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3 years ago

Pls help extra points.

Mathematics

1 answer:

Tema [17]3 years ago

7 0

It is 0 because 0x0x0x0 = 0

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Use the Law of Sines to find the length of DE to the nearest tenth of an inch.

Alex

Angle E = 180 -45 -63 = 72 degrees
Using the Law of Sines
FD / sine (E) = ED / sine (63)
3.8 / 0.95106 = ED / 0.89101
side DE = 3.8 * .89101 / .95106
side DE = 3.5600677139 

Source:
http://www.1728.org/trigtut2.htm

3 0

4 years ago

Which of the following statements is true

kolbaska11 [484]

Answer:

D. This quadratic equation two complex solutions.

Step-by-step explanation:

$5x^2 +6x +2= 0\\$

Equating it with

$ax^2 +bx +c= 0\\$

a = 5, b = 6, c = 2

$b^2 -4ac\\= 6^2 - 4\times 5\times 2\\= 36-40\\b^2 -4ac= - 4\\$

$\because b^2 -4ac$ is negative.

Therefore, this quadratic equation two complex solutions.

5 0

3 years ago

Given that f(x) = 10x + 45, find f(7)

sattari [20]

Answer:

$\boxed{\bf f(x) = 115}$

Step-by-step explanation:

Given polynomial function :-

$f(x) = 10x + 45$

To find :-

$\sf \: f(7)$

Solution:-

$\sf \implies \: f(x) = 10x + 45$

Here, the value of x is 7(given).

So, Substitute the value of x on the RHS and on LHS :-

$\sf \implies{f}(“7”) = 10(“7”) + 45$

Simplify the RHS:-

Multiply 10 and 7 :-

$\sf \implies{f}(7) = 10 \times 7 + 45$

$\sf \implies{f}(7) = 70 + 45$

Add 70 and 45 :-

$\sf \implies{f}(7) = 115$

We're done!

Hence, the value of f(7) would be,

$\sf \implies{f}(7) = 115$

$\rule{225pt}{2pt}$

I hope this helps!

Let me know if you have any questions.

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3 years ago

David buys a bicycle that is on sale for 20% off the original price. The discounted price is $80 less than the original price. W

Ludmilka [50]

The original price of the bicycle is $400.

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4 years ago

On Friday,

dimaraw [331]

I would make both denominators the same, and the lowest one that works is 18. So I'd make 1/9 into 2/18, and 1/6 into 3/18. They already used these times so combine them to make 5/18 then subtract that from the total time they had (18/18) and you would get 13/18 they spent playing music.

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3 years ago