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
blagie [28]
3 years ago
6

Two more than than 4 times a number is -18

Mathematics
1 answer:
wolverine [178]3 years ago
7 0
-4..................
You might be interested in
2. Factor f(x) = x4 + 10x3 + 35x2 + 50x + 24 completely showing all work and steps with synthetic division. Then sketch the grap
telo118 [61]

We need to use rational root theorem to find out roots here.

The rational root theorem states that if p(x) is a polynomial with integer coefficients and if \frac{p}{q} is a zero of p(x) then p is a factor of constant term and q is a factor of leasing term coefficient.

Here factors of constant term are 1,2,3,4,6,8,12,24,-1,-2,-3,-4,-6,-8,-12, and -24.

And factors of leading coefficient is -1,1.

Hence possible roots may be -1,1,-2,2,-3,3,-4,4,-6,6,-8,8,-12,12,-24 and 24.

Let us plugin these in f(x) to find zeroes.

f(-1)=(-1)^{4}+10(-1)^{3}+35(-1)^{2}+50(-1)+24 =1-10+35-50+24=0

Hence x=-1 is a zero which means x-(-1)=x+1 is a factor.

Let us use synthetic division to find quotient.

-1 | 1  10  35  50  24

  <u>| 0  -1  -9  -26   -24</u>

   <u> 1    9  26  24    0</u>

Hence quotient is x^{3} +9x^{2} +26x+24

Since all coefficients are positive, root must be negative. Let's plugin all remaining negative numbers in the quotient.

(-2)^{3}+9(-2)^{2}+26(-2)+24 = 0

Hence x+2 is another factor.

Let us find quotient again using synthetic division.

-2 | 1   9  26   24

   <u>| 0  -2  -14   -24</u>

   <u>  1    7    12     0</u>

Hence quotient is x^{2} +7x+12

Again we got quotient with all positive coefficients, let us plugin remaining negative numbers from rational root theorem.

(-3)^{2}+7(-3)+12=-9-21+12=0

Hence x+3 is also a factor.

Let us find quotient using synthetic division.

-3 | 1  7  12

   <u>| 0 -3  -12</u>

    <u> 1    4    0</u>

Hence quotient is x+4.

So, f(x)=x^{4}+10x^{3}+35x^{2}+50x+24 =(x+1)(x+2)(x+3)(x+4)

Please have a look at the graph attached.

4 0
3 years ago
5 less than the product of 8 and a number
zheka24 [161]
N-the number

the product of 8 and the number: 8 × n = 8n

5 less than the 8n: <u>8n - 5</u>
4 0
3 years ago
Read 2 more answers
What is the equation for the line?
Irina-Kira [14]
In order to find the equation of a line, you would have to use the equation y=mx+b. 

First, find the slope: \frac{y_{2}- y_{1} }{x_{2} x_{1} }
There is (1,8) and (2, 16) so plug that in 16-8/2-1 = 8. That's your slope! (Or the m)

Next in order to find b, you have to plug in a point:
y=8x+b
Take (1,8) and plug it in for x and y:
8=8(1)+b
b=0
Your y intercept is 0 (which you can also see on the graph)

So your answer is: y=8x
7 0
3 years ago
Solve the equation using the Quadratic Formula: (Hint: You may select
KIM [24]

Answer:

x = 3,2

Step-by-step explanation:

Solve the equation for x by finding a, b, and c of the quadratic then applying the quadratic formula.

please mark brainly

3 0
2 years ago
Read 2 more answers
Bla lee la. la la lee bla​
eimsori [14]

Answer:laaa vidas so las vi vi ras ony laa viras so las vi vi ras

Step-by-step explanation:laaaa vidas so las vi vi ras boty hastice hastice sola vi vi rasss*birb falling*

6 0
3 years ago
Other questions:
  • Rectangle has a perimeter of 48". The length is 4" more than the width. What is the length?
    7·2 answers
  • My math problem is: X/8 + 6 = -8
    6·1 answer
  • The principal P is borrowed at a simple interest rate r for a period of time t. Find the simple interest owed for the use of the
    15·1 answer
  • Nate is watching a baseball game. So far, 15 batters have gotten a hit and 5 batters have not. Out of the next 4 batters, how ma
    14·1 answer
  • If there are always 2 red sections, how does the number of total sections in the spinner relate to the theoretical probability o
    15·1 answer
  • What is the solution? y = 3x - 5 <br> y = 1\3*+3
    6·1 answer
  • What is the x and y intercept of 2/5x + 1/2y = 20​
    5·1 answer
  • HELP QUICK PLEASE!
    12·1 answer
  • 52, 24, 5, 72, 49, 52,9 Find the range of the data set.​
    10·1 answer
  • Solve each problem and decide which is the best of the choices given.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!