Write an equation you can use to solve for x. I need 1-7 answered. I don't understand this

The given graph shows that the function is periodic and fluctuates between y = -2 and y = 2. So, the range of the function is [-2,2].

The graph covers one period, which is from x = -3 to x = 3, and then repeats itself indefinitely in both directions. So, the domain of the function is (-∞, ∞).

In general, the domain of a function consists of all the possible input values that the function can take. In this case, since the function repeats itself indefinitely, it can take any input value from negative infinity to positive infinity.

So, the domain is (-∞, ∞). The range of a function, on the other hand, consists of all the possible output values that the function can produce.

In this case, the function oscillates between y = -2 and y = 2, so the range is [-2,2]. The interval notation for the domain is (-∞, ∞) and for the range is [-2,2].

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The width of the field is 230 feet and the length is 310 feet.

Let's denote the width of the field as "x" feet.

The length of the field is 80 feet longer than the width, so it can be represented as "x + 80" feet.

To find the total amount of fencing material needed, we sum up the lengths of all four sides of the rectangular field:

2(length) + 2(width) = perimeter

Substituting the given values:

2(x + 80) + 2(x) = 1080

2x + 160 + 2x = 1080

4x + 160 = 1080

4x = 920

x = 920/4

x = 230

Therefore, the width of the field is 230 feet.

Now we can find the length by adding 80 feet to the width:

Length = Width + 80 = 230 + 80 = 310 feet.

So, the width of the field is 230 feet and the length is 310 feet.

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Answer:

The interior angles of a triangle are inside the triangle and add up to 180 degrees. The exterior angles are angles between any side of the triangle, and the line extended from the side. The sum of an exterior angle and its adjacent interior angle is also 180 degrees.

Answer:

-18

Step-by-step explanation:

Answer:

275.15

Step-by-step explanation:

312.67 * 12% = 37.52

312.67 - 37.52 = $275.15

The length of the hypotenuse in this problem is given as follows:

h = 10.6 m.

The Pythagorean Theorem states that in the case of a right triangle, the square of the length of the hypotenuse, which is the longest side,  is equals to the sum of the squares of the lengths of the other two sides.

Hence the equation for the theorem is given as follows:

c² = a² + b².

In which:

The side lengths for this problem are given as follows:

7m and 8m.

Hence the hypotenuse is obtained as follows:

h² = 7² + 8²

\(h = \sqrt{7^2 + 8^2}\)

h = 10.6 m.

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Complete Question

Educational Television In a random sample of 200 people, 159 said that they watched educational television. Find the 90% confidence interval of the true proportion of people who watched educational television. Round the answers to at least three decimal places.

Answer:

The 90% confidence interval is   \(0.748  <  p <  0.842\)      

Step-by-step explanation:

From the question we are told that

     The sample size is  n = 200

     The number of people that watched the educational television is \(k = 159\)

Generally the sample proportion is mathematically represented as

               \(\^ p = \frac{159}{200}\)

=>               \(\^ p = 0.795\)

From the question we are told the confidence level is  90% , hence the level of significance is    

      \(\alpha = (100 - 90) \%\)

=>   \(\alpha = 0.10\)

Generally from the normal distribution table the critical value  of  \(\frac{\alpha }{2}\) is  

   \(Z_{\frac{\alpha }{2} } =  1.645\)

Generally the margin of error is mathematically represented as  

     \(E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} } \)

=>     \(E =  1.645  * \sqrt{\frac{0.795 (1- 0.795)}{200} } \)

=>     \(E = 0.04696 \)

Generally 95% confidence interval is mathematically represented as  

      \(\^ p -E <  p <  \^ p +E\)

=>    \(0.795  -0.04696  <  p <  0.795 + 0.04696\)

=>    \(0.748  <  p <  0.842\)      

Answer:

x - 9

Step-by-step explanation:

First, distribute:

-3x - 9 + 4x

Then, simplify (add up x):

x - 9

And we're done ^^

Answer:

-3x -9 +4x

-3x + 4x - 9

x - 9

The answer is x - 9

you multiply -3 by x - 3

And there you go .

Money Keith made from washing cars

= $93 - $15

= $78

Answer: 17%

Step-by-step explanation: 83+17 = 100, 17/100 = 0.17 = 17%

Answer:

To convert pounds to rands, you need to know the current exchange rate between the two currencies. Once you have the exchange rate, you can multiply the number of pounds by the exchange rate to get the equivalent amount in rands.

For example, if the exchange rate is 1 GBP = 20 ZAR and you want to convert 100 pounds to rands, you would multiply 100 by 20, which equals 2000 rands.

Step-by-step explanation:

Answer:

COST PRICE=1250+250=1500

SELLING PRICE=1600

GAIN=1600-1500=100

GAIN PERCENT=>

Step-by-step explanation:

I HOPE ITS HELP YOU

The tangent line at that point is:

y = (-3/25)*x + 6/5

so m = -3/25, and b = 6/5

To find the slope at that point, we need to evaluate the derivative at that point.

y = 3/x

The derivative is:

y' = -3/x²

When x = 5, we have:

y' = -3/5² = -3/25

So that is the slope, m.

