Multiply and completely simplify: (4x+6) (x-1) PLEASE HELP NOW

Ashley is making $500 a week at her job. she receives a 20% pay rise. a year later she takes a 5% pay cut. how much does she mak

aleksandrvk [35]

Answer:

Ashley is making $570 a week

Step-by-step explanation:

500 + 20%= 600

600-5% =570

3 0

2 years ago

A cylindrical container of height 28cm and diameter 18cm is filled with water.The water is then poured into another container wi

Harman [31]

Answer:

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Asked on December 20, 2019 by

Ziya Vïvəķ

A cylindrical container with diameter of base 56cm contains sufficient water to submerge a rectangular solid of iron with dimensions (32×22cm×14cm). Find the rise in the level of water when the solid is completely submerged.

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ANSWER

Given,

Diameter of the base of the cylindrical container d=56 cm

Hence, radius of the base of the cylindrical container r=

2

56

=28 cm

Dimensions of rectangular solid is (32 cm×22 cm×14 cm)

We know that when a body is completely submerged in a container containing water,

the rise in the volume of water in the container is equal to the volume of the body.

Let, the water rises to a height h.

Hence,

Volume of water rises in cylindrical container =Volume of the rectangular solid

πr

2

h=32×22×14 cm

3

7

22

×(28)

2

×h=9856 cm

h=

22×784

9856×7

cm

h=4 cm

4 0

3 years ago

Read 2 more answers

A customer service phone line claims that the wait times before a call is answered by a service representative is less than 3.3

Vika [28.1K]

Answer:

(A) Yes, since the test statistic is in the rejection region defined by the critical value, reject the null. The claim is the alternative, so the claim is supported.

Step-by-step explanation:

Null hypothesis: The wait time before a call is answered by a service representative is 3.3 minutes.

Alternate hypothesis: The wait time before a call is answered by a service representative is less than 3.3 minutes.

Test statistic (t) = (sample mean - population mean) ÷ sd/√n

sample mean = 3.24 minutes

population mean = 3.3 minutes

sd = 0.4 minutes

n = 62

degree of freedom = n - 1 = 62 - 1 = 71

significance level = 0.08

t = (3.24 - 3.3) ÷ 0.4/√62 = -0.06 ÷ 005 = -1.2

The test is a one-tailed test. The critical value corresponding to 61 degrees of freedom and 0.08 significance level is 1.654

Conclusion:

Reject the null hypothesis because the test statistic -1.2 is in the rejection region of the critical value 1.654. The claim is contained in the alternative hypothesis, so it is supported.

5 0

2 years ago

What is the result when the number is 72 is decreased by 44%. Round your answer to the nearest tenth?

Sonbull [250]

The answer is 164 I believe

4 0

3 years ago

Sara buys 1 pair of jeans for $20 and 5 shirts .The total of her purchase was $55.Witch equation models the scenario? a)1+5=20x

kirill115 [55]

Answer:

the answer is b)20+5x=55

5 0

2 years ago