All categories

3 years ago

Help pleaseeeeeeee :’)

Mathematics

1 answer:

kompoz [17]3 years ago

3 0

Answer:

the time taken is 22 mins

You might be interested in

Solve for the roots in the equation below. In your final answer, include each of the necessary steps and calculations. Hint: Use

AveGali [126]

Answer: 3

<u>Step-by-step explanation:</u>

$x^3-27=0\\\\x^3=27\\\\\sqrt[3]{x^3}=\sqrt[3]{27}\\\\x=\sqrt[3]{3\cdot 3\cdot 3} \\\\x=3$

6 0

3 years ago

Solve the inequality: 14-0.6t>2

Mazyrski [523]

Answer:

t > 20

Step-by-step explanation:

14 - 0.6t > 2

14 - 14 - 0.6t > 2 - 14

- 0.6t > - 12

- 0.6t ÷ - 0.6 > - 12 ÷ - 0.6

t > 20

8 0

3 years ago

Read 2 more answers

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

A box of chocolates weighs 226. 8 grams and costs $14. 99. If 1 ounce is approximately 28. 35 grams, what is the unit price per

BARSIC [14]

Divide total grams by 28.35 to get ounces:

226.8 / 28.35 = 8 ounces

Divide cost by ounces:

14.99 / 8 = 1.87

ANSWER: C. $1.87

6 0

3 years ago

What is the vertex of function f(x)=(x-3)(x+5)?

butalik [34]

Answer:

( − 1 , − 16 )

Step-by-step explanation:

6 0

3 years ago