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Strike441 [17]
3 years ago
9

Two lines, C and D, are represented by the following equations: Line C: y = x + 5 Line D: y = −2x − 1 Which of the following opt

ions shows the solution to the system of equations and explains why? (4 points) Group of answer choices (−2, 3), because one of the lines passes through this point (−2, 3), because the point does not lie on any axis (−2, 3), because both lines pass through this point (−2, 3), because the point lies between the two axes
Mathematics
1 answer:
klio [65]3 years ago
5 0

Answer:

(−2, 3), because both lines pass through this point

Step-by-step explanation:

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Hello everyone.
lina2011 [118]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
Help me with this question if you don’t mind
vampirchik [111]

Answer:

D

Step-by-step explanation:

if AB is congruent to AC that means both are 76 degrees so subtract that from the total degrees of a whole triangle which is 180 that gives you A which is 28.

Hope it helps :)

5 0
3 years ago
Two integers, a and b, have a product of 36. What is the least possible sum of a and b?
Minchanka [31]
<h3>Answer:  12</h3>

==============================================================

Explanation:

The two integers multiply to 36, so,

ab = 36

which solves to

a = 36/b

Then we want to add the numbers such that we get the smallest possible result.

a+b = (36/b)+b

So we want (36/b)+b to be as small as possible.

Let's say we replace b with x and we consider this function

f(x) = (36/x) + x

The goal is to find when f(x) is smallest, ie, we want to minimize the function.

If we were to graph out the function, we get the curve shown below.

To make things easier, we'll only focus on positive values of x.

The lowest part of the curve is what we're after. Using the "minimum" function/feature on the graphing calculator, we would then find the lowest point occurs at (6,12). This point is considered a local minimum because it's the lowest point in that given neighborhood of x values.

So the input x = 6 leads to the smallest output f(x) = 12.

This in turn means b = 6 is going to pair with a = 36/b = 36/6 = 6.

In short, a = 6 and b = 6.

----------------------

As a check,

a*b = 6*6 = 36

a+b = 6+6 = 12

We can make a table of various values to help confirm that 12 is the smallest sum.

Side note: If you're not allowed to use a graphing calculator, then you'll need to use calculus.

8 0
3 years ago
How to do .please teache me step by step
Klio2033 [76]
T has 4 times what R has, so 2.105*4 which is 8.42
8 0
3 years ago
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