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malfutka [58]
4 years ago
15

What is 2 3/4 + -2 1/2

Mathematics
1 answer:
zimovet [89]4 years ago
3 0

Answer:

1/4 or 0.25

Step-by-step explanation:

I did this on a graphic calculator so i can't really explain, but I hope this helps! :)

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What is the Area and perimeter of triangle HAB?
charle [14.2K]

bearing in mind that there are 90 feet between each base in a baseball diamond, so the total perimeter of it will be 90*4 = 360, one third of that is 360/3 = 120.

So Jones went 120 feet first and then another and so on, check the picture below.

using those values, can get the length of those sides, using the pythagorean theorem.

\bf AH=\sqrt{HF^2+FA^2}\implies AH=\sqrt{9000} \\\\\\ AB=\sqrt{AS^2+SB^2}\implies AB=\sqrt{7200} \\\\\\ HB = AH = \sqrt{9000} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{perimeter}{\sqrt{9000}+\sqrt{7200}+\sqrt{7200}}\qquad \approx \qquad \stackrel{perimeter}{264.57}

now, we can plug those values in the Heron's Area Formula to get its area.

\bf \qquad \textit{Heron's area formula} \\\\ A=\sqrt{s(s-a)(s-b)(s-c)}\qquad \begin{cases} s=\frac{a+b+c}{2}\\[-0.5em] \hrulefill\\ a=\sqrt{9000}\\ b=\sqrt{7200}\\ c=\sqrt{7200}\\ s\approx 132.29 \end{cases} \\\\\\ A=\sqrt{132.29(132.29-\sqrt{9000})(132.29-\sqrt{7200})(132.29-\sqrt{7200})} \\\\[-0.35em] ~\dotfill\\\\ ~\hfill A\approx 3337.289~\hfill

3 0
3 years ago
Help with a,b,and c please
aliina [53]

Answer:

same need answer!!

Step-by-step explanation:

7 0
3 years ago
Please help me it’s for a test I’ll give you an Brainly
rusak2 [61]

Answer:

it may be wrong as well

Step-by-step explanation:

I think the answer is option no.4 or5

5 0
3 years ago
Alison has $1.60 worth of nickels and dimes in her coin purse. She has 11 more nickels than dimes.
zimovet [89]
32 nickles and 42 dimes
8 0
3 years ago
I am thinking of a number.
AfilCa [17]
Hmmm......

Then, you must be thinking of 19.






Explanation:

Let you numher be x

now
according to question

multiply it by 8 and it becomes 8×x = 8x

Now add 22
so it becomes
8x + 22

now as told in the question take the same number again i.e x for one more time.

multiply it by 6
and you'll get 6x
and after adding 60 you'll get 6x + 60

Now again according to question
8x+ 22 and 6x+60 are same number therefore they must be equal,

8x+22 = 6x+60

Do a little azebra

8x -6x = 60 -22
2x = 38
x = 19.

and Tada, your number is here.
4 0
4 years ago
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