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zimovet [89]
2 years ago
6

Urgent!! Math help!!

Mathematics
1 answer:
Sindrei [870]2 years ago
8 0

Answer/Step-by-step explanation:

Problem 1:

Reference angle = 36°

Opposite = x

Adjacent = 7

Thus, apply trigonometric ratio as follows:

tan 36 = x/7

Multiply both sides by 7

7 × tan 36 = x

x = 5.09 (nearest hundredth)

Problem 2:

Reference angle = 63°

Opposite = 12

Hypotenuse = x

Thus, apply trigonometric ratio as follows:

Sin 63 = 12/x

Make x the subject of the formula

x = 12/sin 63

x = 13.47 (nearest hundredth)

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9. Find the slope of a line parallel to 3x - y = 1.​
Vadim26 [7]

Answer:

slope = 3

Step-by-step explanation:

The slope of a line parallel to the given equation share the same slope. Note the slope intercept formula:

y = mx + b

y = (x , y)

m = slope

x = (x , y)

b = y-intercept

First, isolate the variable, y. Subtract 3x from both sides:

3x (-3x) - y = 1 (-3x)

-y = -3x + 1

Next, divide -1 from both sides:

(-y)/-1 = (-3x + 1)/-1

y = 3x - 1

You are solving for the slope of a line parallel to the given equation. Since you are solving for parallel, the slope would be shared.

3 would be the slope of the line.

~

3 0
3 years ago
I need help with all these 5 questions please please help me with these questions
nasty-shy [4]

Answer:

1. (4,5)  2. D  3. J  4.D  5. 64.8 oz

Step-by-step explanation:

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5 0
2 years ago
What is the additive inverse of -7<br><br> -7<br> 7<br> -|-7|<br> -(-(-7))<br> Please help
Daniel [21]
The additive inverse of -7 is 7, the additive inverse of a number is when added to any number equals 0. So the additive inverse of -14=14 and 7=-7.
5 0
3 years ago
Read 2 more answers
Which equation shows the inverse property of multiplication? 4 + (-4) = 0 -8 + (-3) = -3 + (-8)
andreev551 [17]
I think it's one of the last 2 they equal the same thing, so -8+(-3) is the answer.
6 0
3 years ago
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Mark and Julio are selling flower bulbs for a school fundraiser. Customers can buy bags of windflower bulbs and packages of croc
ikadub [295]

Answer:

Bag of windflower bulbs costs $8.50

Package of crocus bulbs costs $17.60

Step-by-step explanation:

Let $x be the price of one bag of windflower bulbs and $y be the price of one  package of crocus bulbs.

1. Mark sold 2 bags of windflower bulbs for $2x and 5 packages of crocus bulbs for $5y. In total he earned $(2x+5y) that is $105. So,

2x+5y=105

2. Julio sold 9 bags of windflower bulbs for $9x and 5 packages of crocus bulbs for $5y. In total he earned $(9x+5y) that is $164.50. So,

9x+5y=164.50

3. You get the system of two equations:

\left\{\begin{array}{l}2x+5y=105\\ \\9x+5y=164.50\end{array}\right.

From the first equation

5y=105-2x

Substitute it into the second equation:

9x+105-2x=164.50

7x=164.50-105

7x=59.5

x=$8.50

So,

5y=105-2·8.5

5y=105-17

5y=88

y=$17.60

5 0
3 years ago
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