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yarga [219]
3 years ago
15

Which expression is equivalent to r9•r3

Mathematics
1 answer:
evablogger [386]3 years ago
6 0

Answer:

An equivalent expression to this equation is r¹²

Step-by-step explanation:

When multiplying exponents, you add the exponential numbers together. So, you would add 9 and 3 together.

r⁹ × r³ = r¹²

So, an expression that is equivalent to the equation is <em>r¹²</em>

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Do a and b have the same value in the equations 2(a-1.1)=5.8 and 5/2b-2 3/4=7 1/4
luda_lava [24]

Answer:

  • Yes

Step-by-step explanation:

Solve each equation and compare the solutions

1.

  • 2(a - 1.1) = 5.8
  • a - 1.1 = 5.8/2
  • a - 1.1 = 2.9
  • a = 2.9 + 1.1
  • a = 4

2.

  • (5/2)b - 2 3/4 = 7 1/4
  • 2.5b = 7 1/4 + 2 3/4
  • 2.5b = 10
  • b = 10/2.5
  • b = 4

Both a and b have same value

6 0
2 years ago
OK you look like your going through a tuff time, the cold harden truth is that you have no choice but to live with it. Listen cl
ra1l [238]

Answer:

ok

Step-by-step explanation:

7 0
2 years ago
Round 75391 to the nearest ten
cluponka [151]
75390
7 is in the ten thousand place
5 is in the thousand place
3 is in the hundreds place
9 is in the tens place
1 is in the ones place
8 0
3 years ago
Read 2 more answers
Thaddeus shakes his head as he pays $12.37 to the clerk for lunch. Complaining to a friend, Thaddeus says, “Do you realize that
atroni [7]

a)

his income must be "x" which is the 100%, and we would know that 0.2% of that is 12.37.

\begin{array}{ccll} amount&\%\\ \cline{1-2} x&100\\ 12.37&0.2 \end{array}\implies \cfrac{x}{12.37}=\cfrac{100}{0.2}\implies 0.2x=1237 \\\\\\ x=\cfrac{1237}{0.2}\implies x=61.85

b)

his income must be "x" which is the 100%, and we would know that 2% of that is 12.37.

\begin{array}{ccll} amount&\%\\ \cline{1-2} x&100\\ 12.37&2 \end{array}\implies \cfrac{x}{12.37}=\cfrac{100}{2}\implies 2x=1237 \\\\\\ x=\cfrac{1237}{2}\implies x=618.5

btw he's not making much either way.

7 0
2 years ago
How would I turn 0.46 into a fraction
Pepsi [2]
<span>Step 1: 0.46 = 46⁄100</span> 
<span>Step 2: Simplify 46⁄100 = 23⁄50</span><span>  hope this helped u</span>
6 0
3 years ago
Read 2 more answers
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