3 years ago

Can someone please help with my homework

Mathematics

1 answer:

densk [106]3 years ago

5 0

The answer is C
g(x) = (x+12)^2

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True or False. To select 3 items out of 4 distinct objects, use C(4,3).

kenny6666 [7]

Answer:

True.

Step-by-step explanation:

C(4, 3) means the number of combinations from 4 items taking 3 at a time. We are selecting 3 distinct items and it doesn't say anything about the order in which they are selected , so we use a combination formula not a permutation ( where order does matter).

C(4, 3) = 4! / 3! 1!

= 4*3*2*1 / 3*2*1*1

= 4.

There are 4 ways to select 3 items from 4.

6 0

3 years ago

26=6(5-a)<br><br> Show work please. <br> Pretty sure u distribute

GREYUIT [131]

Answer:

26=6(5-a)

26=35-6a

-9=-6a

a=1.5 or 1 1/2

3 0

3 years ago

Vlad spent 20 minutes on his history homework and then completely solved x math problems that each took 2 minutes to complete wh

frozen [14]

Answer:

y = 2x + 20

$y\geq 20$

$x\geq 0$

Step-by-step explanation:

Vlad spent 20 minutes on history. Then Vlad spent 2 minutes on each math problem for homework, this is 2x. So in total, he spent 20+2x on homework. Depending on how many problems he did, the total time y can be found. This is the equation 20+2x=y.

If Vlad did 0 math problems then he spent at least 20 minutes on homework from history. This is the constraint $y\geq 20$ .

We also know Vlad can do many math problems but the least amount he did was 0, so the second constraint is $x\geq 0$ .

5 0

3 years ago

I need help plz help me

sineoko [7]

Since the denominators are the same, just add the tops. 1x+2 all over y^2-8

7 0

4 years ago

How to simplify √52 in simplest form

Marina86 [1]

$\sqrt{52}=\sqrt{4\cdot13}=2\sqrt{13}$