20 points?please with explanation​

Answer:

Option D. (2,0)

Step-by-step explanation:

we know that

The graph show a vertical parabola open upward, the vertex represent a minimum

The vertex is the point (2,0)

The vertex of the graph given is located at the point (0,2)

The vertex of a curve is simply given by the maximum or minimum point on the parabolic curve.

For the graph shown, the vertex is the minimum point on the curve. It also represents the highest or lowest point depending on the function.

Hence, the vertex of the curve is (2, 0)

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Step-by-step explanation:

If (p, 0) and (q, 0) are x-intercepts, then p and q are zeros.

The intercept form of an equation of a quadratic function:

y = a(x - p)(x - q)

p, q - x-intercepts (zeros).

We have the equation: y = 2(x + 4)(x - 6) = 2(x - (-4))(x - 6)

Therefore the x-intercepts are -4 and 6.

The zeros are -4 and 6 too.

Answer:

(x + 3)(x + 7)

Step-by-step explanation:

Find two numbers that when added up to , they ALSO have to multiply up to 21. This is simple because of the fact that there is no leading coefficient greater than 1⃣.

Answer:

A.) (x+3)(x+7)

Step-by-step explanation:

Answer:

(x - 2)² + (y - 3)² = 9

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (2, 3) and r = 3, hence

(x - 2)² + (y - 3)² = 9 ← equation of circle

Answer:

2.76

Step-by-step explanation:

you only round up if it is a five or higher

Answer:

Step-by-step explanation:

The thousandth digit is a 4. When you round it, it is under 5 so the 4 is dropped and the result is 2.76

Answer: [tex]\dfrac{9}{10}[/tex]

Step-by-step explanation:

From the table , the total number of numbers = 10

The group of 5 digits contain less than or equal to 2 even digits = 55170

i.e. The total group of 5 digits contain at least 2 =[tex]10-1=9[/tex]

Now, the probability that a group of 5 random digits will contain at least 2

even digits is given by :-

[tex]=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}=\dfrac{9}{10}[/tex]

Hence, the probability that a group of 5 random digits will contain at least 2  even digits [tex]=\dfrac{9}{10}[/tex]

Answer:

the answer is 9/10

Step-by-step explanation:

Answer:

The range of the graph is all real numbers greater than or equal to 0.

Step-by-step explanation:

we have

[tex]y=\sqrt{x}[/tex]

using a graphing tool

The graph in the attached figure

step 1

Find the domain

we know that the radicand of the function must be greater than or equal to zero

so

The domain is the interval ------> [0,∞)

[tex]x\geq0[/tex]

All real numbers greater than or equal to zero

step 2

Find the range

The range is the interval -----> [0,∞)

[tex]y\geq0[/tex]

All real numbers greater than or equal to zero

Answer:3g+20 on edg

Step-by-step explanation:

Since the guests equals g and 3 cups per guest it would be 3g+ extra 20 so the answer would be 3g+20

The probability of drawing three queens in a row from a standard deck of cards, starting with the first card drawn as a queen and with no replacement, is approximately 0.0181% or 0.000181.

The probability of drawing a queen from a deck of 52 cards, given that the first card drawn was a queen and that cards are not replaced, involves a combination of multiplying probabilities for independent events:

To find the total probability of drawing three queens in a row, we multiply these independent probabilities together: (1/13) * (3/51) * (2/50). This totals to approximately 0.000181, or 0.0181%, which is the probability of drawing three queens in a row from a standard deck of cards without replacement after drawing the first queen.

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Answer:

[tex]\large\boxed{a_n=2\cdot(3)^{n-1}}[/tex]

Step-by-step explanation:

[tex]2,\ 6,\ 18,\ 54,\ 162,\ ...\\\\2\cdot3=6\\6\cdot3=18\\18\cdot3=54\\54\cdot3=162\\\vdots\\\\\text{It's a geometric series with common ratio}\ r=3,\ \text{and the first term}\ a_1=2.\\\\\text{The explicit formula of a geometric sequence:}\ a_n=a_1r^{n-1}.\\\\\text{Substitute:}\\\\a_n=2\cdot(3)^{n-1}[/tex]

Final answer:

The explicit formula for the sequence 2, 6, 18, 54, 162, ... is [tex]an = 2 imes 3^(n-1),[/tex] where an represents the nth term of the sequence.