Now let's find the line.

The line must pass trhough the point (5, 3/5), then:

3/5 = (-3/25)*5 + b

3/5 = -3/5 + b

3/5 + 3/5 = b

6/5 = b

The equation of the line is:

y = (-3/25)*x + 6/5

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Answer:

Exact: 3 2/9

Estimated: 3

Step-by-step explanation:

1/3=3/9, so just convert it to that, then do some simple subtraction.

Answer:

a

Step-by-step explanation:

Answer:

It's unfactorable

Step-by-step explanation:

x² - 8x - 16 is already in its simplest form. You cannot take GCF or x out. Also, nothing multiplies to -16 and adds up to -8.

Answer: unfactorable

Step-by-step explanation: To factor x² - 8x - 16, we set up our two binomials with x and x as the first position in each binomial.

To fill the second position, we want to

look for factors of -16 that add to -8.

Factors of -16

+16 · -1

-16 · +1

+8 · -2

-8 · + 2

+4 · -4

So what pair of factors add to -16.

Well, none of them do.

When that happens, we say that the original

trinomial is unfactorable and that's your answer.

The statements about the relationship which are true are:

The equation given is;

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The line slants downward from left to right, indicating that as x increases, y decreases.

The given linear equation is -x = 2y + 1. To represent this equation graphically, we need to rearrange it into the slope-intercept form, which is y = mx + b, where m represents the slope and b represents the y-intercept.Rearranging the given equation, we get:2y = -x - 1

Dividing both sides by 2:y = (-1/2)x - 1/2

The slope of the line is -1/2, which means that for every unit increase in x, y decreases by 1/2 unit. The y-intercept is -1/2, indicating that the line intersects the y-axis at (0, -1/2).

Based on this information, the best graph that represents the linear equation y = (-1/2)x - 1/2 is a straight line with a negative slope of -1/2, starting at the point (0, -1/2) and extending infinitely in both directions.

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Yes because if you do 19.99 times 6 you get 119.94

One of the Possible values of length and width of the prism are 15 cm and 0.5 cm

In geometry, a prism is a polyhedron comprising an n-sided polygon base, a second base which is a translated copy of the first, and n other faces, necessarily all parallelograms, joining corresponding sides of the two bases.

Given here: The volume of the prism is 2¹/₂=2.5 cm³

And the height is 1/3 cm

let the length and breadth of the prism is x and y respectively.

We know the volume of the prism as

1/3 × x×y=2.5

x×y=7.5

Thus possible values of length and breadth are the factors of 7.5

out of which one of the pair whose length is 15 cm and width 0.5 cm

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To find the probability that Naomi selects both white balls, we need to consider the total number of possible outcomes and the number of favorable outcomes.

Total number of outcomes:

Naomi selects 2 balls without replacement, so the total number of outcomes is the number of ways she can choose 2 balls out of the total number of balls in the bag. This can be calculated using combinations:

Total outcomes = C(20, 2) = (20!)/(2!(20-2)!) = (20 * 19)/(2 * 1) = 190

Number of favorable outcomes:

Naomi needs to select 2 white balls. There are 2 white balls in the bag, so the number of favorable outcomes is the number of ways she can choose 2 white balls out of the 2 white balls in the bag:

Favorable outcomes = C(2, 2) = 1

Probability = Favorable outcomes / Total outcomes = 1/190

Therefore, the correct answer is (G) 1/190.

Answer:

The first one is correct

Step-by-step explanation:

ITs all good

ANSWER

EXPLANATION

To find the number of square feet the window requires, we have to find the area of the shape.

The shape given is a kite, and the area of a kite is:

where p and q are the diagonal lengths.

From the question given:

Therefore, the area of the kite is:

That is the number of square feet of glass that the window requires.

Answer:

Step-by-step explanation:

→ (7*4-4³)/6

→ (28-64)/6

→ -36/6

→ -6

Answer:

Step-by-step explanation:

Answer: Box #1 has a greater volume and would hold more than Box #2.

Step-by-step explanation: To determine which box would hold more, we need to calculate the volume of each box.

The volume of Box #1 is:

48 cm x 22 cm x 30 cm = 31,680 cubic cm

The volume of Box #2 is:

32 cm x 18 cm x 40 cm = 23,040 cubic cm

Therefore, Box #1 has a greater volume and would hold more than Box #2.

Answer: y= -2/5x + 2

Step-by-step explanation:

Y= Mx + b

M is the slope

B is the y intercept

The y intercept will be out on the y axis

The slope will be rise over run ( do you first then do to the right!)

Answer:

Number 5. = 69

Number 8. = 19

Step-by-step explanation: