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Stella [2.4K]
3 years ago
7

Simplify. 5 + 2(3x − 4) − x

Mathematics
1 answer:
VMariaS [17]3 years ago
8 0
5+2(3x-4)-x
5+6x-8-x
it is simplified to -3+5x
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Explain why:<br> 2⁴ = 16.
hjlf

Answer:

Well, 2 to the 4th power is just: 2 x 2 x 2 x 2 which when multiplied, you get 16.

Step-by-step explanation:

Say you multiply the first two 2's, you get 4, then you multiply the last two 2's,

You're left with 4x4 which is equal to 16.

6 0
3 years ago
If the length of the minute hand of the clock in London commonly known as “Big Ben” is 11.25’ from the center of the clock to th
rodikova [14]
First, we should figure out the area of the entire face of the clock because we need that information to solve the problem. The formula for the area of a circle is A=pi*r^2. Since we know that r (radius) is equal to 11.25 feet, we can plug this in for r and solve for A: A=pi*11.25^2 which equals A=397.61 ft^2 rounded to the nearest hundredth. 

Now, to find the area the hand sweeps over in 5 minutes, we should determine how much of the clock the hand sweeps over in 5 minutes. Think about it like this: since 5 minutes goes into 60 minutes 12 times (60/5=12), then 5 minutes is one twelfth of the clock's face. Therefore, we are going to divide the total area by 12 (397.61/12) to get 33.13 ft^2, so the answer is C.

I hope this helps.
5 0
4 years ago
Simutaneous equation by substitution:y+2x=0,4x+y=3..................solve for x and y
Lunna [17]
1y + 2x = 0 ⇒ -2x - 1y = 0
4x + 1y = 3 ⇒  <u>4x + 1y = 3</u>
                                <u>2x</u> = <u>3</u>
                                 2     2
                                  x = 1.5
                     4(1.5) + y = 3
                            6 + y = 3
                         <u>- 6        - 6</u>
                                  y = -3
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4 0
3 years ago
I’ll give brainly if you’re answer is right
MakcuM [25]

Answer:

look at the picture i have sent

3 0
3 years ago
Read 2 more answers
If x = −4 is a zero of the polynomial function f(x) = 2x3 + 13x2 + 23x + 12, which of the following is another zero of f(x)?  x
Talja [164]

Answer:

x= -1 is the another zero of the given function.  

Step-by-step explanation:

We have been given a function:

f(x)=2x^3+13x^2+23x+12

The zero of the function is that point where the function vanishes or the value of the function becomes zero.

From the given four values we will put the values in the function and wherever we get zero is the zero of the function.

put x= -1 we get:

f(-1)=2(-1)^3+13(-1)^2+23(-1)+12

f(-1)=-2+13-23+12=0

Hence, x= -1 is the another zero of the given function.  

5 0
3 years ago
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