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Rama09 [41]
3 years ago
13

What is the coefficient of x2 in the expansion of (x + 2)^3

Mathematics
1 answer:
galina1969 [7]3 years ago
6 0

Answer:6

Step-by-step explanation:

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Question 2(Multiple Choice Worth 5 points) (04.01)The Boardman family walked two over five of a mile in two over seven of an hou
Zolol [24]

Answer:

The unit rate in miles per hour = <em>1.4 miles/hr</em>

Step-by-step explanation:

Given that:

Distance walked by Boardman family = Two over five of a mile = \frac{2}{5}\ miles

Time taken by Boardman family = Two over seven of an hour = \frac{2}{7}\ hour

To find:

The unit rate in the miles per hour = ?

Solution:

Formula for the rate or the speed can be given as:

Speed = \dfrac{Distance}{Time}

Putting the values:

\Rightarrow \dfrac{\frac{2}5}{\frac{2}7}\\\Rightarrow \dfrac{7}{5}\\\Rightarrow \bold{1.4\ miles/hr}

So, the unit rate in miles per hour = <em>1.4 miles/hr</em>

4 0
3 years ago
Plz help 2-5!!! its already missing I WILL GIVE BRAINLIST!!!!!!!
lisabon 2012 [21]

Answer:

#2: 26   #3:  68  #4) 19   #5) 23

Step-by-step explanation:

#2) So, 208 divided by 8 = 26

#3)  92 - 24 = 68

#4)   76(.75) = 57, 76-57 = 19

#5)   31 - 8 = 23

Hope i helped.

7 0
2 years ago
What are the angle measurements of 6x + 1° = 3x + 11°
hodyreva [135]

Answer:

x=3\frac{1}{3}^\°

Step-by-step explanation:

Given equation:

6x+1\°=3x+11\°

To find the angle measure of x   

Solution:

In order to find the angle measure x , we will isolate x on left side by carrying out math operations on both sides.

We have:

6x+1\°=3x+11\°

Subtracting both sides by 3x  

6x-3x+1\°=3x-3x+11\°

 3x+1\°=11\°

Subtracting both sides by 1°.

3x+1\°-1\°=11\°-1\°

3x=10\°  

Dividing both sides by 3.

\frac{3x}{3}=\frac{10\°}{3}

x=\frac{10}3}^\°

Converting fraction to mixed number by dividing and writing the quotient as whole number and the remainder as numerator.

∴  x=3\frac{1}{3}^\°  (Answer)

7 0
3 years ago
The largest Egyptian pyramid is 146.5 m high. When Nika stands far away from the pyramid, her line of sight to the top of the py
Cerrena [4.2K]
First, you need to figure out whether you need to use sin, cosine or tan.
Since we know that we need to find the adjacent side of the triangle and also since we already know the opposite side of the triangle from the angle, we can use tan.
tan(20)=opposite/adjacent
tan(20)=(146.5)/adjacent
adjacent=(146.5)/tan(20)

403 meters away form the pyramid
 
 
3 0
3 years ago
Read 2 more answers
Which statement is true about the parts of this expression? 5/6 + 1/4x - y The constant is 5/6. The only coefficient is 1/4. The
madreJ [45]
We have the following expression:
 5/6 + 1 / 4x - y
 Let's identify it step by step:
 Variables: x and y
 Coefficients: 1/4, -1
 constant: 5/6
 Thus,
 The constant is 5/6
 Answer:
 
The following statement is true about the parts of this expression:
 
The constant is 5/6
7 0
3 years ago
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