Please help me please

HELPPPPPP!! ASAPPP!!! PLEASE!! WILL GIVE EXTRA POINTS! 4.8 4 8 7.2

vivado [14]

Answer:

x = 4

Step-by-step explanation:

180° - 114° = 66°

15x - 6 = 66

15(4) - 6 = 66

60 - 6 = 54

Statement is wrong because we can see another angle. so...

Final answers: x = 4 while 54 + 114° = 168° then 180° - 168° = 12°

6 0

3 years ago

I really need help with this trigonometric function, i am struggling and it would mean a lot.

AURORKA [14]

Answer:

should be 22.5 for the first one and 324 for the second

Step-by-step explanation:

pi = 180° so you can take the multiplier by pi and switch pi to be 180

7 0

3 years ago

Can somebody help me with all three problems please

Lerok [7]

1. $x^{2} -10x +25 = 0$

These two numbers are: -5 and -5

-5 + (-5) = -10

-5 * -5 = 25

so...

(x - 5)(x - 5)

To find the roots set the factored numbers equal to zero and solve for x:

x - 5 = 0

x = 5

2. $x^{2} + 9x = -14$

This equation needs to be equal to zero, so bring -14 to the other side by adding 14 to both sides

$x^{2}+9x+14 =0$

Find two numbers that the sum is equal to 9 AND the multiplication of the numbers is 14

These numbers are 7 and 2

7 + 2 = 9

7*2 = 14

so...

(x + 2) (x + 7)

To find the roots set the each of the factored numbers equal to zero and solve for x:

x + 2 = 0

x = -2

x + 7 = 0

x = -7

3. $3x^{2} = 6x$

This equation needs to be equal to zero, so bring 6x to the other side by subtracting 6x to both sides

$3x^{2} -6x = 0$

In this equation you can factor out a 3 and an x:

3x (x - 2)

To find the roots set the each of the factored numbers equal to zero and solve for x:

3x = 0

3x/3 = 0/3

x = 0

x - 2 = 0

x = 2

Hope this helped!

8 0

4 years ago

Dean spent two hours watching television and decided to keep track of the amount of time spent on commercials. He was surprised

Gelneren [198K]

I believe it should be about 40% because you divide 120min(2hrs) by 48min and get 2.5 then you divide 100 by 2.5 and get 40%

6 0

3 years ago

Determine whether the quantitative variable is discrete or continuous. Depth of the ocean floor Is the variable discrete or cont

Vesna [10]

Answer:

B. The variable is continuous because it is not countable.

Correct, from the definition about of continuous data we see that is a random variable is continuous then it can't be countable.

Step-by-step explanation:

Previous concepts

A discrete random variable "has a countable number of possible values" in a domain defined. So then the possible values for these types of random variables are the integers.

A continuous is a random variable "where the data can take infinitely many values" that means that can take values from the rational with decimals. Ans is not countable.

Solution to the problem

Let's analyze one by one the possible options:

A. The variable is discrete because it is countable.

False, the depth of the ocean is a continuous random variable since we can have for exampe a depth of 1200.56 mi and we can't express this as a discrete random variable.

B. The variable is continuous because it is not countable.

Correct, from the definition about of continuous data we see that is a random variable is continuous then it can't be countable.

C. The variable is discrete because it is not countable.

False, the depth of the ocean is a continuous random variable since we can have for exampe a depth of 504.67 Km and we can't express this as a discrete random variable.

D. The variable is continuous because it is countable.

False the variable is continuous but cannot be countable since that's the opposite from the definition of continuous random variable.

6 0

3 years ago