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Lerok [7]
3 years ago
9

A scientist wants to know how many catfish are in

Mathematics
1 answer:
djverab [1.8K]3 years ago
3 0

Answer:

105 catfish

Step-by-step explanation:

48 - 3 = 45

45 + 60 = 105

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Help please, will give thanks uwu
BabaBlast [244]

(3x) + (x+60) = 180

4x + 60 = 180

Subtract 60 from both sides

4x = 120

Divide 4 from both sides

x = 30

7 0
3 years ago
Read 2 more answers
What is the peremeter of this polygon? (With picture)
lyudmila [28]
Check the picture below.

so.. simply, use the distance formula, to get their length an add them up, and that's the perimeter of the polygon.


\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
&({{ -1}}\quad ,&{{ 2}})\quad 
%  (c,d)
&({{ 2}}\quad ,&{{ 4}})\\
&({{ 2}}\quad ,&{{ 4}})\quad 
%  (c,d)
&({{ 3}}\quad ,&{{ -2}})\\
&({{ 3}}\quad ,&{{ -2}})\quad 
%  (c,d)
&({{ -2}}\quad ,&{{ -3}})\\
&({{ -2}}\quad ,&{{ -3}})\quad 
%  (c,d)
&({{ -1}}\quad ,&{{ 2}})
\end{array}\qquad 
%  distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}

\bf -------------------------------\\\\
d=\sqrt{[2-(-1)]^2+(4-2)^2}\implies d=\sqrt{(2+1)^2+(2)^2}
\\\\\\
d=\sqrt{3^2+2^2}\implies \boxed{d=\sqrt{13}}\\\\
-------------------------------\\\\
d=\sqrt{(3-2)^2+(-2-4)^2}\implies d=\sqrt{1^2+(-6)^2}\implies \boxed{d=\sqrt{37}}\\\\
-------------------------------\\\\
d=\sqrt{(-2-3)^2+[-3-(-2)]^2}\implies d=\sqrt{(-5)^2+(-3+2)^2}
\\\\\\
d=\sqrt{(-5)^2+(-1)^2}\implies \boxed{d=\sqrt{26}}

\\\\
-------------------------------\\\\
d=\sqrt{[-1-(-2)]^2+[2-(-3)]^2}\implies d=\sqrt{(-1+2)^2+(2+3)^2}
\\\\\\
d=\sqrt{(1)^2+(5)^2}\implies \boxed{d=\sqrt{26}}

so, those are their lengths, sum them all up, that's the polygon's perimeter.

4 0
3 years ago
What is the slope of the line perpendicular to a line that contains the points (-5,4) and (-2,4)
steposvetlana [31]

Answer:

the slope of the line is: 0

Step-by-step explanation:

4-4=0

-2-5= 3

7 0
3 years ago
What is the surface area of a cone
Kisachek [45]
I do not know I’m sorry
8 0
3 years ago
Sara has 3 1/2 feet of ribbon.
Marizza181 [45]

Answer:

5 bows

Step-by-step explanation:

Total feets of ribbon = 3 1/2

Fraction required to make a bow = 2/3

Number of bows that can be made = (total ribbon / Fraction required to make a bow)

3 1/2 ÷ 2/3

7/2 ÷ 2/3

7/2 * 3/2

= 21 / 4

= 5.25

6 0
3 years ago
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