3 years ago

Solve the inequality 3(4x+1)<39

Mathematics

2 answers:

Serga [27]3 years ago

6 0

X < 3 is your answer

Genrish500 [490]3 years ago

4 0

X < 3, hope this helps :)

You might be interested in

I’m trying to get to a 1,000,000 snap score. I’m currently at 350,000. If I gain 200 a day how many more days until I reach 1,00

user100 [1]

You divide 1000 000 by 200

7 0

4 years ago

A study of the relationship between age and various visual functions (such as acuity and depth perception) reported the followin

maks197457 [2]

Answer:

(a) $\sum x_i=56.68$ and $\sum x_i^2=197.46$

(b) The sample variance is $s^2=0.530$ and the sample standard deviation is $s=0.728$

Step-by-step explanation:

(a)

The sum of these 17 sample observations is

$\sum x_i=2.79\:+2.57+\:2.73\:+3.75\:+2.27+\:2.75+\:4.00+\:4.22+\:3.88+\:4.35+\:3.41+\:4.57+\:2.38+\:3.73\:+2.75+\:3.47+\:3.06\\\\\sum x_i=56.68$

and the sum of their squares is

$\sum x_i^2=2.79^2\:+2.57^2+\:2.73^2\:+3.75^2\:+2.27^2+\:2.75^2+\:4.00^2+\:4.22^2+\:3.88^2+\:4.35^2+\:3.41^2+\:4.57^2+\:2.38^2+\:3.73^2\:+2.75^2+\:3.47^2+\:3.06^2\\\\\sum x_i^2=197.46$

(b)

The sample variance, denoted by $s^2$ , is given by

$s^2=\frac{S_{xx}}{n-1}$

where $S_{xx} =\sum x_i^2-\frac{(\sum x_i)^2}{n}$

Applying the above formula we get that

$S_{xx}=197.46-\frac{(56.68)^2}{17}\\\\S_{xx} =8.482$

$s^2=\frac{8.482}{17-1}=0.530$

The sample standard deviation, denoted by <em>s</em>, is the (positive) square root of the variance:

$s=\sqrt{s^2}$

Applying the above formula we get that

$s=\sqrt{0.530}=0.728$

3 0

3 years ago

. Evaluate 8^0 helppp please

qwelly [4]

Answer:

Step-by-step explanation:

${8}^{0} = 1 \\$

Any number raised to zero is always equal to one.

6 0

3 years ago

Simplify the expression 7y – 8y + 5y + y2 – 1

motikmotik

There’s your answer

8 0

3 years ago

Read 2 more answers

Heather answered 9 out of 12 questions correctly on her quiz. What is her score as a percent?

attashe74 [19]

the score of heater is 75%

7 0

3 years ago