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3 years ago

Another trigonometry question i just want this test to be over >-

Mathematics

1 answer:

Hitman42 [59]3 years ago

4 0

Answer:

e) cos(90-x)

Step-by-step explanation:

sinx=cos(90-x)

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To calculate the area of a triangle, you find the product of the base and height and then divide by two

SIZIF [17.4K]

Answer:

True

Step-by-step explanation:

Hope this helps! :)

4 0

3 years ago

Find the most important variable in the problem.

natali 33 [55]

Answer:

Step-by-step explanation:

Let

x = the number of phone available

If it would require 8 more phones, then the total number of phones will be x + 8.

A company hired an additional 12 employees, and every employee needed a phone, then

x + 8 = 12

x = 4

This means 4 phones were available (and 8 more needed to total in 12 phones for 12 new employees)

Hence, correct option is option A.

3 0

4 years ago

What is the ratio of 250 cm to 2 m

Ainat [17]

Answer:

250:2

Step-by-step explanation:

Hope it helps!

4 0

3 years ago

a meal at a restaurant cost $49.28. If the customers leave $8.23 for to determine the tip rate to the nearest whole percent. Wha

Monica [59]

Now, if the customers left 8.23 extra, based on a percentage of the cost of the meal, namely, the 8.23 is a percent of 49.28, then

if we take 49.28 to be the 100%, how much of a percentage is 8.23?

$\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
49.28&100\\
8.23&t
\end{array}\implies \cfrac{49.28}{8.23}=\cfrac{100}{t}\implies t=\cfrac{8.23\cdot 100}{49.28}$

8 0

3 years ago

Which ordered pair is the solution to the system of equations?

d1i1m1o1n [39]

$\begin{cases}-3x+4y=-20\\y=x-4\end{cases}\\\\\\-3x+4(x-4)=-20\\\\-3x+4x-16=-20\\\\x-16=-20\quad|+16\\\\x-16+16=-20+16\\\\\boxed{x=-4}\\\\\\y=x-4\\\\y=-4-4\\\\\boxed{y=-8}$

Answer C.

4 0

3 years ago