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zavuch27 [327]
3 years ago
10

Question:4 please help!

Mathematics
1 answer:
Ket [755]3 years ago
3 0

Answer:

2) 2x-6

Step-by-step explanation:

"6 less than" is subtracting 6 from "twice the value of x" or 2x. So the expression is 2x - 6.

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The sides of a parallelogram are 40 and 70 feet long,and the smaller angle has a measure of 36.Find the length of the longer dia
Mumz [18]

Answer:

105 feet.

Step-by-step explanation:

The longer diagonal is opposite the longer angle in the parallelogram.

The longer angle = 180 - 36 = 144 degrees. (Reason: he same side angles  are supplementary).

So, by the law of cosines:

x^ 2 = 40^2 + 70^2 - 2*40*70 cos 140    where x = the diagonal.

x^2 =  11030.50

x = 105.03 feet.

3 0
3 years ago
A plumber charges $75 to visit your house plus $50 per hour in labor costs to make any
Illusion [34]

Answer:

75+50h=A

Step-by-step explanation:

75 bucks plus 50 per hour equals the total cost

6 0
3 years ago
Please explain I will also give BRAINLIEST
serious [3.7K]

Answer:

read the step by step

Step-by-step explanation:

WARNING IM NOT POSTITIVE ITS RIGHT

a:how fast it will reach the ground

b:descending since they are going down

C:subtract a number by 1500

6 0
2 years ago
The slope of the line below is -2. Use the coordinates of the labeled point to find the point-slope equation of the line. (4, -6
r-ruslan [8.4K]

<u>Answer:</u>

The point-slope equation of the line is y = -2x +2 or 2x+y = 2

<u>Solution: </u>

Let us assume that the slope is m and the y intercept of the line is b

Hence, y=m x+b--------- (i)

y intercept means we need to find the value of y when x is 0

Here the line passes through point (4,-6) and slope m = (-2)

Now putting the point (4,-6) in equation (i) we get,

\Rightarrow-6 = m\times4 +b

\Rightarrow-6 = (-2)\times4 +b

\Rightarrow-6 = -8 +b

\Rightarrow-6+8 =b

\Rightarrow b = 2

So, the equation of the line will be will be y = -2x +2 or 2x+y = 2

6 0
2 years ago
2. Describe how to use the conjugate to divide 2 − i by 3 + 2i, and then find the quotient.
DaniilM [7]

Answer:

\frac{4}{13}-\frac{7}{13}i

Step-by-step explanation:

\frac{2-i}{3+2i}

Multiply and divide by the conjugate.

The conjugate is the denominator with the sign of the complex number the opposite of the denominator.

\frac{2-i}{3+2i}\frac{3-2i}{3-2i}\\ =\frac{2\times (3-2i)-i\times (3-2i)}{3^2-(2i)^2}\\ =\frac{6-4i-3i+2i^2}{9+4}\\ =\frac{4-7i}{13}\\ =\frac{4}{13}-\frac{7}{13}i

Quotient = \frac{4}{13}-\frac{7}{13}i

7 0
3 years ago
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