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3 years ago

Solve for x. Round to the nearest tenth, if necessary. 1.8 & x

Mathematics

1 answer:

Valentin [98]3 years ago

7 0

Answer:

x ≈ 1.4

Step-by-step explanation:

Using the sine ratio in the right triangle

sin50° = $\frac{opposite}{hypotenuse}$ = $\frac{RS}{RT}$ = $\frac{x}{1.8}$ ( multiply both sides by 1.8 )

1.8 × sin50° = x , then

x ≈ 1.4 ( to the nearest tenth )

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Solve by using the quadratic formula: x2 - 6x + 7 = 0

IgorC [24]

Final Answer: $x = 3 + \sqrt{2}, 3 - \sqrt{2}$

Steps/Reasons/Explanation:

Question: Solve by using the quadratic formula: $x^{2} - 6x + 7 = 0$ .

Step 1: Use the Quadratic Formula.

$x = \frac{6 + \sqrt[2]{2} }{2}, \frac{6 - \sqrt[2]{2} }{2}$

Step 2: Simplify solutions.

$x = 3 + \sqrt{2}, 3 - \sqrt{2}$

~I hope I helped you :)~ The quadratic formulaic is attached in an image.

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3 years ago

1.) For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.

Alex_Xolod [135]

I believe the answer is d, because i cant find a pattern where x and y are directly connected.

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4 years ago

Read 2 more answers

The Hydro water department has a monthly service charge of $13.90 and a volume charge of $1.45 for every 100 cubic feet of water

erik [133]

Answer: A

Step-by-step explanation:

In this question, you can disregard the initial $13.90 cost because we're only looking for an INCREASE in price. If the Johnson family used 200 cubic feet MORE of water, we need to multiply 2 * 1.45 which gets us 2.90. We multiply 2 by 1.45 because 200 represented in x is 2, since x is represented in hundreds.

7 0

4 years ago

The difference of twenty-one and eight times a number n is thiry-five

nalin [4]

Answer:

n=7

Step-by-step explanation:

difference means subtraction so:

8n - 21= 35

8n=35+21

8n= 56

n= 56÷8

n=7

8 0

3 years ago

PLS HELP ILL GIVE BRAINLIEST!

kodGreya [7K]

Hi there.

The answer is g(0) = 3.

Explanation:

Given three functions with specified domains. The first and three functions both do not have x = 0 as a part of the domain. We can clear both functions.

Our main function then is currently —

$g(x) = 3$

You might be wondering how are we gonna find the x-value if there is no x-term?

That is to do nothing. If there is no x-term to substitute then we answer only the constant.

$g(0) = 3$

4 0

3 years ago