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Zarrin [17]
3 years ago
11

What is (4x - 4) + (2x + 2)? (no direct answer.)​

Mathematics
1 answer:
amm18123 years ago
7 0

Answer:

6x -2

Step-by-step explanation:

(4x - 4) + (2x + 2)

4x + 2x = 6x

-4 + 2 = 2

6x - 2

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a sheep breeding farm counted a total of 40 sheep on their grounds after one year the number of sheep doubled then in the next y
SpyIntel [72]
Answer:
graph (b)

Explanation:
The farm started with 40 sheep and the number doubled each year.
So, the equation modeling this situation would be:
N(x) = 40*(2)^2
By getting the equation, we can notice that we already excluded the third and fourth choices as they have the wrong equations.

Now, we will need to select the right graph which is either graph a or graph b.
To do this, we will get the value of N(x) for different values of x as follows:
At x = 0: N(0) = 40*(2)^0 = 40
At x = 1: N(1) = 40*(2)^1 = 80
At x = 1: N(2) = 40*(2)^2 = 160

Now, taking a look at graph a, we will find that:
N(1) = 120
N(2) = 360
These numbers are not the same as the numbers we calculated, therefore, this graph is wrong

Taking a look at graph b, we will find that:
N(1) = 80
N(2) = 160
These numbers are exactly the same as the ones calculated, therefore, this graph is the correct one.

Hope this helps :)
7 0
4 years ago
a spherical storage tank has a diameter of 24 ft and is full of water. how many delivery trucks with a cylindrical tanks measuri
lbvjy [14]

Diameter of the spherical storage tank = 24 ft

So, radius of the tank = \frac{24}{2}=12 ft

Volume of the spherical tank = 4/3 * PI * r³

= \frac{4}{3}\times3.14\times12\times12\times12

= 7234.56 cubic feet

Diameter of cylindrical tank = 4 ft

So, radius = \frac{4}{2}=2 ft

Height of cylindrical tank = 10 ft

Volume of cylindrical tank = PI * r² * h

= 3.14\times2\times2\times10=125.60 cubic feet

So, the number of cylindrical tanks that can be filled from the spherical tank are =

\frac{7234.56}{125.60}=57.6

Hence, 57 cylindrical tanks can be completely filled from the big spherical tank.


4 0
3 years ago
What types of particles are found in the cloud surrounding the atom’s nucleus?
DochEvi [55]

B) negative charged particles only

It is called an electron cloud that contains electrons only.

4 0
4 years ago
Anyone knows the answer?
pickupchik [31]

Answer:

E

Step-by-step explanation:

so you put the square root of 10 and then it will give you a decimal

8 0
4 years ago
Read 2 more answers
Mike and Krista rent a jet ski while on vacation. The rental cost is represented by the function c(h)=50+20h, where the number o
Step2247 [10]

Answer:

130

Step-by-step explanation:

Given the equation of the relation as c(h) =50 +20 h where c(h) is the total cost for h hours and h is the number of hours of use, then to find the cost of jet ski if 4 hours were used will be;

c(h)=50 +20 h

c(4)=50 +20*4

c(4)=50 +80

=130

5 0
3 years ago
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