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kondor19780726 [428]
3 years ago
6

25 Pts + Brainliest for the first correct answer.

Mathematics
1 answer:
GuDViN [60]3 years ago
6 0

Answer:

29) x = 17

30) x =14

31) x = 23

32) x = 44


Step-by-step explanation:

29)

6x - 17 = 85

6x = 102

x = 17


30)

4x + 21 + 103 = 180

4x + 124 = 180

4x = 56

x = 14


31)

2x + 23 = 4x - 23

-2x = - 46

 x = 23


32)

4x - 42 = 134

4x = 176

x =  44

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A right triangle has (5 points)
nata0808 [166]

Answer:

The answer should be 4).

5 0
3 years ago
What is 20% tip on a bill of 59.61
Ugo [173]

Answer:

about $12

Step-by-step explanation:

59.61(0.20)=11.922

11.922 rounded up is 12.

ur total bill would be $71.61

5 0
3 years ago
The maintenance department at the main campus of a large state university receives daily requests to replace fluorecent lightbul
Thepotemich [5.8K]

Answer:

About 34%

Step-by-step explanation:

Given that :

Mean, m = 59 ; Standard deviation, s = 3

Bulb replacement numbering between 59 and 62

For, x = 59

Zscore = (x - m) / s

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0.84134 - 0.5

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4 0
3 years ago
For what values of q are the two vectors A = i + j + kq each other and B-iq-23 + 2kg perpendicular to
Sloan [31]

Answer:

The value of q are 0.781,-1.281.

Step-by-step explanation:

Given : Two vectors A=i+j+kq and B=iq-2j+2kq are perpendicular to each other.

To find : The value of q ?

Solution :

When two vectors are perpendicular to each other then their dot product is zero.

i.e. \vec{A}\cdot \vec{B}=0

Two vectors A=i+j+kq and B=iq-2j+2kq

(i+j+kq)\cdot (iq-2j+2kq)=0

(1)(q)+(1)(-2)+(q)(2q)=0

q-2+2q^2=0

2q^2+q-2=0

2q^2+q-2=0

Using quadratic formula,

q=\frac{-1\pm\sqrt{1^2-4(2)(-2)}}{2(2)}

q=\frac{-1\pm\sqrt{17}}{4}

q=\frac{-1+\sqrt{17}}{4},\frac{-1-\sqrt{17}}{4}

q=0.781,-1.281

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6 0
3 years ago
Will mark BRAINLIEST
musickatia [10]

Answer:

3 workbooks 5 dry earase markers

Step-by-step explanation:

seems to me like you need help offten

3 0
3 years ago
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