Answer:
The remaining credit after 45 minutes of calls is $18.70
Step-by-step explanation:
Here, we have a linear model to work with
Let us have the coordinates as follows;
(time calling time, credit remaining)
So we have two points as follows;
(24,21.64) and (35,20.10)
The slope will be;
(20.1-21.64)/(35-24) = -1.54/11 = -0.14
So the equation looks like;
y = -0.14x + c
To get the y-intercept, we simply substitute a point
Let us use (35,20.10)
20.10 = -0.14(35) + c
c = 20.10 + 4.9
c = 25
So the full equation is;
y = -0.14x + 25
So for 45 minutes, simply substitute 45 for x
We have this as:
y = -0.14(45) + 25
y = -6.3 + 25 = $18.70
Answer: 50% chance because its more.
Step-by-step explanation:
Why not either go all or nothing.
Answer:
As Given △QRS is rotated about point P to △Q′R′S′ .
As we know after rotation by any angle of pre-image neither the shape nor size of the image changes, the image after rotation is congruent to pre image.
Out of the options given
→The corresponding lengths, from the point of rotation, between the pre-image and the image are preserved.
→The corresponding angle measurements in each triangle between the pre-image and the image are preserved.
are true.
So I am going to assume this is a logic problem.
15(2.718282
) + 7 = 10
Subtract 7 from both sides.
15(2.718282
) = 3
Divide both sides by 15.
2.718282
=
Now you solve for the exponent.
<span>(Take log of both sides)
</span>
<span><span>(<span><span>−<span>3x</span></span>+1</span>)</span>*<span>(<span>log<span>(2.718282)</span></span>)</span></span>=<span>log(1/5)
</span>
<span><span>−<span>3x</span></span>+1 = </span>
<span><span>−<span>3x</span></span>+1</span>=<span>−<span>1.609438
</span></span>
<span><span><span><span>−<span>3x</span></span>+1</span>−1</span>=<span><span>−1.609438</span>−1</span></span><span>(Subtract 1 from both sides)
</span>
<span>−<span>3x</span></span>=<span>−<span>2.609438 (divide 3 on both sides)
</span></span>
Answer:
x = <span>
0.869813
</span>
or...
Rounded Answer:
0.87