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3 years ago

14

Simplify the following expression: 4(y + 3) − 6(y − 2) + 5

2 answers:

vichka [17]3 years ago

7 0

Answer:

-2y +29

Step-by-step explanation:

Alexxandr [17]3 years ago

6 0

Answer:

-2y+29

Step-by-step explanation:

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A researcher uses an anonymous survey to investigate the study habits of American college students. Based on the set of 56 surve

tresset_1 [31]

Answer:

Statistic

Step-by-step explanation:

A statistic is any quantity computed from values in a sample. Some examples of statistics are: sample mean (also called average, like in this case), sample median, sample mode, sample standard deviation, sample quartiles and sample percentiles.

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3 years ago

Which of the measures below represents 4 gallons and 2 pints converted to pints?

N76 [4]

C because there is 32 pints in 4 gallons

3 0

2 years ago

What is the VALUE of the underlined digit? 4,289,302 7,390,276

Alex17521 [72]

Answer:

8 is 10trillion and 7 is 1 million hope this helps!

Step-by-step explanation:

7 0

3 years ago

What is the rate of change for f(x)=-2cos4x-3 on the interval from x=0 to x=pi over 4

Anestetic [448]

Answer:

$\frac{16}{\pi}$

Step-by-step explanation:

The average rate of a function $f$ on interval $x=a$ to $x=b$ is:

$\frac{f(b)-f(a)}{b-a}$ .

$a=0$ and $b=\frac{\pi}{4}$ here for this problem where $f(x)=-2\cos(4x)-3$ .

So we will need to evaluate $f$ for $x=0 \text{ and } b=\frac{\pi}{4}$ .

To find $f(0)$ we will replace $x$ in $f(x)=-2\cos(4x)-3$ with $0$ :

$f(0)=-2\cos(4(0))-3$

$f(0)=-2\cos(0)-3$

$f(0)=-2(1)-3$

$f(0)=-2-3$

$f(0)=-5$

To find $f(\frac{\pi}{4})$ we will replace $x$ in $f(x)=-2\cos(4x)-3$ with $\frac{\pi}{4}$ :

$f(\frac{\pi}{4})=-2\cos(4(\frac{\pi}{4}))-3$

$f(\frac{\pi}{4})=-2\cos(\pi)-3$

$f(\frac{\pi}{4})=-2(-1)-3$

$f(\frac{\pi}{4})=2-3$

$f(\frac{\pi}{4})=-1$

So now we need to compute the change in $f$ over the change in $x$ :

$\frac{-1-(-5)}{\frac{\pi}{4}-0}$

$\frac{-1+5}{\frac{\pi}{4}}$

Dividing by $\frac{\pi}{4}$ is the same as multiplying by $\frac{4}{\pi}$ :

$(-1+5)\cdot \frac{4}{\pi}$

$4 \cdot \frac{4}{\pi}$

$\frac{16}{\pi}$

8 0

3 years ago

PLS HELP I'LL GIVE THE BRAINLYEST ANSWER!!!

LenKa [72]

Answer:

1st one = one solution

2nd one = no solution

3rd one = no solution

4th one = many solutions (i think im not sure ab this one..)

5th one = one solution

6th one = many solutions

Step-by-step explanation:

hope this helps! brainliest pls ^^

6 0

3 years ago