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klasskru [66]
3 years ago
11

Select all the points that are on the graph of the function defined by y = 2x + 3

Mathematics
2 answers:
ale4655 [162]3 years ago
4 0

Answer:

b, d, e, g are the points

Kaylis [27]3 years ago
3 0
All you need to do to solve this is plug in x and y values.

a) -8 + 3 = -5, not 3
b) -2 + 3 = 1
c) 0 + 3 = 3, not 0
d) 4 + 3 = 7
e) 6 + 3 = 9
f) 6 + 3 = 9, not 12
g) 9 + 3 = 12

The correct answers are B, D, E, G
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Find the solution set
Marianna [84]
Hi!

Whatever we do to the inequality, we have to do it to both sides.

Subtract 14 from both sides
14 - 14 - 3x < -1 - 14
-3x < -15
Divide by -3 on both sides
-3x/-3 < -15/-3
x < 5
Because we divided by a negative number, the equality sign flips.
x > 5
^ the answer

Hope this helps! :)
4 0
3 years ago
An electric current, I, in amps, is given by I=cos(wt)+√8sin(wt), where w≠0 is a constant. What are the maximum and minimum valu
exis [7]
Take the derivative with respect to t
- w \sin(wt) + \sqrt{8} w cos(wt)
the maximum and minimum values occur when the tangent line is zero so we set the derivative to zero
0 = -w \sin(wt) + \sqrt{8} w cos(wt)
divide by w
0 =- \sin(wt) + \sqrt{8} cos(wt)
we add sin(wt) to both sides

\sin(wt)= \sqrt{8} cos(wt)
divide both sides by cos(wt)
\frac{sin(wt)}{cos(wt)}= \sqrt{8}   \\  \\ arctan(tan(wt))=arctan( \sqrt{8} ) \\  \\ wt=arctan(2 \sqrt{2)} OR\\ wt=arctan( { \frac{1}{ \sqrt{2} } )
(wt)=2(n*pi-arctan(2^0.5))
(wt)=2(n*pi+arctan(2^-0.5))
where n is an integer
the absolute max and min will be

I=cos(2n \pi -2arctan( \sqrt{2} ))
since 2npi is just the period of cos
cos(2arctan( \sqrt{2} ))= \frac{-1}{3} &#10;
substituting our second soultion we get
I=cos(2n \pi +2arctan( \frac{1}{ \sqrt{2} } ))
since 2npi is the period
I=cos(2arctan( \frac{1}{ \sqrt{2}} ))= \frac{1}{3}
so the maximum value =\frac{1}{3}
minimum value =- \frac{1}{3}


4 0
3 years ago
Find the area of the figure
faust18 [17]
Hshsdusisidjdjfjejdixhdbsisoxnd she
6 0
3 years ago
What is the value of y if log &lt;base 5&gt; &lt;index -7&gt; = y?​
Dvinal [7]

Answer:

Hence, the value of y is undefined.

Step-by-step explanation

log_{5} (-7) = \frac{log(-7)}{log(5)} from the property, log_a (b) = (log(a))/log(b).

The value log (-7) was not defined. So, the entire log value also not defined.

Hence, the value of y is undefined.

6 0
2 years ago
What is the area of the shaded triangle?
weeeeeb [17]
The area is 30 m!


A= 30m
6 0
3 years ago
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