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3 years ago

Need help plz thank u to who ever answers it

Mathematics

2 answers:

lozanna [386]3 years ago

8 0

The answer is letter B

goldfiish [28.3K]3 years ago

4 0

I believe it is D but it may be B

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Write a simplified polynomial expression in standard form to represent the area of the rectangle below.

olga nikolaevna [1]

(2x-4)(x+5) expand with indicated multiplication

2x^2+10x-4x-20

2x^2+6x-20

3 0

3 years ago

I dont understand I need help

gregori [183]

Answer:

7.4825 km or 7.48 km (rounded to nearest hundredth)

Step-by-step explanation:

Ranch's measurements rounded up to the nearest hundredth:

1st measurement = $\sqrt{60}$ = 7.75 km

2nd measurement = $\frac{58}{8}$ = 7.25 km

3rd measurement = 7.3(recurring) = 7.33 km

4th measurement = 7 $\frac{3}{5}$ = 7.60

The average of the four measurements is:

(7.75 + 7.25 + 7.33 + 7.60) ÷ 4 = 7.4825 km or 7.48 km (rounded to nearest hundredth)

6 0

4 years ago

What is <img src="https://tex.z-dn.net/?f=8.4%20-%204.2" id="TexFormula1" title="8.4 - 4.2" alt="8.4 - 4.2" align="absmiddle

STALIN [3.7K]

Answer:

4.2

Step-by-step explanation:

$\mathrm{Write\:the\:numbers\:one\:under\:the\:other,\:line\:up\:the\:decimal\:points.}$

$\mathrm{Add\:trailing\:zeroes\:so\:the\:numbers\:have\:the\:same\:length.}$

$\begin{matrix}\space\space&8&.&4\\ -&4&.&2\end{matrix}$

$\mathrm{Subtract\:each\:column\:of\:digits,\:starting\:from\:the\:right\:and\:working\:left}$

$\mathrm{In\:the\:bolded\:column,\:subtract\:the\:second\:digit\:from\:the\:first}:\quad \:4-2=2$

$\frac{\begin{matrix}\space\space&8&.&\textbf{4}\\ -&4&.&\textbf{2}\end{matrix}}{\begin{matrix}\space\space&\space\space&\space\space&\textbf{2}\end{matrix}}$

$\mathrm{Place\:the\:decimal\:point\:in\:the\:answer\:directly\:below\:the\:decimal\:points\:in\:the\:terms}$

$\frac{\begin{matrix}\space\space&8&\textbf{.}&4\\ -&4&\textbf{.}&2\end{matrix}}{\begin{matrix}\space\space&\space\space&\textbf{.}&2\end{matrix}}$

$\mathrm{In\:the\:bolded\:column,\:subtract\:the\:second\:digit\:from\:the\:first}:\quad \:8-4=4$

$\frac{\begin{matrix}\space\space&\textbf{8}&.&4\\ -&\textbf{4}&.&2\end{matrix}}{\begin{matrix}\space\space&\textbf{4}&.&2\end{matrix}}$

$=4.2$

3 0

2 years ago

Help please I need help

Eddi Din [679]

Answer:

x = 5/13

Step-by-step explanation:

$x+\dfrac{2}{13}=\dfrac{7}{13}\\\\ x+\dfrac{2}{13}-\dfrac{2}{13}=\dfrac{7}{13}-\dfrac{2}{13}\\\\x+0=\dfrac{7-2}{13}\\\\\boxed{x=\dfrac{5}{13}=0.38462}$

7 0

3 years ago

Directions: Graph each function and give its key characteristics. Use a graphing calculator for the turning points and round to

skad [1K]

Answer:

for example, if f(x)= x^2 + 3

and they gave write f(5)= 5^2 +3

=25+3=28

3 0

2 years ago