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2 years ago

HURRY PLEASE! Evaluate –5u for u = –4.

Mathematics

1 answer:

Reptile [31]2 years ago

3 0

$\huge\text{Hey there!}$

$\huge\textsf{-5u}$

$\huge\textsf{= -5(-4)}$

$\huge\textsf{= 5(4)}$

$\huge\textsf{= 20}$

$\boxed{\boxed{\huge\text{Therefore, your answer is: \textsf{20}}}}\huge\checkmark$

$\huge\textsf{Good luck on your assignment \& enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

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What is the answer to 2×[4×(2+1)×3] And how did you get it

ira [324]

Answer is 72

Step by step

Using order of math rules of PEMDAS, we do the inner parentheses “P” first, working outwards with parentheses and then exponents, multiply and divide, add and subtract.

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11 months ago

Suppose a country has a population of 34,782,000 and an area of 7,539,000 square miles. Find the population density (people per

Naddika [18.5K]

Answer:

The population density (people per square mile) for the country is 5 person per square mile.

Step-by-step explanation:

Given:

Population of the country = 34,782,000

Area of the country = 7,539,000

To Find:

The population density of the country = ?

Solution:

The population density is the number people per square mile.

The population density can be found by

$\text{population density} = \frac{ \text{number of people in the country}}{\text { The area of the country}}$

On Substituting the values

population density = $\frac{34,782,000}{7,539,000}$

Population density = 4.61

Population density = 5

6 0

3 years ago

All you need is in the photo I DON'T WANT STEP BY STEP ANSWER FAST please fdsd

Brut [27]

We have the following:

$\begin{gathered} x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a} \\ a=5 \\ b=0 \\ c=-80 \end{gathered}$

replacing:

$\begin{gathered} x=\frac{-0\pm\sqrt[]{0^2-4\cdot5\cdot-80}}{2\cdot5}=\frac{\pm\sqrt[]{1600}}{10}=\frac{\pm40}{10}=\pm4 \\ x_1=4 \\ x_2=-4 \end{gathered}$

6 0

10 months ago