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3 years ago

What is the product of the binomials (3x+1) (2x-4)

Mathematics

2 answers:

vekshin13 years ago

6 0

Answer:

6x^2 -10x - 4

Step-by-step explanation:

There are many ways to solve this. For this problem I will use the FOIL method.

F - first

O - outer

I - inner

L - last

Multiply the first term in each parenthesis ---> 6x^2

Multiply the outer terms in each parenthesis ---> -12x

Multiply the inner terms in each parenthesis ---> 2x

Multiply the last terms in each parenthesis ---> -4

Combine these together:

6x^2 -12x + 2x - 4

Combine like terms:

6x^2 -10x - 4

^ And that is our final answer!

Vlad1618 [11]3 years ago

4 0

Answer:

$6x^{2} -10x - 4$

Step-by-step explanation:

$6x^{2} - 12x + 2x -4$

$6x^{2} -10x - 4$

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How to evaluate this f (x) = -x^+1 for x =-3

sukhopar [10]

Just plug in -3 for x. So it will be -(-3)^+ 1
Which is 3^+1.
I'm confused by your ^ sign I'm not sure if this is supposed to be squared or not...? But just solve/simplify the equation.
Hope this helps!

4 0

3 years ago

Read 2 more answers

The scores of 1000 students on a standardized test are normally distributed with a mean of 50 and a standard deviation of 5. wha

ra1l [238]

We are looking to find P(X>60 students)

X is normally distributed with mean 50 and standard deviation 5

We need to find the z-score of 60 students
$Z= \frac{60-50}{5}=2$

To find the probability of P(Z>2), we can do 1 - P(Z<2)
So we read the probability when Z<2 which is 0.9772, then subtract from one we get 0.0228

The number of students that has score more than 60 is 0.0228 x 1000 = 228 students

3 0

3 years ago

Can u guys answer my question 13 and 14 pls

Alika [10]

Answer:

√2=1.414

then :√8 +2√32 +3√128+4√50

√8=√2³ =2√2

2√32=√2^5 = 4*2√2 = 8√2

3√128 = 3√2^6*2=8*3√2 =24√2

4√50 =4√5²*2= 20√2

add results : 2√2+8√2 +24√2+20√2=54√2

<h2>54√2=54×1.414=76.356 ( it is not in the options)</h2>

x=7-4√3

√x+ 1/√x

√(7-4√3) +1/√(7-4√3) =

(8-4√3)/√(7-4√3)

(8-6.93)/√(7-6.93) = 4 ( after rounded to the nearest whole number)

4 is your answer

3 0

2 years ago

Find m angle QSRIf m angle TSQ=15x , m angle TSR=173^ , and m angle QSR=10x-2

Serggg [28]

${\color{red}{\huge{\underbrace{\overbrace{\mathfrak{\:\:\:\:\:\:\:꧁"Answer"꧂\:\:\: }}}}}}$

$\small\color{blak}{{\underline{\bold{ Find \:a X } } } }$

$\small\color{black}{{\underline{\bold{173°=15z+10x-2 } } } } \\ = 173 = 25x - 2 \\ = - 25x = - 2 - 173 \\ = - 25x - 175 \\ = \small\color{blue}{{{\boxed{\tt\red{} \:\:\:\:\:\:\:\:\:\: x=7\:\:\:\: }}}}$

$\small\color{blak}{{\underline{\bold{ Find\:a\:m$

$\small\color{blak}{{\underline{\bold{ 10(7)-2 } } } }\\=70-2\\=\small\color{red}{{{\boxed{\tt\red{} \:\:\:\:\:\:\:\:\:\: m$

$\Large\color{red}{{\underline{\mathfrak {{꧁"Carry\:on\: learning"꧂ }}}}}$

7 0

3 years ago

A family is purchasing concrete in order to create a foundation for a rectangular outdoor

Murrr4er [49]

Answer:

42.5 Cubic Yards

Step-by-step explanation:

To find volume of a rectangle you do length*width*height to get the volume, so 17*15*0.5(because 6 inches is half of a foot) you get 127.5, but they're asking for it in yards not feet so you need to divide 127.5 by 3 and that will give you 42.5.

4 0

3 years ago