Explanation:

The sequence given is 2, 6, 18, 54, 162, ..., which can be recognized as a geometric sequence. In a geometric sequence, each term after the first is found by multiplying the previous term by a fixed, non-zero number called the common ratio (r). To find the explicit formula for the nth term of a geometric sequence, we use the formula an = a1  imes r(n-1), where a1 is the first term and r is the common ratio.

Looking at our sequence, the first term a1 is 2. The common ratio r can be found by dividing the second term by the first term (or any term by the previous term), which is 6/2 = 3. Now that we have both the first term and the common ratio, we can plug these values into our formula to get the explicit formula for the nth term of the sequence: an = 2  imes 3(n-1).

Answer:

7 : 8

Step-by-step explanation:

Given 2 similar figures with circumference ratio a : b

Then the ratio of the corresponding areas = a² : b²

Here the ratio of areas = 49 : 64

Taking the square root of both gives ratio of circumference

ratio of circumference = [tex]\sqrt{49}[/tex] : [tex]\sqrt{64}[/tex] = 7 : 8

Answer:

Step-by-step explanation:

Mark the given points in the coordinate system (look at the picture).

Find the point D.

Other solutions:

D(-5, 8)

D(7, -2)

Look at the other pictures

If you want calculate it, then:

The vectors AB and DC are congruent and the vectors BC and AD are congruents too.

If a vector ,< a, b > is congruent to a vector < c, d >, then a = c and b = d.

The formula of coordinates of the vetror:

< x₂ - x₁, y₂ - y₁ >

We have A(-2, 4), B(1, 3), C(4, -1) and D(x, y). Substitute:

vector AB = < 1 - (-2), 3 - 4 > = < 3, -1 >

vector DC = < 4 - x, -1 - y >

vector BC = < 4 - 1, -1 - 3 > = < 3, -4 >

vector AD = < x - (-2), y - 4 > = < x + 2, y - 4 >

Therefore we have the equations:

AB = DC ⇒ 4 - x = 3 and -1 - y = -1 ⇒ x = 1 and y = 0

BC = AD ⇒ x + 2 = 3 and y - 4 = -4 ⇒ x = 1 and y = 0

Answer:

False

Step-by-step explanation:

The totals of the rows and columns of a two way table are not called marginal distributions. They are called conditional distributions.

Answer:

She payed $34.60.

Step-by-step explanation:

It cost $19.60, just to rent the bike.

Then multiply $6 × 2 (hours) = 12

Now 6 ÷ 2 = 3 (half hour)

Add 12 + 3 = 15

Add everything together

19.60 + 15

You then get $34.60.

She paid $34.60.

The unitary approach is a strategy for problem-solving that involves first determining the value of a single unit, then multiplying that value to determine the required value.

Given

It cost $19.60, just to rent the bike.

Then multiply $6 × 2 (hours) = 12

Now 6 ÷ 2 = 3 (half hour)

Add 12 + 3 = 15

Add everything together

19.60 + 15

You then get $34.60.

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Final answer:

The function f(x) = 2x^3 – x^2 – 6x is found by factoring the function, resulting in the zeros at x = 0, x = -3/2, and x = 2.

Explanation:

To find the zeros of the function f(x) = 2x^3 – x^2 – 6x, we must set the function equal to zero and solve for x. If possible, this can be done by factoring the function or using synthetic division. In this case, the function can be factored by taking out a common factor of x:

f(x) = x(2x^2 - x - 6) = 0

Next, we can factor the quadratic equation 2x^2 - x - 6 to find the remaining zeros:

2x^2 - x - 6 = (2x + 3)(x - 2)

This gives us the following zeros for the function:

x = 0

x = -3/2

x = 2

Therefore, f(x) has three zeros: 0, -1.5 (or -3/2), and 2.

Answer:

Around $93.65

Step-by-step explanation:

(1 - 37%)(x) = 59

(0.63)(x) = 59

x = 93.65

Final answer:

To find the original price of the printer before a 37% discount, we set up an equation and solve for the original price. After solving, the original price is found to be approximately $93.65.

