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Lera25 [3.4K]
2 years ago
5

Confused!! The picture below shows the question.

Mathematics
1 answer:
alukav5142 [94]2 years ago
5 0

Answer:

25

Step-by-step explanation:

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Determine the number of solutions <br>4x+y=-2<br>-20x-5y=-3​
hammer [34]

Answer:

No solution

Step-by-step explanation:

4x + y = -2

-20x - 5y = -3

<u><em>Using the Elimination method </em></u>

(4x + y = -2 ) 5

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No Solution

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Which equation can be solved to find x, the measure of BD in the diagram below?
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The rule for the angle formed outside of circle by intersection show below is given by:
Angle formed outside=1/2(difference of intercepted arcs)
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3 years ago
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N Squared - N = 90<br> N =?
mariarad [96]
N^2 - n = 90
n^2 - n - 90 = 0
(n - 10)(n + 9) = 0

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3 0
2 years ago
A cell phone plan charges $45.50 a month, plus $0.05 per text message. Write and graph an expression to find how many text messa
scoundrel [369]

Answer:

289 messages

equation: y=0.05x+45.5

graph: attached below

Step-by-step explanation:

We can write this in slope-intercept form, or y=mx+b. Since x is defined as the #of text messages, and 0.05 is the cost of a text message, 0.05 will be m. 45.5 is the base price, or the y-intercept, so it will be b.

Plugging in these numbers, we get y-0.05x+45.5

now we make y = 60, since that is the total amount they have

60=0.05x+45.5\\14.5=0.05x\\x=290

So, they can send 290 messages for 60, but they need the bill under 60, so 1 text message less will be 289, and that's enough.

4 0
2 years ago
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