All categories

3 years ago

What is (X-3)(3x+4) simplified

Mathematics

2 answers:

ozzi3 years ago

7 0

It’s
3x^2+4x-9x-12
Because x*3x =3x^2,
X*4=4x,
-3*3x=-9x
And -3*4=-12

ser-zykov [4K]3 years ago

3 0

Hey there!!

Given equation :

... ( x - 3 ) ( 3x - 4 )

... ( x ) ( 3x ) + ( x ) ( -4 ) + ( -3 ) ( 3x ) + ( -3 ) ( -4 )

... 3x² - 4x - 9x + 12

... 3x² - 13x + 12

Hope my answer helps!!

You might be interested in

Help me plzzzzzzzzzzzzzzzzzzz

4vir4ik [10]

Answer:

5.5; 11.00; 16.50

$E = 5.5h$

Step-by-step explanation:

Given

The attached table

Solving (a): Complete the table

First, calculate the slope (m)

$m = \frac{E_2 - E_1}{h_2 - h_1}$

So:

$m = \frac{27.5- 22.00}{5-4}$

$m = \frac{5.50}{1}$

$m = 5.50$

So, the equation of the table is:

$E = m(h - h_1) + E_1$

$E = 5.5(h - 4) + 22$

$E = 5.5h - 22 + 22$

$E = 5.5h$

When h =1,2,3

$E = 5.5 * 1 = 5.5$

$E = 5.5 * 2 = 11.00$

$E = 5.5 * 3 = 16,50$

6 0

3 years ago

The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is 3408 miles, with a variance

Murrr4er [49]

Answer:

The probability that the mean of a sample of 36 cars would be less than 3245 miles

P(X⁻≤3245) = 0.975

Step-by-step explanation:

Step(i):-

The mean number of miles between services

μ= 3408 miles

The Variance of miles between services

σ² = 249,001

σ = √249,001 = 499

Let 'X' be a random variable in a normal distribution

Given sample size 'n' =36

Step(ii):-

$Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }$

Z = -163/83.16 = 1.96

The probability that the mean of a sample of 36 cars would be less than 3245 miles

P(X⁻≤3245) = P(Z≤1.96)

= 0.5 + A(1.96)

= 0.5 + 0.4750

= 0.975

Final answer:-

The probability that the mean of a sample of 36 cars would be less than 3245 miles

P(X⁻≤3245) =0.975

6 0

3 years ago

Given the function: f(x)=-5x+13, solve when f(3)

ioda

Yo mean evaluate
plug 3 for every x yo see
f(3)=-5(3)+13
f(3)=-15+13
f(3)=-2

f(3)=-2

3 0

3 years ago

A 96 ounce container of orange juice cost $4.80 at what price should a 128 ounce container be sold in order for the unit rate fo

Alex

It is $0.05 per ounce, so at that rate, a 128 oz container would cost $6.40.

5 0

3 years ago

Read 2 more answers

Which equation should be used to answer “24 is 40% of what number?”

Mariana [72]

Answer:

24=40/100×x

Step-by-step explanation:

i think the equation is

24=40/100×x

24 is equal to 40 percent of a number which I have represented by x

I hope this helps

7 0

3 years ago

Read 2 more answers