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cricket20 [7]
3 years ago
7

Find the equivalent expression 9(2a+1)

Mathematics
1 answer:
Sladkaya [172]3 years ago
7 0
18a+9 is the equivalent expression.
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The cable company charges $30 to install new supplies at your house. Each month the cable bill is $75. Which equation models the
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Equation: $30+$75m
M=per month
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3 years ago
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Suppose the population of a town was 40,000 on January 1, 2010 and was 50,000 on January 1, 2015. Let P(t) be the population of
Lorico [155]

Answer:

Given,

The initial population ( on 2010 ) = 40,000,

Let r be the rate of increasing population per year,

Thus, the function that shows the population after t years,

P(x)=40000(1+r)^t

And, the population after 5 years ( on 2015 ) is,

P(5)=40000(1+r)^{5}

According to the question,

P(5) = 50,000,

\implies 40000(1+r)^5=50000

(1+r)^5=\frac{50000}{40000}=1.25

r + 1= 1.04563955259

\implies r = 0.04653955259\approx 0.04654

So, the population is increasing the with rate of 0.04654,

And, the population after t years would be,

P(t)=40000(1+0.04654)^t

\implies 40000(1.04654)^t

Since, the exponential function is,

f(x) = ab^x

Hence, by comparing,

a = 40000,

b = 1.04654

6 0
4 years ago
A random sample of 300 balls hit into play in college baseball games is taken. For each ball hit into play, it is recorded wheth
Soloha48 [4]

Answer:

(D) H_0H0​: The direction of the ball and whether it results in a hit or an out are independent.

Step-by-step explanation:

Given that

There is 300 balls random sample is taken

We need to find out the appropriate null hypothesis that lies between the ball direction and lead to a hit or an out

So

Based on the given options, the option d is correct as the ball direction and its results either be hit or on out would represent that they are independent

Therefore the option d is correct

3 0
3 years ago
What is the value of x in the equation 2x + 3y = 36, when y = 6? <br>08 <br>9 <br>27 <br>36​
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2x+3(6)=36
2x+18=36
subtract 18 both sides
2x=18
x=9
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3 years ago
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What is 7a +6c+9a-15c
jeka94

                               7a + 6c + 9a - 15c

-- Look for all the 'a's      7a,  9a

-- Addum up                    16a

-- Look for all the 'c's      6c,  -15c

-- Addum up                     -9c

-- Write the results         16a - 9c
3 0
4 years ago
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