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inysia [295]
1 year ago
13

Find the Area-Rectangle a = x +3 b = 2x - 1

Mathematics
1 answer:
Anna71 [15]1 year ago
7 0

Answer:

2x^2 + 5x - 3

Step-by-step explanation:

Area = length (a) * width (b)

(x + 3) * (2x - 1)

2x^2 + 6x - x - 3 (combine like terms)

2x^2 + 5x - 3

Brainliest, please :)

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Answer:

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Step-by-step explanation:

6 0
2 years ago
Please help asap!!!
nexus9112 [7]

Answer:

∠ B = 123°, ∠ D = 57°

Step-by-step explanation:

Each lower base angle is supplementary to the upper base angle on the same side.

∠ A and ∠ D are on the same side, then

6x + 12 + 2x + 20 = 180

8x + 32 = 180 ( subtract 32 from both sides )

8x = 148 ( divide both sides by 8 )

x = 18.5

Thus

∠ A = 6x + 12 = 6(18.5) + 12 = 111 + 12 = 123°

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The lower base angles and the upper base angles are congruent, so

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6 0
2 years ago
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15. In the coordinate plane, line Li passes through (0, 6) and (-8, 0).1) Determine the measure of the acute angle that L1 forms
Ksivusya [100]

Part 1

we have the points (0,6) and (-8,0)

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Graph the given line

see the figure below

Find out the measure of angle X

tan(X)=6/8 -----> by TOA

X=tan^-1(3/4)

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Part 2

step1

Find out the equation of the perpendicular line to the Line L1 that passes through the origin

Remember that

If two lines are perpendicular

then

their slopes are negative reci[rocal

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the slope of the perpendicular line to L1 is

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step 2

Find out the equation of the line

y=-(4/3)x

step 3

Find out the intersection point between L1 and the perpendicular line

we have the system

y=(3/4)x+6 ----------> L1

y=-(4/3)x

Solve by graphing

step 4

Find out the distance between points (-2.88,3.84) and (0,0)

Applying the formula of the distance between two points

\begin{gathered} d=\sqrt{(0-3.84)^2+(0+2.88)^2} \\ d=4.8 \end{gathered}

therefore

The answer Part 2 is

<h2>The distance is 4.8 units</h2>

part 3

<h2>The point in L1 nearest to the origin is the point (-2.88,3.84)</h2>

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Nuetrik [128]

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