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Andrew [12]
2 years ago
6

Help me plz I need help

Mathematics
1 answer:
galina1969 [7]2 years ago
8 0
Number 4 is D and number 5 is A
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I need help with 27 and 28 show step and round to nearest tenth
Nikitich [7]

Answer:

#27: 56 ft squared #28: 32.85 ft squared

Step-by-step explanation:

Hope this helped! Please rate it if this helped!

5 0
3 years ago
Mai bought a television for $330. The tax rate is 8%. How much did Mai pay for the television?
Bezzdna [24]
Mai paid $412.50 for the T.V.
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3 years ago
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A survey of 25 grocery stores revealed that the mean price of a gallon of milk was $2.98, with a standard error of $0.10. What i
Gnesinka [82]

Answer:

95% confidence interval: (2.784,3.176)

Step-by-step explanation:

We are given the following information in the question:

Sample size, n = 25

Sample mean = $2.98

Standard error = $0.10

Alpha = 0.05

95% confidence interval:

\mu \pm z_{critical}(\text{Standard error})

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

2.98 \pm 1.96(0.10) = 2.98 \pm 0.196 = (2.784,3.176)

5 0
3 years ago
1. Y=-2×+4<br> Complete the missing value in the solution to the equation (____,-2)
Ipatiy [6.2K]

Answer:

x =2

Step-by-step explanation:

y = - 2 x + 4

0 = - 2 x + 4

x = 2

6 0
3 years ago
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Evan is working two summer jobs, making $10 per hour babysitting and making $8 per hour walking dogs. In a given week, he can wo
sveticcg [70]

Answer:

Minimum whole hour is 3 hours. Other possible values are 4 hours.

Step-by-step explanation:

Given: Evan is paid for babysitting is $10 per hour.

           Paid for walking dog is $8 per hour.

           Maximum hour, he can work is 16 hours.

           Minimum earning Evan should get in a week is $140.  

           Evan have worked for 12 hours as babysitting.

Now, finding minimum number of hours Evan shoud work as walking dogs to meet his goal.

As given Evan have already worked for 12 hours as babysitting, therefore lets find the amount, he earned for babysitting.

Evan´s earning in 12 hours of babysitting= 12\ hours\times \$ 10= \$ 120

∴ Evan´s total earning in 12 hours of babysitting is $120.

Next, Hours remaining from his maximum working hours and amount to be earned to earn more to achieve his minimum earning.

Hours remaining= 16\ hours- 12\ hours= 4\ hours

∴ 4 hours remaining after he have worked for babysitting.

Amount to be earned to achieve minimum goal= \$ 140-\$ 120= \$ 20

∴ Amount to be earned to achieve minimum goal on the week is $20.

If Evan work for 2 hours, then he can earn= 2 \ hours \times \$ 8= \$ 16

$16 will not fulfill the minimum earning criteria of $140.

However, if Evan work for 3 hours, then he can earn= 3 \ hours \times \$ 8= \$ 24

∴ Minimum 3 hours Evan have to work for walking dogs to get minimum earning of the week.

Evan can work for 4 hours also for walking dogs to get additional earning. As his Total working hour will be 12\ hours + 4\ hours= 16\ hours only, which is fulfilling the criteria of maximum 16 hours.

5 0
3 years ago
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