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fredd [130]
3 years ago
12

Factor 3x^2 + 13x + 4? Explain the steps! ^ = to the power of

Mathematics
1 answer:
Brut [27]3 years ago
8 0
Since coefficient of x^2 is prime and both second and third term are positive, it must be in form (3x+_)(x+_).

There is three possibles for these blank spaces;
1,4
2,2
4,1

Because coefficient of second term is 13 = 1+12 = 1+3*4, these blank space should be 1,4

So your answer is (3x+1)(x+4)

Hope this makes sense.
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Can some one help me asap
zavuch27 [327]
It'd be easier to do #18 if y ou were to break it up:

                                                        14* (first term + 14th term)
Sum from n=1 to 14 of n =  S      = ---------------------------------
                                               14                       2
                                    
     14(1+14)
= ---------------- = 7(15) = 105 
           2

The sum of twice that is 210.  The sum of "1 from n=1 to n=14" is just 14.

The final sum is 210 + 14 = 224 (answer)
4 0
3 years ago
What is 4 1/5+3 1/10<br><br> a. 7 2/15<br> b. 7 3/10<br> c. 7 1/5<br> d. 7 1/50
Black_prince [1.1K]
7 1/5th is the anwser but thats easy your just being lazy i think
7 0
4 years ago
Find the measure of arc TV
Korolek [52]
90 degrees
Hope this helps
6 0
3 years ago
Find the value of x to the nearest tenth​
xz_007 [3.2K]

Answer:

9.0

Step-by-step explanation:

x = 7 / cos 39°

= 7 / 0.7771

= 9.0

4 0
3 years ago
Consider the following pair of equations:
V125BC [204]
The pair of equations:
y = x + 4
y = -2x - 2

To solve the system of equation by substitution, you would substitute one variable for it's equivalent expression. Combining the pair of equations into one equation in only one variable. The easiest way to do this is by substituting out the variable y because it is already alone on one side of the equal sign. Substitute the y in the second equation for: x+4

x+4 = -2x - 2
solve for x
x + 2x = -2 -4
3x = -6
x = -2

now use the value for x to find y by putting into either equation.

y = x + 4
y = (-2) + 4
y = 2

solution is: (-2, 2)
4 0
3 years ago
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