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3 years ago

I need help ASAP :(((

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

5 0

Answer:

Step-by-step explanation:

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How do you do this. It does not make since

Anon25 [30]

Answer: n=15

Step-by-step explanation:

To find the perimeter, you add all of the side lengths together. This would make the equation 28+28+n+n. You already know the perimeter and are trying to find n. Your new equation is 28+28+n+n=86

You would then combine the like terms and get

56+2n=86

Then you would subtract 56 from both sides and get

2n=30

Finally, you want to divide both sides by 2 in order to get n alone. 30/2 is 15. Therefore,

N=15

6 0

3 years ago

Daniel and Morgan both live 132 miles away from the beach it took Daniel 253 minutes less than two times the time it took Morgan

kenny6666 [7]

Answer:

It took 187.4 minutes to arrive Daniel at the beach.

Step-by-step explanation:

Given:

Daniel and Morgan both live 132 miles away from the beach it took Daniel 253 minutes less than two times the time it took Morgan to reach the beach.

Morgan drove at 36 mph.

Now, to find the time it take Daniel to arrive at the beach.

Let the time taken by Morgan be $x.$

And the time taken by Daniel is $2x-253.$

Distance = 132 miles.

Speed = 36 mph.

Now, to get the time taken by Morgan by putting the formula:

Distance = Speed × time

$132=36\times x$

Dividing both sides by 36 we get:

$3.67=x\\x=3.67\ hours.$

So, the time taken by morgan = 3.67 hours.

Thus, we convert the time into minutes:

$3.67\times 60\\=220.2\ minutes.$

Now, the time taken by Daniel, we get by substituting the value of $x$ :

$2x-253\\=2\times 220.2-253\\=440.4-253\\=187.4\ minutes.$

Therefore, it took 187.4 minutes to arrive Daniel at the beach.

6 0

3 years ago

My brain do be dead. I'm trying to catch up in my math class before Christmas. Any help I can get would be SO APPREICTATED AAA

soldier1979 [14.2K]

Answer:

x=3

Step-by-step explanation:

for 17.

we have that x=8 as one solution

then we have

x-8=0

so we know that

$f(x)=(x-8)(something)$

$\frac{f(x)}{x-8}=something$

so we divide and get that

$something = x^{2} -6x+9x$

and we can factor it as

$(x-3)(x-3)$

so the other solutions are

x-3 =0

x = 3

this is a normal division

3 0

3 years ago

Read 2 more answers

What is the slope-intercept form of the function that contains the point (–1, 5) and has a slope of –4?

Rainbow [258]

Slope intercept form equation:

y=mx+C

----------------------

We already know that m=-4. Now, let's find the value of C.

--------------------

m=-4, and when x=-1, y=5.

(5)=(-4)*(-1)+C

5=4+C

5-4=4+C-4

1=C

-----------------

Therefore the slope intercept form of the function is:

y=-4x+1

8 0

3 years ago

Read 2 more answers

Please answer all three questions asap

Sloan [31]

1. write it as it is
2. 70.04 since to round you go two decimal places and because the place after that is higher than 5 you round 3 up to 4.
3. DNE since you can’t divide any number by 0

6 0

3 years ago