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3 years ago

NEED HELP ASAPPPPPPP

Mathematics

1 answer:

kobusy [5.1K]3 years ago

5 0

$\boxed{y=2^x-1}$

$for\ x=0\to y=2^0-1=1-1=0\to(0;\ 0)$
other
It's the graph of the function $y=2^x$ shifted 1 unit down $y=2^x-1$
Look at the picture.

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The probability of an event is 3/10 . What are the odds of the same event?

kozerog [31]

Answer:

D. $\frac{3}{7}$

Step-by-step explanation:

We have been given that the probability of an event is 3/10.

To find the odds of the same event we will use formula:

$\text{Odds of an event}=\frac{\text{Probability of the event}}{\text{1-Probability of the event}}$

$\text{Odds of the event}=\frac{\frac{3}{10}}{1-\frac{3}{10}}$

$\text{Odds of the event}=\frac{\frac{3}{10}}{\frac{1*10}{10}-\frac{3}{10}}$

$\text{Odds of the event}=\frac{\frac{3}{10}}{\frac{10-3}{10}}$

$\text{Odds of the event}=\frac{\frac{3}{10}}{\frac{7}{10}}$

Dividing a fraction with another fraction is same as multiplying the 1st fraction by the reciprocal of second fraction.

$\text{Odds of the event}=\frac{3}{10}\times \frac{10}{7}$

$\text{Odds of the event}=\frac{3}{7}$

Therefore, the odds of the same event is $\frac{3}{7}$ and option D is the correct choice.

8 0

3 years ago

Kala takes classes at both Westside Community College and Pinewood Community College. At Westside, class fees are $98 per credit

masya89 [10]

Answer:

T=98W-115W+1840

Step-by-step explanation:

$98 per credit at Westside (W)

$115 per credit at Pinewood (P)

Expression 1 : 98W+115P=T

Expression 2 : W+P=16

Combined: if W=16-P

Total=98W+115(16-W)

T=98W-115W+1840

3 0

1 year ago

Help please I’m so confused!

nadezda [96]

(-1,-3) i will got for C.

3 0

3 years ago

Read 2 more answers

The volume of a rectangular box is 330 cubic inches. The length on one side of the top is 11 inches, and the height of the box i

Kipish [7]

Answer:

width = 10 inches

Step-by-step explanation:

V = lwh

w = $\frac{V}{lh}$ = $\frac{330in^{3} }{11in(3in)}$ = $\frac{330}{33}$ = 10 inches

7 0

2 years ago

The ratio table shows the costs for different amounts of bird seed. Find the unit rate in dollars per pound.

Maru [420]

Answer:

2.3 dollars

Step-by-step explanation:

Given:

Ratio table that shows the costs for different amounts of bird seed

To find: the unit rate in dollars per pound

Solution:

Amount (pounds) 5 10 15 20

Cost (dollars) 11.5 23 34.50 46

Here,

$\frac{5}{11.5}=\frac{50}{115}=\frac{10}{23}\\\\\frac{10}{23}=\frac{10}{23}\\\\\frac{15}{34.50}=\frac{1500}{3450}=\frac{150}{345}=\frac{30}{69}=\frac{10}{23}\\\\\frac{20}{46}=\frac{10}{23}$

Therefore,

$\frac{5}{11.5}=\frac{10}{23}=\frac{15}{34.50}=\frac{20}{46}$

Cost of 10 pounds = 23 dollars

So, cost of 1 pound = $\frac{23}{10}=2.3$ dollars

6 0

3 years ago