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kogti [31]
4 years ago
8

How to expand (2x+1)(x+1)

Mathematics
2 answers:
Inga [223]4 years ago
8 0
(2x+1)(x+1)
Now multiply 2x to both x and +1
2x^2+2x
Do the same with 1 multiply it to x and +1
2x^2+2x +x+1
Simplify
2x^2+3x+1
Kisachek [45]4 years ago
6 0
You must perform indicated multiplication...

2x(x)+2x(1)+1(x)+1(1)

2x^2+2x+x+1  now combine like terms...

2x^2+3x+1
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I need help on 1 and 2
Naily [24]

Answer:

1. ∠1 and ∠3. ∠1 and ∠2.

2. ∠6 and ∠5. ∠6 and ∠4

Step-by-step explanation:

Adjacent angles are two angles that have a common vertex but do not overlap. The ones above are the pairs of adjacent angles that share a common vertex, but do not overlap.

8 0
3 years ago
You roll a 6-sided die two times. What is the probability of rolling a 4 and then rolling a 2? (Write your answer as a fraction
Delicious77 [7]

Answer:

1/36

Step-by-step explanation:

On the first throw, the probability of rolling any particular number, 1 through 6, is 1 out of 6. So the chance of rolling a 4 is 1/6.

On the second roll, your probability of rolling a 2 is 1/6.

The 'trick' is knwoing what to do with those two numbers.

Here's the rule: If events are dependent on one another, you multiply the probabilities.

Any time you see a scenario where X has to happen <u>and then </u>some other thing (X, Y, or whatever) has to happen, the events are dependent.

Probability of rolling a 4 <u>and then</u> rolling a 2 = 1/6 * 1/6 = 1/36

Hope this helps.

4 0
3 years ago
Can someone please help me with a histograms quiz!!
viva [34]
What’s the question?
6 0
3 years ago
PLS HELP ASAP! Given a cone with a height of 6 cm and a base diameter of 6 cm, what is the volume of the cone? Use 3.24 for π
Sholpan [36]

Answer:

56.52 cm³

Step-by-step explanation:

\boxed{volume \: of \: cone =  \frac{1}{3} \pi {r}^{2}h }

Diameter= 2 ×radius

Radius

= 6 ÷2

= 3cm

Height, h= 6cm

Volume of the cone

=  \frac{1}{3} (3.14)( {3}^{2} )(6)

= 56.52 cm³

5 0
3 years ago
How many pages can Jorge print in 3/5 of an hour if he can print 24 pages every 15 minutes?
MariettaO [177]

Answer:

57.6 pages

Step-by-step explanation:

First, you need to identify how many minutes are in 3/5 of an hour:

1 hour = 60 minutes

3/5 of an hour = 3/5 of 60 minutes

= 3/5(60)

= 36

So, you need to find out how many pages can be printed in 36 minutes. To figure this out, a ratio can be used:

15 : 24

36 : p

p represents pages in 36 minutes.

Now, you need to solve the ratio by figuring out what you need to multiply 15 by to get 36 and then multiplying that by 24:

15 * 36/15 = 36

36/15 = 2.4

24*2.4

= 57.6 pages

5 0
3 years ago
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