1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Irina-Kira [14]
2 years ago
9

Pls help Asap I mark u brainliest

Mathematics
1 answer:
Taya2010 [7]2 years ago
4 0
The answer is B i did this before hope this helps
You might be interested in
5sin²α+3cos²α / 3sin²α-5cos²α = <br> if tgα=√2
fiasKO [112]
Tgα = tan(α) = sqrt(2)/1 = opposite/ adjacent
opposite = sqrt(2)
adjacent = 1
hypotenuse = sqrt(opposite^2 + adjacent^2)
= sqrt(sqrt(2)^2 + 1^2) = sqrt(3)

sin(α) = opposite/hypotenuse
= sqrt(2)/sqrt(3)

cos(α) = adjacent/hypotenuse
= 1/sqrt(3)

now we can calculate the value of
5sin²α+3cos²α / 3sin²α-5cos²α
... do the math
8 0
3 years ago
A tennis coach took his team out for lunch and bought 8 hamburgers and 5 fries for $24. The players were still hungry so the coa
g100num [7]

The cost of 1 hamburger is $ 2.5 and cost of 1 fries is $ 0.8

<h3><u>Solution:</u></h3>

Let "f" be the cost of 1 fries

Let "h" be the cost of 1 hamburger

<em><u>Given that, tennis coach took his team out for lunch and bought 8 hamburgers and 5 fries for $24</u></em>

8 x cost of 1 hamburger + 5 x cost of 1 fries = 24

8 \times h + 5 \times f = 24

8h + 5f = 24 -------- eqn 1

<em><u>The players were still hungry so the coach bought six more hamburgers and two more fries for $16.60</u></em>

6 x cost of 1 hamburger + 2 x cost of 1 fries = 16.60

6 \times h + 2 \times f = 16.60

6h + 2f = 16.60 ------ eqn 2

<em><u>Let us solve eqn 1 and eqn 2</u></em>

Multiply eqn 1 by 2

16h + 10f = 48 ------ eqn 3

Multiply eqn 2 by 5

30h + 10f = 83 -------- eqn 4

<em><u>Subtract eqn 3 from eqn 4</u></em>

30h + 10f = 83

16h + 10f = 48

( - ) ----------------------

14h = 35

<h3>h = 2.5</h3>

Substitute h = 2.5 in eqn 1

8(2.5) + 5f = 24

20 + 5f = 24

5f = 4

<h3>f = 0.8</h3>

Thus cost of 1 hamburger is $ 2.5 and cost of 1 fries is $ 0.8

5 0
3 years ago
What is 57,910,000 in scientific notation
Alexandra [31]
Are there options to this?
5 0
3 years ago
Read 2 more answers
Simplify the following expression.<br><br> √49^8
hoa [83]

Answer:

First calculate 49^8

Then take the square root of that answer.

Final answer is 5,764,801

7 0
3 years ago
In a sample of 11 men, the mean height was 178 cm. In a sample of 30 women, the mean height was 167 cm. What was the mean height
Anvisha [2.4K]

Answer:

I'm pretty sure it would be 345, just add the two 178 and 167

5 0
3 years ago
Other questions:
  • (Please help) Which answer describes the polynomial?
    15·1 answer
  • Which of the following ratios are equivalent ratios to 12:14?
    13·2 answers
  • About how much more money is spent on strawberry and grape jelly than other types of jelly if strawberry and grape jelly is 366.
    11·1 answer
  • What does the expression look like when we substitute the given values for x, y, and z into the expression?
    6·1 answer
  • Joshua uses a rule to write the following sequence of numbers 1/6,1/2,5/6,----------,11/2 What rule did Joshua use? What is the
    7·2 answers
  • A moon is about 420000 miles away from it orbits.
    8·1 answer
  • Simplify the expression.<br><br> (6g)^3
    7·2 answers
  • Isabella is travelling in Brazil during the summer, She knows that a 15-minute phone call home to her family costs $45.85 and a
    12·1 answer
  • Divide using a common factor of 2 to find an equivalent fraction for 2/6
    15·1 answer
  • A discounted concert ticket costs $14.50 less than the original price p. You pay $53 for a discounted ticket. Write an equation
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!