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2 years ago

What is the greatest common factor (GCF) of 80 and 12?

Mathematics

1 answer:

jekas [21]2 years ago

7 0

The Greatest Common Factor (GCF) is 4

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Nvm i did it . it took me a long time but i did it

ra1l [238]

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2 years ago

Which operation flips the graph of a function over the x-axis

AlladinOne [14]

Multiplying by the function of -1

8 0

2 years ago

Elimination method: ax+by=r, -bx+cy=s

Alex17521 [72]

$\left[\begin{array}{ccc}ax+by=r\\\\-bx+cy=s\end{array}\right]$

Isolate x for $ax+by=r$

$x= \frac{r-by}{a} ; a \neq 0$

Subsititute $x= \frac{r-by}{a}$

$-b \frac{r-by}{a} +cy=s$

Isolate r for : $-b \frac{r-by}{a}+cy=s$

$r=- \frac{as-acy-b^2y}{b} ; a \neq 0;b \neq 0$

For x : $\frac{r-by}{a}$

Subsititute r = $- \frac{as-acy-b^2y}{b}$

$x= -\frac{as-acy-b^2y}{b}/a$

$x = \frac{cy-s}{b}$

The solutions to the system of equations are:

$r= -\frac{as-acy-b^2y}{b}$ and $x = \frac{cy-s}{b}$

hope this helps!

3 0

2 years ago

Fran swims at a speed of 2.8 mph in still water. The Lazy River flows at a speed of 0.8 mph. How long will it take Fran to swim

Elis [28]

Answer:

1.49 hrs or 1 hr and 30 minutes approximately

Step-by-step explanation:

if fran go 2.8m up then the river flow at a rate of 0.8m; the since we are taking the speed of fran and river to be constant. the ratio between their speed will always remain constant. that is if 0.8/2.8 = 0.286≈ this will be always constant.

so if he go up 4m then the horizontal length has to be 1.143 because 1.143/4 = 0.286.

now we find the distance between frans initial positon and final position. to find it we use pythagoras theorem.

$\sqrt{(4^2 + 1.143^2)} =4.160 miles$

to find the time divide distance traveled by speed;

4.160/2.8 = 1.49 hrs

7 0

2 years ago

Choose the correct simplification of (2x)(4y). 8xy 6xy 2xy 8y

tatuchka [14]

It would be 8xy
Because you would multiply the 2 numbers together

7 0

3 years ago

Read 2 more answers