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3 years ago

Find the product of 2 and 500.

Mathematics

1 answer:

Ilya [14]3 years ago

6 0

The answer is 1,000. 500(2)= 1000

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What is the value of n in the equation 2n+19=21

dimaraw [331]

Step-by-step explanation:

$2n + 19 = 21$

$2n = 21 - 19$

$2n = 2$

$n = 2 \div 2$

Therefore, N = 1

hope it helps don't forget to like and mark me down

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3 years ago

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I suck at graphs HELP ASAP QUESTION BELOW

kakasveta [241]

ANSWER

A (-∞,-2)

B (0,4).

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7 0

3 years ago

A rectangular parking lot must have a perimeter of 440 feet and an area of at least 8000 square feet. Describe the possible leng

tangare [24]

Answer:

The possible parking lengths are 45.96 feet and 174.031 feet

Step-by-step explanation:

Let x be the length of rectangular plot and y be the breadth of rectangular plot

A rectangular parking lot must have a perimeter of 440 feet

Perimeter of rectangular plot =2(l+b)=2(x+y)=440

2(x+y)=440

x+y=220

y=220-x

We are also given that an area of at least 8000 square feet.

So, $xy \leq 8000$

So, $x(220-x) \leq 8000$

$220x-x^2 \leq 8000$

So, $220x-x^2 = 8000\\-x^2+220x-8000=0$

General quadratic equation : $ax^2+bx+c=0$

Formula : $x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}$

$x=\frac{-220 \pm \sqrt{220^2-4(-1)(-8000)}}{2(-1)}\\x=\frac{-220 + \sqrt{220^2-4(-1)(-8000)}}{2(-1)} , \frac{-220 - \sqrt{220^2-4(-1)(-8000)}}{2(-1)}\\x=45.96,174.031$

So, The possible parking lengths are 45.96 feet and 174.031 feet

3 0

3 years ago

For each triangle, find the missing side length to the nearest tenth. :

Lana71 [14]

We can use trigonometry. The cosine of 15 will be the side adjacent to the 15-degree side (the one we are looking for) divided by 20, the hypotenuse. As cos(15) is about .966, we get 19.32 as the side we are looking for.

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4 years ago