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3 years ago

8

What do the parallel lines shown on segment BD and segment DC represent? _____________________

2 answers:

kherson [118]3 years ago

6 0

The parallel lines shown on segments BD and DC represent that they are equal in length.

BD = 18 = DC

Thus, correctly assuming that the point D is the mid point of line segment BC.

postnew [5]3 years ago

4 0

the 2 parallel lines mean that the lines are equal

SO since BD = 18, DC is also 18

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If you want to put a 4x8 piece of plywood through a 3 foot square opening in your ceiling by turning it diagonally is the openin

Zigmanuir [339]

Here we apply the Pythagorean theorem:
c^2=a^2+b^2
The diagonal of the opening will be:
c^2=3^2+3^2
c^2=9+9
c^2=18
c=3√2 ft

The diagonal of the wood will be:
c^2=4^2+8^2
c^2=16+64
c^2=80
c=4√5 ft

The space will not be enough for the plywood to pass

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3 years ago

20 POINTS AND BRAINLIEST!! Write an exponential function in the form y=ab^x

Rudik [331]

Answer:

$y=13(4)^x$

Step-by-step explanation:

We have the exponential function of the form:

$y=ab^x$

And it goes through the points (0, 13) and (3, 832).

Hence, when we substitute in 0 for x, we should get 13 for y. Therefore:

$13=ab^0$

Since anything to the zeroth power is 1, this yields:

$a=13$

So, we determined that the value of a is 13.

So, our function is now:

$y=13b^x$

We will need to determine b. We know that y equals 832 when x is 3. Hence:

$832=13(b)^3$

Divide both sides by 13:

$b^3=64$

Take the cube root of both sides:

$b=4$

Hence, our b value is 4.

Therefore, our entire equation is:

$y=13(4)^x$

3 0

3 years ago

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Rasek [7]

Hope this helps have a nice day

8 0

2 years ago

Ayden is trying to lose weight to compete in a wrestling competition. In order to lose weight, he must burn more calories than h

docker41 [41]

Answer:

he must run 30 miles to burn 1200 calories

Step-by-step explanation:

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3 years ago

A shopping mall parking garage charges $2 for the first half hour and $1.20 for each additional half hour (even if it is under 3

Neko [114]

You can park in the garage for 5 hours 30 minutes

<em><u>Solution:</u></em>

Given that, shopping mall parking garage charges $2 for the first half hour and $1.20 for each additional half hour (even if it is under 30 minutes)

Therefore,

Cost for first half an hour = $ 2

Cost for each additional half an hour = $ 1.20

Let "x" be the number of each additional half hour

Therefore, total cost to pay is given as:

Total cost = Cost for first half an hour + (Cost for each additional half an hour)(number of each additional half hour)

Total cost = 2 + 1.20x

<em><u>Given you have $ 8 in cash</u></em>

$8 = 2 + 1.20x\\\\1.20x = 8 - 2\\\\1.20x = 6\\\\x = \frac{6}{1.20}\\\\x = 5$

Total hours parked = first half an hour + 5

Thus you can park in the garage for 5 hours 30 minutes

4 0

3 years ago