Solve the equation -15=a/5

Answer:

[tex]\frac{(x-1)^{2}}{4}+\frac{y^{2}}{25}=1[/tex]

Step-by-step explanation:

we have

[tex]25x^{2}+4y^{2}-50x-75=0[/tex]

Convert to standard form

Group terms that contain the same variable, and move the constant to the opposite side of the equation

[tex](25x^{2}-50x)+4y^{2}=75[/tex]

Factor the leading coefficient of each expression

[tex]25(x^{2}-2x)+4y^{2}=75[/tex]

Complete the square twice. Remember to balance the equation by adding the same constants to each side.

[tex]25(x^{2}-2x+1)+4y^{2}=75+25[/tex]

[tex]25(x^{2}-2x+1)+4y^{2}=100[/tex]

Rewrite as perfect squares

[tex]25(x-1)^{2}+4y^{2}=100[/tex]

Divide both sides by the constant term to place the equation in standard form

[tex]\frac{25(x-1)^{2}}{100}+\frac{4y^{2}}{100}=\frac{100}{100}[/tex]

Simplify

[tex]\frac{(x-1)^{2}}{4}+\frac{y^{2}}{25}=1[/tex]

Answer:

yes

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

Recall that a rational number is a number that results from dividing 2 integers

I'm not sure if your question refers to (√4) / 9 or √(4/9), but either way both are rational numbers:

If (√4) / 9, Then,

(√4) / 9

= 2/9

Since both 2 and 9 are integers, then 2/9 is a rational number

If √(4 / 9), Then,

√(4 / 9)

= √4 / √9

= 2/3

Since both 2 and 3 are integers, then 2/3 is also a rational number

A 45-45-90 right triangle is formed when a square is cut in half diagonally. This forms two such right triangles, where the sides are in a specific ratio, with the length of the hypotenuse being root 2 times the length of each leg.

A 45-45-90 right triangle is formed when a square is cut in half. This is because when you draw a diagonal on a square, the angles it forms with the sides are all 45 degrees, and the angles at the vertices remain 90 degrees. Therefore, it forms two 45-45-90 right triangles.

In a 45-45-90 triangle, the sides are in a specific ratio. The length of the hypotenuse is root 2 times the length of each leg, which are equal in measure because it is an isosceles triangle. These properties are unique to 45-45-90 right triangles.

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Answer:

Never mind, but your question makes no sense.

Step-by-step explanation:

List the rest of the question.

D. Determine if the relations’ graph forms a line.

Step-by-step explanation:

A function is a relation if the input values lead to only one output value.The input values, normally x values make up the domain, where as the output values form the domain.A function is a relation where the input values are associated with a single output.The vertical test is used to determine if a curve is a function.The line graph should only hit a single point on the curve.

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Answer:

the domain of the function f(x) is [tex]x\ge 7[/tex]

the range of the function f(x) is [tex]f(x)\ge 9[/tex]

Step-by-step explanation:

Consider the parent function [tex]y=\sqrt{x}.[/tex]

The domain og this function is [tex]x\ge 0,[/tex] the range of this function is [tex]y\ge 0.[/tex]

The function [tex]f(x)=\sqrt{x-7}+9[/tex] is translated function [tex]y=\sqrt{x}[/tex] 7 units to the right and 9 units up, so

the domain of the function f(x) is [tex]x\ge 7[/tex]

the range of the function f(x) is [tex]f(x)\ge 9[/tex]

Answer:

C

Step-by-step explanation:

Just took quiz

A. Mr. Babe made a commission of $14.85

B. He makes $15.75 per hour after the raise.

Step-by-step explanation:

A. While he worked there, Mr. Babe earned 3% on how much he sells. If he sold $495 couch, how much commission did he make?

Worth of sold couch = $495

Commission = 3%

Amount of commission = 3% of total worth sold

Amount of commission = [tex]\frac{3}{100}*495[/tex]

Amount of commission = [tex]\frac{1485}{100}=\$14.85[/tex]

Mr. Babe made a commission of $14.85

B. On top of his commission, Mr. Babe made $15 per hour. He eventually got a raise with an increase of 5% per hour. After the raise, how much did he make per hour?

Amount earned per hour = $15

Increase = 5%

As the increment is on per hour amount, therefore,

Amount of increase = 5% of per hour amount

Amount of increase = [tex]\frac{5}{100}*15=\frac{75}{100} = \$0.75[/tex]

New amount per hour = Per hour amount + amount of increase

New amount per hour = 15+0.75 = $15.75

He makes $15.75 per hour after the raise.