Explanation:

To calculate the original price of the printer before the discount, we need to understand that the sale price represents 100% - the discount percentage of the original price. Given that the sale price is $59 after a 37% discount, we set up an equation where the original price (which we'll call P) minus 37% of P equals $59.

The equation looks like this: P - 0.37P = $59. We can simplify this equation by combining like terms, which gives us 0.63P = $59. To find P, we then divide both sides of the equation by 0.63, leading us to the original price.

Let's do the math:

The original price of the printer is calculated to be approximately $93.65.

Answer:

D. Place the compass on point E and draw a small arc below the line and beneath point R.

Step-by-step explanation:

According, to given construction we need to draw the a perpendicular on a line m from a point R above the line.

According to given figure, we have given a line m and R is a point above the line then they placed the compass on point R and draw the an arc by cutting line m at the points E and F. In next step we need to  

D. Place the compass on point E and draw a small arc below the line and beneath point R.

Answer:

Step-by-step explanation:

If from a table a ratio

[tex]\dfrac{y_2-y1}{x_2-x_1}[/tex]

is constant, then a table represents a linear function.[tex]\begin{array}{c|c}x&y\\1&-2\\2&-10\\3&-18\\4&-26\end{array}\\\\\dfrac{-10-(-2)}{2-1}=\dfrac{-8}{1}=-8\\\dfrac{-18-(-10)}{3-2}=\dfrac{-8}{1}=-8\\\dfrac{-26-(-18)}{4-3}=\dfrac{-8}{1}=-8[/tex]

[tex]\begin{array}{c|c}x&y\\1&-2\\2&-4\\3&-8\\4&-16\end{array}\\\\\dfrac{-4-(-2)}{2-1}=\dfrac{-2}{1}=-2\\\dfrac{-8-(-4)}{3-2}=\dfrac{-4}{1}=-4[/tex]

Answer:

a) Current month's interest is: $40

b) The final payment is $7,440

c) Amount saved by paying off loan early is: $600

Step-by-step explanation:

Principal = $6,000

Interest rate = 8% or 0.08

Time = 36 months or 3 years

After 20 payments, the payment is $2,849.08.

a) What is the CURRENT month's interest?

The formula used to find the interest is:

I = P*r*t

Where P= Principal Amount

r = interest rate

and t = time in years

Putting the given values:

I = 6,000 * 0.08 * 3

I = 1440

Total Interest = $1440

Current Month interest = 1440/36

Current Month interest = 40

So, Current month's interest is: $40

b) What is the final payment?

The formula used is:

A = P(1+r*t)

A = 6,000(1+0.08*3)

A = 6000*(1.24)

A = 7,440

So, the final payment is $7,440

c) How much is saved by paying off the loan early?

The current balance paid is $2,849.08

The loan is paid when next payment is due.

So, remaining amount to be paid is:

Remaining Amount = Final Payment - Current balance paid

Remaining Amount = 7,440 - 2,849.08

Remaining Amount = 4,590.92

Remaining months in which amount is to be paid: 36-20 = 16 months

The loan is paid off next month so interest rate of remaining 15 months = 15*40 = 600

The amount paid on next payment = 4590.92 - 600 = $3990.9

So, amount saved by paying off loan early is: $600

Final answer:

Lionel Cooper saved $136.63 by paying off his loan early. The current month's interest on his loan was $19.09, making his final payment $2,868.17 after paying off the remaining balance of $2,849.08.

Explanation:

Lionel Cooper paid for new mechanic's tools with an installment loan of $6,000 at 8% annual interest rate for 36 months, with monthly payments of $187.80. After 20 payments, he decides to pay off the remaining balance of $2,849.08.

a.) What is the CURRENT month's interest?

First, calculate the monthly interest rate, which is 8% annually, or 0.08/12 per month = 0.0067. The current month's interest is the balance multiplied by the monthly interest rate: $2,849.08 * 0.0067 = $19.09.

b.) What is the final payment?

The final payment is the sum of the current month's interest plus the remaining balance: $19.09 (interest) + $2,849.08 (balance) = $2,868.17.

c.) How much is saved by paying off the loan early?

