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chubhunter [2.5K]
2 years ago
14

Which expression is the exponential form of √9y?

Mathematics
1 answer:
Alenkinab [10]2 years ago
5 0

Answer:

a) (9y)^1/2

Step-by-step explanation:

√9y  = (9y) ^ 1/2

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One canned juice drink is 25% orange juice; another is 10% orange juice. How many liters of each should be mixed together in ord
Vikki [24]
Let's say we use "x" of the 25% OJ... ok... well, how much juice is really in that "x" liters?  well, 25% of it is OJ, the rest is water, how much is 25% of x? well, (25/100) * x,  or 0.25x.

likewise, we'll use "y" of the 10% OJ, and it will end up with (10/100) *y or 0.10y of juice in it.

whatever "x" and "y" are, they must add up to 15 Liters, and the juice concentration on that mixture, must also be the sum of their sum concentration.

\bf \begin{array}{lccclll}
&\stackrel{liters}{amount}&\stackrel{juice~\%}{quantity}&\stackrel{juice}{quantity}\\
&------&------&------\\
\textit{25\% juice}&x&0.25&0.25x\\
\textit{10\% juice}&y&0.10&0.10y\\
------&------&------&------\\
mixture&15&0.17&2.55
\end{array}
\\\\\\
\begin{cases}
x+y=15\implies \boxed{y}=15-x\\
0.25x+0.10y=2.55\\
----------\\
0.25x+0.10\left(\boxed{15-x}  \right)=2.55
\end{cases}
\\\\\\
0.25x-0.10x+1.5=2.55\implies 0.15x=1.05\implies x=\cfrac{1.05}{0.15}
\\\\\\
x=7

how much will be it of the 10% juice?  well, y = 15 - x.
6 0
2 years ago
4x2 + 2x = 12<br> What's the answer Nd solve it
baherus [9]

Answer:

=3/2

=−2

2Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Help please? Thank you!
adoni [48]

Answer:

The first answer should be the 3rd one.

The second answer should be the first one.

Step-by-step explanation:

4 0
3 years ago
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Which of the following shows the graph of y = l n (negative 2 x)
Doss [256]

Answer:

The first graph, answer choice A.

Step-by-step explanation:

4 0
2 years ago
Find the measures of an interior angle and an exterior angle of a regular 16-gon
Anastasy [175]

Answer:

2520°

Step-by-step explanation:

The sum of the angles in any triangle is 180°

shape. sides. triangles. sum int angles.

triangle. 180×1=180°

quad. 180×2=360°

pentagon. 180×3=540°

n-sides. n( n−2) 180(n−2)

16-sides. 180×14=2520°

7 0
3 years ago
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