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Hoochie [10]
3 years ago
8

Seventh grade) R.14 Add and subtract line Simplify the expression: 10(4 + 2y) Submit​

Mathematics
1 answer:
yarga [219]3 years ago
7 0
10* 4 = 40
10* 2y= 20y
40+20y

if the question meant expand
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What is the trigonometric ratio for cosn? enter your answer, as a simplified fraction, in the boxes. $$ triangle l m n with righ
hjlf

The trigonometric ratio will be Cos(n)=12/13

<h3>What will be the trigonometry ratio?</h3>

Given is a Right triangle LMN with right angle at M i.e. angle M = 90 degrees.

Given are the sides LM = 15, MN = 36, and LN = 39.

It says to find cos(n) = ?

So opposite side would be LM, adjacent side would be MN, and LN is the hypotenuse.

We know that the cosine ratio is given by :-

Cos(n)=\dfrac{adjacent}{Hypotenuse}

Cos(n)=\dfrac{MN}{LN}

Cos(n)=\dfrac{36}{39}

Cos(n)=\dfrac{12}{13}

Hence the required ratio will be   Cos(n)=\dfrac{12}{13}

To know more about trigonometry, follow

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3 0
2 years ago
the price of an item has increased 15% since last year. However l a person can buy the item for a 25%employee discount. The empl
Fiesta28 [93]

Let us assume last year the price of the item = $x.

After increase in price by 15% the new price = x + 15% of x = x+ 0.15x = 1.15x.

There is a 25% discount for employee.

25% of 1.15x = 0.25 × 1.15x = 0.2875 x.

Price after discount = 1.15x - 0.2875 x = 0.8625x.

The employee pays $172.50.

Therefore,

0.8625x = 172.50.

Dividing both sides by 0.08625.

\frac{0.8625x }{ 0.8625} =\frac{172.50}{0.8625}

<h3>x=200.</h3><h3>Therefore, last year the price was $200.</h3>
8 0
3 years ago
Floats in a parade travel down the 5.5 mile long street at a rate of 2.5 miles per hour. How long will it take the floats to com
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It should take 2.2 hours, since 5.5 / 2.5 = 2.2.
6 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST!
storchak [24]

Answer:

it 20 chews 5 over 20 chews 10

= 20! / (20-5)! times 5!  over 20! / (20-10)! times 10!

=15504/ 184756= .08 or 8%

Step-by-step explanation:

have a good day/night

may i please have a branllliest

sorry if wrong :(

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3 years ago
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