3 years ago

HELP GIVING BRAINLIEST Find the solution to the following system using substitution or elimination:

Mathematics

1 answer:

Kryger [21]3 years ago

8 0

Answer:

it is B

Step-by-step explanation:

please can i have brainliest

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HELP PLEASE!!!!!! I will give anyone who knows the answer a brainliest!

vredina [299]

$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
H&({{ 10}}\quad ,&{{ 1}})\quad 
% (c,d)
K&({{ 4}}\quad ,&{{ 7}})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)$

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3 years ago

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Starting with the definition 1.00in. = 2.54 cm, find the number of kilometers in 7.00mi . Please describe conversions.

ella [17]

The answer is 11.265408 km.

To calculate the number of kilometers, we will use several conversions:
A) 1 mi = 63,360 in
B) 1 in = 2.54 cm
C) 1 cm = 0.00001 km

A) 1 mi = 63,360 in
7 mi = 63,360 in · 7 = 443,520 in

B) 1 in = 2.54 cm
443,520 in = 2.54 cm · 443,520 = 1,126,540.80 cm

C) 1 cm = 0.001 km
1,126,540.80 cm = 0.00001 km · 1,126,540.80 = 11.265408 km

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3 years ago

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Find the inverse of function f. f(x) = 1/2x +7 / <img src="https://tex.z-dn.net/?f=f%28x%29%3D%5Cfrac%7B1%7D%7B2%7Dx%20%2B%207"

kvasek [131]

The answer is C.) f^-1 (x) = 2x- 14 / $\:f^{-1\:}\left(x\right)=2x\:-\:14$