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Amanda [17]
2 years ago
8

23. Explain the Error Student A and student B were given the following graph and asked to find the value of f(x) when x= 1. Stud

ent A gave an answer of 0 while student B gave an answer of -2. Who is incorrect? Explain the error. ​

Mathematics
1 answer:
pentagon [3]2 years ago
5 0
The answer is Student A is correct because if you look at the graph CLOSElY, you can see the point (0,1) when f(x) is 1, the x value is 0. F(x) means another way to Y. So when it’s 1 on the Y AXIS, it is 0 on the X AXIS.
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Please help I will give brainiest
vovikov84 [41]

Answer:

4

Step-by-step explanation:

The constant of proportionality is what determines the relationship between y and x. If t is the constant of proportionality then an example is y = tx .

So 4 is the constant of proportionality

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2 years ago
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In a Gallup poll, 1025 randomly selected adults were surveyed and 29% of them said that they used the Internet for shopping at l
svetoff [14.1K]

Answer:   (0.25,0.33)

Step-by-step explanation:

A 99% confidence interval for population proportion is given by:-

\hat{p}\pm 2.576\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}, where \hat{p} = sample proportion, n = sample size.

Given: n=1025, \hat{p}=0.29

A 99% confidence interval estimate of the proportion of adults who use the Internet for shopping:

0.29\pm 2.576\sqrt{\dfrac{0.29(1-0.29)}{1025}}\\\\=0.29\pm 2.576\sqrt{0.00020087804878}\\\\=0.29\pm2.576(0.01417)\\\\=0.29\pm0.03650192\\\\=(0.29-0.03650192,\ 0.29+0.03650192)\\\\=(0.25349808,\ 0.32650192)

\approx(0.25,\ 0.33)

Thus, a 99% confidence interval estimate of the proportion of adults who use the Internet for shopping = (0.25,0.33)

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3 years ago
Sunita bought a 10Kg. box of grapes from the market. She gave
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4 1/4 kg grapes were left with her.
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Vladimir buys 1.20 pounds of Skittles, 312 pounds of M&Ms, and 5.2 pounds of pretzels. If the candy cost $1.20 a pound and t
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Answer: $10.90

Step-by-step explanation:

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6 0
3 years ago
Tyree and four friends go to the movies. Each person buys a movie ticket for $7, a snack for $5, and a drink for $2. Write an ex
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Answer:

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1=7

1=5

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Then you take each person (which there are five of then) and you times all five people by 7, 5, 2.

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After that you add it all together:

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Step-by-step explanation:

your welcome

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3 years ago
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