Normally, Lionel would pay $187.80 for 16 more months, totaling $3,004.80. By paying off early, he only paid $2,868.17, so he saved $136.63.

Answer:

C. 10 units

Step-by-step explanation:

The half diagonals of a rhombus are the legs of a right triangle with the hypotenuse being the side of the rhombus.

EG and FH are the diagonals of the rhombus. The half-diagonals measure 8 and 6.

We can use the Pythagorean theorem to find the hypotenuse length with is the length of the side of the rhombus.

a^2 + b^2 = c^2

8^2 + 6^2 = c^2

64 + 36 = c^2

100 = c^2

c^2 = 100

c = 10

Answer: 10 units

The length of one side of the rhombus is 10 units.

A rhombus is a two dimensional shape which consists of four equal sides with opposite side being parallel and opposite angles being equal.

Given that,

EFGH is a rhombus.

Length of the two diagonals are also given.

EG = 16 and FH = 12

In a rhombus, the diagonals bisect each other at right angles.

Let the intersection point of the diagonals be O.

Consider ΔOFG.

Using Pythagoras Theorem,

(FG)² = (OG)² + (OF)²

OG = EG / 2 = 16 / 2 = 8

OF = FH / 2 = 12 / 2 = 6

(FG)² = 8² + 6²

        = 100

FG = √100 = 10

Hence the length of one side of the rhombus is 10 units.

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Answer:

[tex]|m-32|\leq 8[/tex]

Range: [tex]24\leq m\leq 40[/tex]

Step-by-step explanation:

Let m represent cost of medication.

We have been given that a pharmacy claims that the average medication costs $32 but it could differ as much as $8.

[tex]|\text{Actual}-\text{Ideal}|\leq \text{tolerance}[/tex]

[tex]|m-32|\leq 8[/tex]

Using absolute value inequality definition, if [tex]|u|\leq a[/tex], then [tex]-a\leq u\leq a[/tex], we will get:

[tex]-8\leq m-32\leq 8[/tex]

[tex]-8+32\leq m-32+32\leq 8+32[/tex]

[tex]24\leq m\leq 40[/tex]

Therefore, the range of medication costs at the pharmacy is [tex]24\leq m\leq 40[/tex].

Answer:

18

Step-by-step explanation:

Please mark brainliest and have a great day!

Answer: X=16

Step-by-step explanation: Add 90 and 22 and you will get 112. Since the beginning of the equation is "7x" which is multiplication you use Inverse Operations. So, you divide the sum, 112, by 7. Your answer will be 16.

We have been given the following functions:

f(x) = 3x - 9

g(x) = x

(G*f) means to multiply the function of g and f together:

x(3x - 9)

3x^2 - 9x

Now multiply the product of the solution above by 5:

5(3x^2 - 9x)

15x^2 - 45x

So,  (g*f)(5) = 15x^2 - 45x

Answer:

6

Step-by-step explanation:

Substitute x = 5 into f(x) then substitute the value obtained into g(x)

f(5) = (3 × 5) - 9 = 15 - 9 = 6, then

g(6) = 6

Hence (g ￮ f)(5) = 6

Answer:

[tex]110.5\pi \ in^2[/tex]

Step-by-step explanation:

Given

Slant height = l = 17 in

Diameter = d = 13 in

We are given diameter of the circular base. We have to find radius first to calculate lateral area.

Radius = r = d/2

= 13/2

= 6.5 in

The formula for lateral area is:

[tex]LA = \pi rl\\Putting\ the\ values\\\LA = \pi *6.5*17\\= 110.5\pi in^2[/tex]

Hence, second option is correct ..

