . How much does she earn in 8 ?
    11·2 answers
  • If a 16 oz package of cereal is $4.00, then what is the unit rate: 1 oz/.25 or .25/1 oz?
    10·2 answers
  • <img src="https://tex.z-dn.net/?f=50.705%20%5Cdiv%202.646" id="TexFormula1" title="50.705 \div 2.646" alt="50.705 \div 2.646" al
    9·2 answers
  • Rashaad leans a 16-foot ladder against a wall so that it forms an angle of 66° with the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!