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AlekseyPX
3 years ago
7

Determine the value of X

Mathematics
1 answer:
Ulleksa [173]3 years ago
5 0

Answer:

We need some form of question other then Determine the value of X.... or equation

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Muke is sick with the flu but he still cors to school on monday. He areives at 8am and by 9am (hour 1) muke has already infected
Volgvan

Answer:

\begin{array}{ccccccccc}{Hours} & {0} & {1} & {2} & {3} & {4}& {5} & {6} & {7} \ \\ {Persons} & {1} & {2} & {4} & {8} & {16}& {32} & {64} & {128} \ \end{array}

Step-by-step explanation:

Given

See attachment for complete question

Solving (a): Complete the table

Let

x = hours

y = persons

From the table question, we have:

(x_1,y_1) = (0,1)

(x_2,y_2) = (1,2)

(x_3,y_3) = (2,4)

The pattern follows that, an increment in x by doubles the value of 1.

So, the other values are:

(x_4,y_4) = (3,8)

(x_5,y_5) = (4,16)

(x_6,y_6) = (5,32)

(x_7,y_7) = (6,64)

(x_8,y_8) = (7,128)

So, the complete table is:

\begin{array}{ccccccccc}{Hours} & {0} & {1} & {2} & {3} & {4}& {5} & {6} & {7} \ \\ {Persons} & {1} & {2} & {4} & {8} & {16}& {32} & {64} & {128} \ \end{array}

Solving (b): The graph

The table follows an exponential function:

y = ab^x

We have: (x_1,y_1) = (0,1)

This gives:

y = ab^x

1 = ab^0

b^0 \to 1

So:

1 = a*1

1 = a

a =1

Also: (x_5,y_5) = (4,16)

This gives:

y = ab^x

16 = 1 * b^4

16 = b^4

16 \to 2^4

So:

2^4 = b^4

Cancel the exponents (4)

2 =b

b = 2

So, the function y = ab^x is:

y = 2^x

<em>See attachment 2 for graph</em>

6 0
3 years ago
Evaluate the expression 4x for xequals2
4vir4ik [10]

Answer:ghgjfhgythgbvh

Step-by-step explanation:

7 0
3 years ago
If AB is 12, what is the length of A'B'?
lukranit [14]

Triangles ABC and A'B'C are similar. This means that the corresponding sides are in the same ratio, in this case:

\frac{BC}{B^{\prime}C}=\frac{AC}{A^{\prime}C}=\frac{AB}{A^{\prime}B^{\prime}}

Replacing with data:

\begin{gathered} \frac{9}{6}=\frac{12}{A^{\prime}B^{\prime}} \\ 9\cdot A^{\prime}B^{\prime}=12\cdot6 \\ A^{\prime}B^{\prime}=\frac{72}{9} \\ A^{\prime}B^{\prime}=8 \end{gathered}

7 0
1 year ago
It is important to re-evaluate financial goals periodically. In which of the following situations would it be necessary to chang
likoan [24]

Answer: A Edge

You fell sharply behind your expected schedule with regard to saving

Look your test

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the solution of-+-&lt;?<br> 1 1 1<br> X35
sergij07 [2.7K]

Answer:

A. -\frac{15}{2} < x< 0

Step-by-step explanation:

Multiply to remove the fraction, then set equal to  0  and solve.

3 0
3 years ago
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