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Alex777 [14]
3 years ago
14

Given: -3(2x + 7) = -29 – 4x; Prove: x = 4

Mathematics
1 answer:
sergey [27]3 years ago
8 0

Answer:

See steps below

Step-by-step explanation:

-3(2x+7)=-29-4x

Use the distributive property

-6x-21=-29-4x

Add 21 to each side

-6x=-8-4x

Add 4x to both sides

-2x=-8

Divide by -2

x=4

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erastova [34]

Answer:

6.7 units

Step-by-step explanation:

The shortest distance between two lines is the perpendicular line.

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Slope of the perpendicular line: - 1/2

Point (-5,8)

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Perpendicular line equation: y = -1/2x + 11/2

y = y

2x +3 = -1/2x + 11/2

2x + 1/2x = 11/12 - 3

5/2x = 5/2

x = (5/2) / (5/2)

x = 1

Plug x = 1 into any of the equations of the line to find y.

y = 2x + 3

y = (2*1)+3 = 5

Points from the perpendicular line (1,5) and (-5,8)

Distance between these two points:

d = sqrt[(-5-1)^2 + (8-5)^2]

= sqrt (6^2 + 3^2) = sqrt 45

= 6.7

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3 years ago
Which ratio is equal to 6/15 as a fraction ?
Vanyuwa [196]

Which ratio is equal to 6/15 as a fraction

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Sketch the region bounded by the curves x=y3,x=1, and y=0 then find the volume of the solid generated by revolving this region a
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According to the question, the region is bounded by the curve with the given data as x = y^{3} , x=1, y=0.

To compute the volume of the solid, use the disk method. The given object is rotated along the horizontal axis with the disk cross sectional area and the volume can be written as:

v=\int\limits^a_b {\pi x^{2} } \, dx

As per question, when x = 1 then the value of y is: y = 1

Now, substituting calculated values in the expression:

v=\int\limits^a_b {\pi x^{2} } \, dx=v=\int\limits^0_1 {\pi x^{2} } \, dx

Substitute the value of the variable 'x':

Therefore, the expression can be written as:

v=\int\limits^a_b {\pi x^{2} } \, dx=v=\int\limits^0_1 {\pi x^{2} } \, dx=\int\limits^0_1 {\pi (y^{3}) ^{2} } \, dx=\frac{\pi }{7}=0.448

To learn more about the integration from the given link:

<u>brainly.com/question/988162</u>

#SPJ4

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1 year ago
A plot of land is 3/8 mile by 2 1 /4 miles. Spencer solves 3/8⋅2 1/4 to find the area of the land in square miles. Enter numbers
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Change the mixed number to an improper fraction

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