Answer:

Pls mark me brainliest because other guy is a genius

Step-by-step explanation:

Answer:

Last option

Step-by-step explanation:

Given expression is:

[tex]\sqrt{\frac{128x^5y^6}{2x^7y^5} }[/tex]

The terms can be simplified one by one

[tex]=\sqrt{\frac{64x^5y^6}{x^7y^5} }[/tex]

As the larger power of x is in numerator, the smaller power will be brought to denominator

[tex]=\sqrt{\frac{64y^6}{x^{(7-5)}y^5}}\\=\sqrt{\frac{64y^6}{x^{2}y^5}}[/tex]

Similarly for y,

[tex]=\sqrt{\frac{64y^{(6-5)}}{x^{2}}}\\=\sqrt{\frac{64y}{x^{2}}}[/tex]

Applying the radical

[tex]\sqrt{\frac{8^2*y}{x^{2}}}\\So\ the\ answer\ will\ be\\= \frac{8\sqrt{y}}{x}[/tex]

So, last option is the correct answer ..

Answer: Last option.

Step-by-step explanation:

You need to apply the Quotient of powers property:

[tex]\frac{a^m}{a^n} =a^{(m-n)}[/tex]

Then:

[tex]\sqrt{\frac{128x^5y^6}{2x^7y^5}} =\sqrt{\frac{64y}{x^2}}[/tex]

Remember that:

[tex]64=8*8=8^2[/tex]

Then you can rewrite the expression:

[tex]=\sqrt{\frac{8^2y}{x^2}}[/tex]

Finally, since [tex]\sqrt[n]{a^n}=a[/tex], you get:

[tex]=\frac{8\sqrt{y} }{x}[/tex]

Step-by-step answer:

The domain of log functions (any legitimate base) requires that the argument evaluates to a positive real number.

For example, the domain of log(4x) will remain positive when x>0.

The domain of log_4(x+3) requires that x+3 >0, i.e. x>-3.

Finally, the domain of log_2(x-3) is such that x-3>0, or x>3.

Answer:

all real numbers greater than –3

Step-by-step explanation:

Answer:

Option C. 50 square centimeters

Step-by-step explanation:

we know that

The surface area is equal to the area of four triangles plus the area of rectangle

so

[tex]SA=2[\frac{1}{2}(4)(2)]+2[\frac{1}{2}(6)(3)]+(6)(4)[/tex]

[tex]SA=8+18+24[/tex]

[tex]SA=50\ cm^{2}[/tex]

Answer:

C

Step-by-step explanation:

The total area comprises of the rectangle (area is base * height) and the 4 triangles (area = 1/2 * base * height).

Area of rectangle = 6 * 4 = 24

Area of top triangle = 1/2 * 6 * 3 = 9

Area of bottom triangle = 1/2 * 6 * 3 = 9

Area of rightside triangle = 1/2 * 4 * 2 = 4

Area of leftside triangle = 1/2 * 4 * 2 = 4

Let's add them up and find the correct answer:

Area = 24 + 9 + 9 + 4 + 4 = 50

Answer:

2.75s + 2w ≤ 15  

3 waters  

2.75s + 2(3) ≤ 15  

2.75 + 6 ≤ 15  

Subtract 6 from both sides  

2.75s ≤ 9  

Divide both sides by 2.75  

s ≤ 3.27  

since you can't by a negative amount of soda  

0 ≤ s ≤ 3.27  

But you also can't buy part of a soda  

0 ≤ s ≤ 3 <------

Hope this helps?

Inequality which represents the number of sodas is 0 ≤ s ≤ 3.

Given:

Alexandra has $15.

Cost of soda = $2.75

Cost of bottled water = $2.00

2.75s + 2w ≤ 15

Let, number of sodas be s.

number of bottled water be w.

Three Alexandra's friends asked for water.

∴ w = 3

⇒ 2.75s + 2(3) ≤ 15

⇒ 2.75s + 6 ≤ 15

Subtracting 6 from the both sides, we get:

⇒ 2.75s ≤ 15 - 6

⇒ 2.75s ≤ 9

Divide both sides by 2.75, we get:

⇒ s ≤ 9/2.75

⇒ s ≤ 3.27

But the number of sodas (s) should be a whole number and not an integer.

⇒ s ≤ 3

⇒ 0 ≤ s ≤ 3

Therefore, the inequality which represents the number of sodas she can

buy is 0 ≤ s ≤ 3.

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Answer:

Ste-by-step explanation

400/500 = 0.8 x 35.000 = 28.000

28.000 homes will have wifi access.

Answer:

Estimated .70%2A25000 = 17,500 homes in the city will have wifi access

Step-by-step explanation: