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4 years ago

Please help me find the perimeter of this triangle please

Mathematics

1 answer:

Hatshy [7]4 years ago

8 0

$\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
C&({{ 1}}\quad ,&{{ 9}})\quad 
% (c,d)
B&({{ 7}}\quad ,&{{ 1}})
\end{array}\qquad 
% distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
CB=\sqrt{(7-1)^2+(1-9)^2}\implies CB=\sqrt{6^2+(-8)^2}
\\\\\\
CB=\sqrt{36+64}\implies CB=\sqrt{100}\implies CB=10$

add the sides with 8 and 6 to it, and that's the perimeter.

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Tonya is staring a jewelry business. She is going to sell b bracelets for $12.50 each and n necklaces for $22.50. Tonya wants to

marysya [2.9K]

Answer:

C 12.50b+22.50n≥800

Step-by-step explanation:

Tonya is staring a jewelry business. She is going to sell b bracelets for $12.50 each and n necklaces for $22.50. Tonya wants to make at least $800 a month.

When we use the word at least in Mathematics is means that it is equal to or more than $800.

It is represented by the symbol ≥

Number of bracelets = b

Number of necklaces = n

Therefore, the inequality below models this situation is given as:

$12.50 × b + $22.50 × n ≥ $800

= 12.50b + 22.50n ≥ 800

Option C is correct.

3 0

3 years ago

a sandwich shop has a "build your own" sandwich on its menu. for this option, a roll costs $0.75 and turkey costs $1.75 a pound.

Zolol [24]

For this case, the first thing we must do is define a variable.

We have then:

x: number of pounds of turkey

We write now the inequality that models the problem.

We know that:

1) a roll costs $ 0.75 and turkey costs $ 1.75 a pound

2) The sandwich costs up to $ 6.00

Therefore, the inequality is given by:

$1.75x + 0.75 \leq 6$

Clearing the value of x we have:

$1.75x \leq 6-0.75$

$1.75x \leq 5.25$

$x \leq \frac{5.25}{1.75}$

$x \leq 3$

Answer:

An inequality that shows how much turkey can be ordered on a roll for a sandwich to cost up to $ 6.00 is:

$x \leq 3$

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3 years ago

Which is the best estimate of watch percent?

Fittoniya [83]

The answer is C, I hope this helps

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3 years ago

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astraxan [27]

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3 years ago

Four women must cross a bridge over a deep ravine in enemy territory in the middle of the night, treacherous bridge will hold on

Galina-37 [17]

Ok, this is usually a trial and error question and it is supposed to be fun.
I believe you want the four women to cross the bridge in the least possible time before the bridge collapses.

The solution is as follows:
1- The 5-minute lady and 10-minute lady cross the bridge
(the total time will be 10 minutes)
2- The 5-minute lady returns
(the total time will be 5 + 10 = 15 minutes)
3- The 20-minute lady and 25-minute lady cross
(the total time will be 15 + 25 = 40 minutes)
4- The 10-minute lady returns
(the total time will be 10 + 40 = 50 minutes)
5- The 5-minute lady and 10-minute lady finally cross
(the total time will be 10 + 50 = 60 minutes)

The last one to cross should step aside from the bridge as quickly as possible before the bridge collapses.

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4 years ago