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ValentinkaMS [17]
3 years ago
6

I NEED HELP! simplify this expression

Mathematics
1 answer:
ioda3 years ago
7 0

Answer:

25

Step-by-step explanation:

36-1*16+5 (PEMDAS, exponents first)

36-16+5 (PEMDAS, multiplication)

20+5 (PEMDAS, add and subtract left to right)

25 (PEMDAS, add and subtract left to right)

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The midpoint of . is the point M, where AM = 5x + 4 and MB = 3+16 . Find the length of . AB
kirill115 [55]

Answer:

<h2>AB = 38</h2><h2 />

Step-by-step explanation:

|<----------------- AB ------------------->|

A--------------------M--------------------B

     5x + 4                      3+16

since M is at midpoint, AM = MB

5x + 4 = 3 + 16

5x = 3 + 16 - 4

x = 15 / 5

x = 3

AB = AM + MB

AB = 5(3) + 4 + 3 + 16

AB = 15 + 23

AB = 38

5 0
3 years ago
Can someone answer this question please?
Anna007 [38]

Answer:

For more than 35 miles company A will charge less than company B

Step-by-step explanation:

Let us write the equation of the cost of each company

Company A:

∵ Company A charges $96 for unlimited mileage

∴ The cost of company A = 96

Company B:

∵ Company B charges an initial fee of $75

∵ It charges $0.6 for every mile driven

∵ The number of miles is m

- Multiply m by 0.6 and add 75 to the product

∴ The cost of company B = 75 + 0.6 m

∵ Company A will charge less than company b

∴ 96 < 75 + 0.6 m

- Subtract 75 from both sides

∴ 21 < 0.6 m

- Divide both sides by 0.6

∴ 35 < m

- That means m is greater than 35

∴ m > 35

For more than 35 miles company A will charge less than company B

7 0
3 years ago
I need to know the solution to this
Alex73 [517]
There are two ways to do this but the way I prefer is to make one of the equations in terms of one variable and then 'plug this in' to the second equation. I will demonstrate

Look at equation 1, -2x+y=10 this can quite easily be manipulated to show y=10+2x.

Then because there is a y in the second equation (and both equations are simultaneous) we can 'plug in' our new equation where y is in the second one 4x-y=-14 \Rightarrow 4x-(10+2x)=-14 which can then be solved for x since there is only one variable 4x-10-2x=-14 \Rightarrow 2x=-4 \Rightarrow x=-2 and then with our x solution we can work out our y solution by using the equation we manipulated y=10+2x = 10+(2 \times -2) = 10-4=6.

So the solution to these equations is x=-2 when y=6
8 0
3 years ago
For each linear operator T on V find the eigenvalues of T and an ordered basis such that [T]_B is a diagonal matrix
-Dominant- [34]

Answer:

It seems like this question is not clear enough but it probably is like the one in the pictures.  :)

Step-by-step explanation:

Look at the pictures.

6 0
3 years ago
Edward is collecting data on the average length of lizards from head to tail for a particular generation. Initially, the average
Zina [86]

Answer:

The general form of a natural logarithmic function is <em>f(x)=a In(x-h) +k.</em> Since the initial average length of the lizards was 20 centimeters, one possible point (h+1,k) through which the function passes is (0,20).

In this case, h= -1 since h +1 = 0 and k = 20.

It follows that x - h = (-1) = x + 1.

So, the function takes the form <em>f(x) = a In(x + 1) +20. </em>

The average length of the lizards after 2 years is 22.197. So f(2) =22.197. We substitute this value into the function

Step-by-step explanation:

<em>f(2) = a In(2 +1) +20 </em>

<em>22.197 = a In(3) + 20 </em>

<em></em>\frac{2.197}{1.099}<em>≈ a </em>

<em>2 ≈ a</em>

So the function that represents the average length of the lizards across this generation is <em>f(x) = 2 In(x+1) +20 </em>

3 0
3 years ago
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