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Mariulka [41]
3 years ago
14

Scotts has a jar of quarters and dimes if there is $4.15 in the jar and there is 4 dimes how many quarters are in the jar

Mathematics
1 answer:
ch4aika [34]3 years ago
3 0
4 dimes is $.40

$4.15 - $.40 = $3.75

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PLEASE HELP!!!!<br>how to solve 9x^3-16x^2=0 by factoring<br> WILL GIVE BRAINLIEST IF CORRECT!!!!
andreev551 [17]

Answer:

x=5.3

Step-by-step explanation:

Graph each side of the equation. The solution is the x-value of the point of intersection.

x

≈

5.3

Hope this helps, can you now give me brainliest??

7 0
3 years ago
A driver drives to school along the same routine Monday through Friday. There is one traffic light on her route . The probabilit
andrey2020 [161]

Answer:

0.525%

Step-by-step explanation:

Since we are trying to find the probability of a sequence of events we simply need to multiply the probability of each of these events happening separately from one another. We are told that the probability that the light will be red is 65% that means that the probability that it will be green and that the driver will not need to stop is 35%. This probability remains the same every day of the week. Therefore we need to multiply this probability 5 times, one time for each weekday Monday through Friday, but first we need to turn this percentage into a decimal form by dividing it by 100...

35% / 100 = 0.35

0.35 * 0.35 * 0.35 * 0.35 * 0.35 = 0.00525 ...multiply by 100 to get percentage

0.00525 * 100 = 0.525%

Finally, we can see that the probability that she will not have to stop at the light all next week is 0.525%

8 0
3 years ago
Solve by the method of elimination by using multiplication. x-y=15 4x+2y=30
Studentka2010 [4]
The solution is y= -5 and x=10

7 0
4 years ago
Plźzzz help me ... I'll give brainliest
fgiga [73]

Answer:

\displaystyle x = \frac{1}{3}.

Step-by-step explanation:

Consider the double angle identity for tangents:

\displaystyle \tan(2\theta) = \frac{2\tan{\theta}}{1 - \tan^{2}{\theta}}.

Also, for two complementary angles,

\displaystyle \tan{\left(\frac{\pi}{2} - \theta \right)} = \frac{1}{\tan{\theta}}.

Subtract \tan^{-1}(x + 1) from both sides of this equation:

\displaystyle 2\tan^{-1}{x} = \frac{\pi}{2} + (-\tan^{-1}(x + 1)).

Take the tangent of both sides of this equation:

\displaystyle \tan(2\tan^{-1}{x}) = \tan\left(\frac{\pi}{2} -\tan^{-1}\left(x + 1\right)\right).

Apply the double-angle identity to the left-hand side of this equation:

\displaystyle \tan(2\tan^{-1}{x}) \implies \frac{2\tan(\tan^{-1}x)}{1 - \tan^{2}(\tan^{-1}x)}\implies \frac{2x}{1 - x^{2}}.

The two angles \displaystyle \left(\frac{\pi}{2} + (-\tan^{-1}\left(x + 1\right))\right) and (x - 1) are complementary. Therefore, for the right-hand side of this equation,

\displaystyle \tan\left(\frac{\pi}{2} -\tan^{-1}\left(x + 1\right)\right)\implies \frac{1}{\tan(\tan^{-1}(x + 1))} \implies \frac{1}{x + 1}.

Equate the two sides of this equation:

\begin{aligned} & \frac{2x}{1 - x^{2}} = \frac{1}{x + 1}\\ \implies & \frac{2x}{(1 - x)(1 + x)} = \frac{1}{1 + x}\\\implies & 2x = 1 - x,\; x \ne 1,\; x \ne -1\\\implies & x = \frac{1}{3}\end{aligned}.

5 0
3 years ago
Can someone explain please.
lorasvet [3.4K]
I believe the answer is 31.1 since, it’s a square it’s equal on all sides, so you used the Pythagorean theorem to final the missing diagonal side, so 22^2 plus 22^2 = c^2
That would give you 968 =c^2, square both sides, you’ll get 31.1
4 0
3 years ago
Read 2 more answers
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