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Marianna [84]
3 years ago
6

Walt grew 10 centimeters in 1 year.He is now 1.6 m tall.How tall was he 1 year ago

Mathematics
2 answers:
Bond [772]3 years ago
8 0
.6 i believe thats the right answer but am guessing  on the procedure

Lisa [10]3 years ago
7 0
Well 1 meter is 100 centimeters, so he grew one-tenth of a meter, so you subtract one tenth from 1.6 to get 1.5m
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Asociologist is studying influences on family size. He finds pairs of sisters, both of whom are married, and determines for each
Mazyrski [523]

Answer:

:0

Step-by-step explanation:

6 0
3 years ago
Two types of plastics are suitable for an electronics component manufacturer to use. The breaking strength of this plastic is im
UNO [17]

Answer:

a. We fail reject to the null hypothesis because zo = -5.84 < 1.65 = zα and P-value = 1 (approximately)

b. The confidence Interval for u1 - u2 is; 6.79 ≤ u1 - u2

c. The power of the test = 1 -

β = 0.998736

d. The sample size is adequate because the power of the test is approximately 1

Step-by-step explanation:

Given

Standard Deviations; σ1 = σ2 = 1.0 psi

Size: n1 = 10; n2 = 12

X = 162.5; Y = 155.0

Let X1, X2....Xn be a random sample from Population 1

Let Y1, Y2....Yn be a random sample from Population 2

We assume that both population are normal and the two are independent.

Therefore, the test statistic

Z = (X - Y - (u1 - u2))/√(σ1²/n1 + σ2²/n2)

See attachment for explanation

8 0
3 years ago
Answer all questions, your combing like terms. Show ALL of you work! Thank you!!
Elanso [62]

Answer:

1. -12x - 9y - 6

2. -12x + 36

3. -240

4. -2

5. x = -57

6. x = -6

7. x = 48

8. x = 20

9. x = -288

10. n = 8

Step-by-step explanation:

1.

-5x - 13 + 3y - 7x - 12y + 7

-12x - 13 + 3y - 12y +  7

-12x - 6 + 3y - 12y

-12x - 6 - 9y

-12x - 9y - 6

2.

-3(4x - 12)

-3(4x) + (-3)(-12)

-12x + 36

3.

6x - 282

6(7) - 282

42 - 282

-240

4.

6x + 2(y + x)

6(-2) + 2(7 + (-2))

-12 + 2(7 - 2)

-12 + 2(5)

-12 + 10

-2

5.

x - 23 = -80

 + 23    +23

x = -57  

6.

12x = -72

/12     /12

x = -6

7.

x/4 = 12

* 4    * 4

x = 48

8.

3x + 12 = 72

    -  12  - 12

3x = 60

/3     /3

x = 20

9.

x/4 - 8 = -80

     + 8    + 8

x/4 = -72

* 4    * 4

x = -288

10.

-4(1 - 5n) - 8n = 92

-4 + (-4)(-5n) - 8n = 92

-4 + 20n - 8n = 92

-4 + 12n = 92

12n - 4 = 92

     + 4    + 4

12n = 96

/12     /12

n = 8

6 0
3 years ago
HELP ME PLEASE I REALLY COULD USE IT BRAINLY GOES TO THE CORRECT ANSWER
Zanzabum

Answer:

y=x+8

Step-by-step explanation:

In order to get the output (y), you have to add 8 to the input (x).

18 + 8 = 26

35 + 8 = 43

86 + 8 = 94

therefore, x+8=y

8 0
2 years ago
Read 2 more answers
(15 points)
nikitadnepr [17]

Answer:

5) p=67.5

6) p=60.9

Step-by-step explanation:

To find the perimeter of a polygon you add all the side lengths together.

Step 1:

11.3+11.3+23.3+21.6=67.5

Step 2:

19.7+14+9.3+17.9=60.9

8 0
3 years ago
Read 2 more answers
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