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3 years ago

What is the equation for the line of reflection that maps the trapezoid onto itself? Enter your answer in the box______

Mathematics

1 answer:

nadezda [96]3 years ago

6 0

Y = -1

It is an isosceles trapezoid, which is just as well, otherwise it could not reflect onto itself. The line of reflection is the same as the mirror line which is the same as the axis of symmetry.

It runs horizontally exactly through the middle of the shape.

All horizontal lines have the equation y = a value

In this case the line is y=−1

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The length of a rectangle is 2 meters more than its width. The area of the rectangle is 80 square meters. What is the length and

insens350 [35]

Answer:

Step-by-step explanation:

Formula

A = L * W

Givens

W = W

L = W + 2

Solution

Area = L*W

Area = (W+2)*W = 80 Remove the brackets.

Area = W^2 + 2W = 80 Subtract 80 from both sides.

Area = w^2+2W-80=80-80 Combine

Area = w^2 +2W-80 = 0 Factor.

Area = (w+10)(w - 8) = 0

W + 10 = 0 won't work

W = - 10 which isn't possible

W- 8 = 0

W = 8

L = 8 + 2 = 10

The answer looks like A

8 0

2 years ago

The equation p=100−5t represents the percent p of battery power remaining in a tablet after t hours.

puteri [66]

Answer:

Step-by-step explanation:If p=100% and t=20% than 5×20=100 because if you add 20 five different times you get 100.

7 0

2 years ago

In febuary, john has $1000 in his account. in may, he had 2600. what is the rate of change?

sergiy2304 [10]

Answer:

866.7 each month

Step-by-step explanation:

what you would do is count how many months are in between which is 3 and then you would divide 2600 by 3 and get 866.7 so the rate of change is 866.7 each month

please mark brainliest

5 0

2 years ago

Hello, please help thank youu!!

uranmaximum [27]

Answer:

36 $\frac{1}{2}$

Step-by-step explanation:

(5 $\frac{1}{2}$ x 3) + (10 ÷ $\frac{1}{2}$ )

(16 $\frac{1}{2}$ ) + (10 ÷ $\frac{1}{2}$ )

(16 $\frac{1}{2}$ ) + (20)

36 $\frac{1}{2}$

7 0

3 years ago

Read 2 more answers

What is the 9th term of the geometric sequence 4, −20, 100, …?

sveta [45]

First, we are going to find the common ratio of our geometric sequence using the formula: $r= \frac{a_{n}}{a_{n-1}}$ . For our sequence, we can infer that $a_{n}=-20$ and $a_{n-1}=4$ . So lets replace those values in our formula:
$r= \frac{-20}{4}$
$r=-5$

Now that we have the common ratio, lets find the explicit formula of our sequence. To do that we are going to use the formula: $a_{n}=a_{1}*r^{n-1}$ . We know that $a_{1}=4$ ; we also know for our previous calculation that $r=-5$ . So lets replace those values in our formula:
$a_{n}=4*(-5)^{n-1}$

Finally, to find the 9th therm in our sequence, we just need to replace $n$ with 9 in our explicit formula:
$a_{9}=4*(-5)^{9-1}$
$a_{9}=4*(-5)^{8}$
$a_{9}=1562500$

We can conclude that the 9th term in our geometric sequence is 1,562,500

4 0

2 years ago