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3 years ago

The inverse of the relation y = 2x + 3 can be obtained graphically by:

Mathematics

2 answers:

sweet [91]3 years ago

4 0

The answer is d I just did Tun

guajiro [1.7K]3 years ago

3 0

Answer:

Step-by-step explanation:

The inverse of a relation is found graphically by reflection in the line y = x

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The length of a rectangular storage room is 3 feet longer than its width. if the area of the room is 40 square feet, find the wi

xenn [34]

Answer:

Width of rectangular storage room= 5 feet.

Step-by-step explanation:

Let x be the width of storage room.

We have been given that the length of a rectangular storage room is 3 feet longer than its width. So the length of storage room will be x+3.

We are also given that the area of the room is 40 square feet.

Since the area of a rectangle is length times width.

$\text{Area of rectangle}=\text{Length* Width}$

Let us substitute our given values in area formula.

$40=x*(x+3)$

Upon distributing x we will get,

$40=x^2+3x$

$x^2+3x-40=0$

Now let us factor out our quadratic equation using splitting the middle term.

$x^2+8x-5x-40=0$

$x(x+8)-5(x+8)=0$

$(x+8)(x-5)=0$

$x+8=0$ or $x-5=0$

$x=-8$ or $x=5$

Since width can not be negative, therefore, the width of rectangle will be 5 feet.

Let us verify our answer.

Length of rectangular storage room is 3 feet longer than its width. So length will be 5+3=8.

Given: Area=40 square feet.

5*8=40.

Hence, width of rectangular storage room is 5 feet.

7 0

3 years ago

WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!! You have agreed to borrow $40 and after 2 years you pay back $52. What is the in

Alecsey [184]

Answer:

6$ per year

Step-by-step explanation:

52-40=12/2=6

3 0

4 years ago

Read 2 more answers

Quadrilateral ABCD is shown. If m angles?

artcher [175]

Answer: m∠BCE = 63°

m∠BAD = 76°

Step-by-step explanation:

Problem 1:

Given

m∠BEC = 90°

m∠EBC = 27°

Total = 117°

Solution:

Subtract 180° - 117° = m∠BCE = 63°

Problem 2:

Given

m∠ADE = 52°

m∠ABE = 52°

Total = 104°

Solution:

Subtract 180° - 104° = m∠BAD = 76°

6 0

3 years ago

Solving for X with 1 angle and two congruent sides

Anna71 [15]

Answer:

So since the 2 angles are congruent they will be the same.

Step-by-step explanation:

So since the 2 angles are congruent they will be the same. So for example, if I have a triangle and angle 60 and two congruent angles it will be 60 + 2x =180. I congruent angle will be x then 2 of that is 2x. Angles in a triangle always sum up to 180.

4 0

4 years ago

Find the slope and y- intercept of x=-4

klemol [59]

Answer:

By definition, the slope of a vertical line is undefined. Because the value of x is always equal to 4 it is never equal to 0 therefore there is no y-intercept.

Step-by-step explanation:

8 0

3 years ago