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2 years ago

Which function corresponds to the table? Bro i need help ngl please help me

Mathematics

2 answers:

IRINA_888 [86]2 years ago

8 0

Answer:

C. y=-2X+3

Step-by-step explanation:

34kurt2 years ago

3 0

It would be B:) I hope that helped

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The mean preparation fee H&R Block charged retail customers in 2012 was $183 (The Wall Street Journal, March 7, 2012). Use t

astraxan [27]

Answer:

a)0.6192

b)0.7422

c)0.8904

d)at least 151 sample is needed for 95% probability that sample mean falls within 8$ of the population mean.

Step-by-step explanation:

Let z(p) be the z-statistic of the probability that the mean price for a sample is within the margin of error. Then

z(p)= $\frac{ME*\sqrt{N}}{s }$ where

Me is the margin of error from the mean

s is the standard deviation of the population

N is the sample size

z(p)= $\frac{8*\sqrt{30}}{50 }$ ≈ 0.8764

by looking z-table corresponding p value is 1-0.3808=0.6192

z(p)= $\frac{8*\sqrt{50}}{50 }$ ≈ 1.1314

by looking z-table corresponding p value is 1-0.2578=0.7422

z(p)= $\frac{8*\sqrt{100}}{50 }$ ≈ 1.6

by looking z-table corresponding p value is 1-0.1096=0.8904

Minimum required sample size for 0.95 probability is

N≥ $(\frac{z*s}{ME} )^2$ where

N is the sample size

z is the corresponding z-score in 95% probability (1.96)

s is the standard deviation (50)

ME is the margin of error (8)

then N≥ $(\frac{1.96*50}{8} )^2$ ≈150.6

Thus at least 151 sample is needed for 95% probability that sample mean falls within 8$ of the population mean.

7 0

3 years ago

Marshall is buying snacks for a party. He spent$4727 on the snacks. If the sales tax rate is 6%, what was Marshall’s total bill?

riadik2000 [5.3K]

Her total bill was $18.09

7 0

2 years ago

Read 2 more answers

Can anyone help me please

frez [133]

Would it be 3.4, 4.3, 5.2, 6.1, 7

6 0

2 years ago

HELP for (ii)…..how do we find a?

Mariana [72]

By using the information given on the graph, we can see that a = 3.

<h3>How to find the value of a?</h3>

Here we have an exponential of the form:

$y = p*a^x$

And by looking at the graph, it passes through (0, 4) and (2, 36), so we can write:

$4 = p*a^0\\\\36 = p*a^2$

From the first equation we get that p = 4, replacing that on the second one we get:

$36 = 4*a^2\\\\36/4 = 9 = a^2\\\\\sqrt{9} = 3 = a$

So we conclude that a = 3.

If you want to learn more about exponential equations:

brainly.com/question/11832081

#SPJ1

7 0

2 years ago

Solve each compound inequality (show your work!)

zimovet [89]

Answer: -1 < x < 8

x = 3

x ≠ 2

Step-by-step explanation:

Isolate x in the middle. Perform operations to all 3 sides.

-6 < 2x - 4 < 12

+4 +4 +4

-2 < 2x < 16

÷2 ÷2 ÷2

-1 < x < 8

**************************************************************************

Isolate x. Solve each inequality separately. Remember to flip the sign when dividing by a negative.

4x ≤ 12 and -7x ≤ 21

÷4 ÷4 ÷-7 ÷-7

x ≤ 3 and x ≥ 3

Since it is an "and" statement, x is the intersection of both inequalities.

When is x ≤ 3 and ≥ 3? when x = 3

****************************************************************************

Isolate x. Solve each inequality separately.

15x > 30 or 18x < -36

÷15 ÷15 ÷18 ÷18

x > 2 or x < 2

Since it is an "or" statement, x is the union of both inequalities.

When we combine the inequalities, x is every value except 2.

x ≠ 2

4 0

2 years ago