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3 years ago

If a number a is chosen at random from the set

Mathematics

1 answer:

Paraphin [41]3 years ago

7 0

Answer:

D. 3/19

Step-by-step explanation:

12/1 = 12

12/2 = 6

12/3 = 4

These are the only ones that make the equation true.

There are also only 19 numbers because they need to be less than 20 like the question indicated. Therefore, the answer is D.

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Question 5 of 10

True [87]

Answer:

The median value of the houses is $169,000

Step-by-step explanation:

Since the houses were undervalued by $15,000, add $15,000 to all amounts

154,000 + 15,000 = 169,000

133,000 + 15,000 = 148,000

167,000 + 15,000 = 182,000

145,000 + 15,000 = 160,000

180,000 + 15,000 = 195,000

172,000 + 15,000 = 187,000

149,000 + 15,000 = 164,000

To take the median of the data set, order the numbers from least to greatest

148,000 160,000 164,000 169,000 182,000 187,000 195,000

Eliminate one number from both sides until you reach one number

The number is 169,000

4 0

3 years ago

Read 2 more answers

Need help with a simple problem 2^x=3^x+1

KiRa [710]

For $x\ \textgreater \ 0$ , $2^x\ \textless \ 3^x$ , all the more $2^x\ \textless \ 3^x+1$ , therefore no solution.

For $x=0$ , we have $2^0=3^0+1 \Rightarrow 1=1+1 \Rightarrow 1=2$ . Obviously that' false.

For $x\ \textless \ 0$ both $2^x$ and $3^x$ , where $2^x\ \textgreater \ 3^x$ , belong to the range $(0,1)$ , then $3^x+1$ belong to the range $(1,2)$ .
Those ranges don't have a common part, therefore, again, no solution.

So, the equation $2^x=3^x+1$ doesn't have a solution.

4 0

3 years ago

Factor y 2 + 5y + 6. (y + 1)(y + 6) (y + 2)(y + 3) (y + 2)(y + 4)

serg [7]

y^2 + 5y + 6
=(y + 2)(y + 3)

----------------------------------

5 0

3 years ago

Read 2 more answers

What is the leading coefficient of the function f(x)= 3x^5+6x^4-x-3

Natali5045456 [20]

3. The leading coefficient of the function f(x)= 3x⁵+6x⁴-x-3 is 3.

For the function f(x)= 3x⁵+6x⁴-x-3 , the highest power of x is 5, so the degree is 5. The leading term is the term containing that degree, 3x⁵. The leading coefficient is the coefficient of that term, 3.

4 0

3 years ago

0.7 (3s + 4)-1.1s = 7.9

vichka [17]

Answer:

s = 5.1

Step-by-step explanation:

$0.7 (3s + 4)-1.1s = 7.9\\$