Keywords: percent, addition

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Answer:

290

Step-by-step explanation:

Answer:

156.63 Square feet

Step-by-step explanation:

Final answer:

The area of a bedroom that is 13.62 feet by 11.5 feet is 156.63 square feet, found by multiplying the length by the width.

Explanation:

The most accurate measure of the area of a bedroom that measures 13.62 feet long and 11.5 feet wide is calculated by multiplying the length by the width. The formula for the area of a rectangle is:

Area = length × width

Thus, the area is:

Area = 13.62 feet × 11.5 feet = 156.63 square feet

This calculation ensures that you have the most accurate measure of the square footage necessary, for example, if you are planning to replace the carpet or perform other renovations that require an accurate measure of the room's floor space.

No, A and B are not independent events

Step-by-step explanation:

Let us study the meaning independent probability  

∵ P(A) = [tex]\frac{3}{14}[/tex]

∵ P(B) = [tex]\frac{1}{5}[/tex]

∴ P(A) . P(B) = [tex]\frac{3}{14}[/tex] × [tex]\frac{1}{5}[/tex]

∴ P(A) . P(B) = [tex]\frac{3(1)}{14(5)}[/tex]

∴ P(A) . P(B) = [tex]\frac{3}{70}[/tex]

∵ P(A and B) = [tex]\frac{3}{65}[/tex]

∵ P(A) . P(B) = [tex]\frac{3}{70}[/tex]

- The two answers are not equal

∴ P (A and B) ≠ P(A) · P(B)

- In independent events P (A and B) = P(A) · P(B)

∴ A and B are not independent events

No, A and B are not independent events

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Events A and B are not independent.

The events A and B are independent given that P(A) = 3/14, P(B) = 1/5, and P(A AND B) = 3/65. To determine if two events are independent, the product of their individual probabilities, P(A) and P(B), should equal the probability of both events occurring together, P(A and B).

Let's calculate this:

P(A) × P(B) = (3/14) × (1/5) = 3/70

Since P(A AND B) = 3/65, we compare it to the calculated product of P(A)P(B).

P(A AND B) is not equal to P(A)P(B). Therefore, events A and B are not independent because their joint probability is not the product of their individual probabilities.

Answer:

Step-by-step explanation:

5a^2 - 44 = 81

5a^2   = 81  + 44   {add 44 both the sides}

5a^2  = 125

a^2 = 125/5    {divide both sides by 5}

a^2 = 25

a^2 = 5*5

a =  ±5

Answer:

Option c) is correct

ie, a=plus minus 5 or [tex]a=\pm 5[/tex]

Step-by-step explanation:

Given equation is [tex]5a^2-44=81[/tex]

To find the solution of the given equation we have to solve the equation

[tex]5a^2-44=81[/tex]

[tex]5a^2=81+44[/tex]

Now applying the algebraic sum to the terms on the right hand side of the equation

[tex]5a^2=125[/tex]

[tex]a^2=\frac{125}{5}[/tex]

Now applying the division rule

[tex]a^2=25[/tex]

Therefore [tex]a=\pm 5[/tex]

Therefore option c) is correct

ie, [tex]a=\pm 5[/tex].

Answer:

fevervrv

Step-by-step explanation:

3v43gvr3r54v4bv

As per question, Mandy has a 10.02-ounce container of mustard. The required Amount of Mustard left after she has eaten 6 hot dogs is 8.16 ounce.

Given:

Mandy has a 10.2-ounce container of mustard.

She uses 1/30 of the mustard to put on her hot dog each time.

According to question, Mandy has a 10.2-ounce container of mustard.

Now, 1/30 of the mustard to put on her hot dog each time to 6 hot dogs, so weight of mustard used is calculated as,

[tex]\frac{1}{30}\times10.2\times 6=2.04\;\rm{ounce}[/tex]

So, Amount of Mustard left after eating 6 hot dogs is,

[tex]10.2-2.04=8.16\;\rm{ounce[/tex]

Therefore, the required amount of mustard left after eating 6 hot dogs is 8.16 ounce.

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To calculate the total hours you will be paid for this week, subtract the total lunch break time from the total working hours. Therefore, the total hours you will be paid for this week is 19 hours and 45 minutes.

To calculate the number of hours you will be paid for this week, you need to subtract the total lunch break time from the total working hours.

On Monday, you worked from 8 AM to PM, which is 10 hours.

On Tuesday, you worked from 9 AM to 3 PM, which is 6 hours.

On Thursday, you worked from 8:30 AM to 2:15 PM, which is 5 hours and 45 minutes.

Overall, your total working hours for the week are 10 + 6 + 5 hours and 45 minutes.

