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Hitman42 [59]
3 years ago
11

7. Tell whether the sequence is arithmetic. If it is, identify the common difference. (I point)

Mathematics
1 answer:
ahrayia [7]3 years ago
4 0

Answer:

Arithmetic, common difference is -11

Step-by-step explanation:

19, 8, -3, -14

common difference = d = 8 - 19 = -11

-3 - 8 = -11

-14 - (-3) = -11

Arithmetic, common difference is -11

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A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as ed
crimeas [40]
23245 + 21.50b = 46389 + 10.50b
21.50b - 10.50b = 46389 - 23245
11b = 23144
b = 23144/11
b = 2104 <== the cost will be the same at 2104 books
7 0
3 years ago
Describe and correct the error in determining which type of function the table represents.
topjm [15]

Answer:

<em>"Consecutive y-values change by multiplying previous value by a constant amount. So, the table represents an exponential function."</em>

Step-by-step explanation:

In reality, the table represents an exponential function instead of a linear function, since values on domain change arithmetically at constant rate, whereas values on range change geometrically at constant rate.

Correct phrase may be:<em> "Consecutive y-values change by multiplying previous value by a constant amount. So, the table represents an exponential function."</em>

5 0
3 years ago
Josh studied for his
grin007 [14]

he studied for 495 minutes. 165 minutes a day.

4 0
3 years ago
Read 2 more answers
8 x - 6 y equals -20 - 16 x + 7 y equals 30
Virty [35]

Answer:

-12.75 , -22

Step-by-step explanation:

8x - 6y = 30

8x = 30 + 6y

-20 - 16x + 7y = 30

-2(30 + 6y) + 7y = 50

-5y = 50+60

y = -22

7x = 30 - 6(22) = -102

x = -12.75

5 0
3 years ago
Read 2 more answers
A city is holding a referendum on increasing property taxes to pay for a new high school. In a survey of 458 likely voters, 254
Phantasy [73]

Answer:

\hat p \pm Z*\sqrt{\frac{\hat p\times(1-\hat p)}{n} }

=0.5546\pm1.96*\sqrt{\frac{0.5546\times(1-0.5546)}{458} }

=0.5546\pm1.96*\sqrt{\frac{0.5546\times(0.4454)}{458} }

=0.5546\pm1.96*\sqrt{\frac{0.2470}{458} }

=0.5546\pm1.96*\sqrt{0.00053934}

=(0.5091,0.6001)

Lower limit for confidence interval=0.5091

             

Upper limit for confidence interval=0.6001

Step-by-step explanation:

We have given,              

             

x=254          

n=458          

Estimate for sample proportion= \bar p = 0.5546

Level of significance is =1-0.95=0.05      

Z critical value(using Z table)=1.96      

Confidence interval formula is

\hat p \pm Z*\sqrt{\frac{\hat p\times(1-\hat p)}{n} }

=0.5546\pm1.96*\sqrt{\frac{0.5546\times(1-0.5546)}{458} }

=0.5546\pm1.96*\sqrt{\frac{0.5546\times(0.4454)}{458} }

=0.5546\pm1.96*\sqrt{\frac{0.2470}{458} }

=0.5546\pm1.96*\sqrt{0.00053934}

=(0.5091,0.6001)

Lower limit for confidence interval=0.5091

             

Upper limit for confidence interval=0.6001

8 0
3 years ago
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