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fiasKO [112]
3 years ago
6

Find the differnce of the following sequence: -7, -9 ,-11

Mathematics
1 answer:
Slav-nsk [51]3 years ago
8 0
Add -2 each time
-7+-2=-9
-9+-2=-11
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Nita is using ribbon for gift boxes. She has 49 feet of ribbon. She needs to wrap 16 boxes of identical size. How much ribbon ca
OLEGan [10]

Answer:

The answer would be B or 3 1/16.

Step-by-step explanation:

5 0
3 years ago
Solve the equation for x. 2x + 22 = 4(x+3)
shusha [124]

Answer:

x = 5

Step-by-step explanation:

We have the algebraic expression and are asked to solve for x.

To solve, we need to isolate x.

2x + 22 = 4(x + 3)

Distribute :

2x + 22 = (4(x) + 4(3))

2x + 22 = 4x + 12

Subtract 12 from both sides :

2x + 10 = 4x

4x = 2x + 10

Subtract 2x from both sides :

2x = 10

Divide 2 from both sides to get x alone :

x = 5

5 0
3 years ago
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How to simplify 6x^2y^-3/x^-5
mixas84 [53]
6x^7/y3 is the answer

8 0
3 years ago
What is the answer to this equation in distributive property -4(2x-5)
Shalnov [3]

Answer:-4(2x-5)

Step-by-step explanation:

-4(2x-5)

-4(2x)+(-4)(-5)

-8x+20

-8/-4x+20/-4

-4(2x-5)

5 0
2 years ago
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According to a Human Resources report, a worker in the industrial countries spends on average 419 minutes a day on the job. Supp
MA_775_DIABLO [31]

Answer:

A) Between 388 and 450

B) Between 357 and 481

C) Between 326 and 512

D) 99.995%

E) 72.907%

Step-by-step explanation:

We are given;

Mean; x¯ = 419 minutes

Standard deviation; σ = 31 minutes

A) From the empirical rule, 68% falls within 1 standard deviation.

Thus, it will be between;

419 - 1(31) and 419 + 1(31)

Thus gives;

Between 388 and 450

B) From the empirical rule, 95% falls within 2 standard deviation.

Thus, it will be between;

419 - 2(31) and 419 + 2(31)

Thus gives;

Between 357 and 481

C) From the empirical rule, 99.7% falls within 2 standard deviations.

Thus, it will be between;

419 - 3(31) and 419 + 3(31)

Thus;

Between 326 and 512

D)between 359 and 479 minutes, we will use z-s roe formula;

z = (479 - 359)/31

z = 3.871

From the z-table attached, we see that the probability is 0.99995 and as such, the percentage is 99.995%

E) worker spent 400 minutes on the job.

Thus;

z = (419 - 400)/31

z = 0.613

From z-tables, p = 0.72907

In percentage, we have; 72.907%

6 0
3 years ago
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