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2 years ago

10

Which equation represents the graph below? A. y=3x-2 B.y=-2x+3 C.y=3x-2 D.2x+3

1 answer:

KatRina [158]2 years ago

5 0

Answer:

d

Step-by-step explanation:

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Find the missing side.

vitfil [10]

Answer:

$x = 41.5$

Step-by-step explanation:

The solution is in the image

7 0

1 year ago

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

2 years ago

Name the next two numbers in the series: 128, 64, 16...

7nadin3 [17]

First one was divided by 2 second was divided by 4 so now you do 16/8 which gives you two then you do 2/16 which is 1/8 so the next two answers are 2 and 1/8

5 0

2 years ago

The length and breadth of a rectangular ground is 30 m and 20 m respectively.A boy moves around the ground 5 times early morning

nasty-shy [4]

Answer:

500m

Step-by-step explanation:

a rectangle has 4 sides, so 30=60 and 20=40

60x5=300

40x5=200

300+200=500

500m

reason of 500

The main reason for this is he ran AROUND the rectangle and did it 5 TIMES, doing it once would be 100m.

3 0

2 years ago

How many pence have the same value as £2.04

Naddik [55]

The answer is 204

Explanation: 100x2+4 = 204pence

7 0

3 years ago

Read 2 more answers