The map of a town is placed on a coordinate grid. Use the map to find

Mathematics

1 answer:

Anarel [89]3 years ago

5 0

-4 , -8 because -4 is on the x axis and -8 is on the y axis

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5. 3 - 3x – 3 + 2x = -4x + 3x I need help! Can someone please solve x for me! I don't know what to dooo

alina1380 [7]

Answer:

x = 3.5

Step-by-step explanation:

3 - 3x - 3 + 2x = 4x + 3x

-x = 7x

2x = - 7

x = 7/2

x = 3.5

4 0

3 years ago

The current (I) varies directly as the voltage (V) in an electric circuit. If the current is 4 amperes when the voltage is 100 v

Margarita [4]

$\bf \begin{array}{cccccclllll}
\textit{something}&&\textit{varies directly to}&&\textit{something else}\\ \quad \\
\textit{something}&=&{{ \textit{some value}}}&\cdot &\textit{something else}\\ \quad \\
y&=&{{ k}}&\cdot&x
\\
&& y={{ k }}x
\end{array}\\\\
-----------------------------\\\\$

$\bf \textit{l varies directly to V}\implies l=kV
\\\\\\
\textit{now, we also know that }
\begin{cases}
l=4\\
V=100
\end{cases}\implies 4=k100
\\\\\\
\cfrac{4}{100}=k\implies \cfrac{1}{25}=k\impliedby \textit{constant of variation}
\\\\\\
thus\implies l=\cfrac{1}{25}V
\\\\\\
\textit{what is the current when the voltage is 75?}\qquad l=\cfrac{1}{25}\cdot 75$

6 0

3 years ago

Use the cubic model y = 5x3 to estimate the value of y when x = 8.

Ksivusya [100]

Answer:

The value would be 2560.

Step-by-step explanation:

In order to evaluate this expression, simply put the 8 in for x and simplify.

y = 5x^3

y = 5(8)^3

y = 5(512)

y = 2560

4 0

3 years ago

An airplane is flying at a height of 5 kilometers above the ground. The distance along the ground from the airplane to the airpo

Cerrena [4.2K]

$\rule{70mm}{2.9pt}$

$\large \sf{✟ \: Problem \: ✟} :$

An airplane is flying at a height of 5 kilometers above the ground. The distance along the ground from the airplane to the airport is 7 kilometers. What is the angle of depression from the airplane to the airport? (Write the answer to the nearest degree.)

$\rule{70mm}{2.9pt}$

$\large \sf{✟ \: Solution \: ✟} :$