Each day you have a 30-minute unpaid lunch break, so for the entire week you would have 4 lunch breaks x 30 minutes = 2 hours taken for lunch breaks.

Therefore, the total hours you will be paid for this week are 10 + 6 + 5 hours and 45 minutes - 2 hours = 19 hours and 45 minutes.

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Question:

Katy makes 48 cookies an hour. If she has 24 already, how long would it take her to make 120?

Answer:

It takes 2.5 hours for Katy to make  120 cookies

Step-by-step explanation:

Given:

Time taken to make 48  cookies = 1 hour

To Find:

Time taken to make 120 cookies = ?

Solution:

Time taken to make 48 cookies  = i hour

So now time taken to make 1 cookie  = [tex]\frac{1}{48} hour[/tex]

So time taken to make 120 cookies

= Number of cookies X time taken to make one cookie

=>[tex]120 \times  \frac{1}{48}[/tex]

=>[tex] \frac{120}{48}[/tex]

=> 2.5 hours

Answer:

n=-4

Step-by-step explanation:

56/-14=n

n=-4

Answer:

       36

100x

Step-by-step explanation:

Answer: I believe 1036 ur welcome :)

Answer:

y = 139x + $ 799

y = 587x + $ 285

Step-by-step explanation:

Let x represent the number of days spent at the resort and y represent the total cost.

for the first option

y = 139x + $799 since $ 139 is the amount per night at the resort, $139x must be the cost for x number of days

y = 587x + $285  similarly x number of days should equal $587x

Answer:

1200

Step-by-step explanation:

its just common sense that 2*2=4  and 10*4=40 so now all you have to do is 40*30 which its just common knowledge that 4*3=12 now just add the zeros 1200

Answer:

y=10x+2

Step-by-step explanation:

y-y1=m(x-x1)

y-2=10(x-0)

y-2=10(x)

y-2=10x

y=10x+2

Answer:

Yes, The slope of the line k between C and D is constant

Step-by-step explanation:

Lets find the slope of the line K from the points AC and AD

Step1:

Slope of line K from AC (point C)

= [tex]\frac{AB}{BC}[/tex]

= [tex]\frac{1}{3}[/tex]

Step 2:

Slope of line k from AD (point D)

= [tex]\frac{DF}{A F}[/tex]

= [tex]\frac{2}{3}[/tex]

=[tex]\frac{1}{3}[/tex]

The slope of the line K from the points AC and AD are equal

Answer:

Step-by-step explanation:

If angle STU is given as 82 degrees, then arc SVU is twice the measure of its inscribed angle. That means that arc SVU is 164 degrees.

arc SVU = arc SV + arc VU. By substitution,

164 = 120 + arc VU so

arc VU = 44 degrees

Answer:

(-3, -14)

Step-by-step explanation:

the difference between 9 and 3 is 6 so subtract 6 from 3 to get negative 3. the difference between 4 and - 5 is 9 so subtract 9 from -5

Step-by-step explanation:

AC ≅ EF, given

AB ≅ ED, given

∠C ≅ ∠F, right angles are congruent

ΔABC ≅ ΔEDF, SSA congruence

BC ≅ DF, corresponding parts of congruent triangles are congruent

Correct answer:

D. (-5,-4)

In order to solve this problem,  let's plot each point. So, see the attached file below and keep in mind the following:

As you can see on the graph, only point (-5, -4) lies on the given line. Therefore, the conclusion is that this point could be a solution to a system of linear equations including the line graphed below.

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Answer:

Option b) is correct.

The completed factor of given expression is  [tex]2(x-2)(x+2)(x^2+4)[/tex]

Step-by-step explanation:

Given expression is [tex]2x^4-32[/tex]

To find the completed factor for the given expression:

[tex]2x^4-32[/tex]:

Taking the common number "2" outside  to the above expression we get

[tex]2x^4-32=2(x^4-16)[/tex]

Now rewritting the above  expression as below

[tex]=2(x^4-2^4)[/tex]  (since 16 can be written as the number 2 to the power of 4)

[tex]=2((x^2)^2-(2^2)^2)[/tex]

The above expression is of the form [tex]a^2-b^2=(a+b)(a-b)[/tex]

Here [tex]a=x^2[/tex] and  [tex]b=2^2[/tex]

Therefore it becomes

[tex]=2(x^2+2^2)(x^2-2^2)[/tex]

[tex]=2(x^2+4)(x^2-2^2)[/tex]  

The above expression is of the form [tex]a^2-b^2=(a+b)(a-b)[/tex]

Here [tex]a=x[/tex] and  [tex]b=2[/tex]

Therefore it becomes

[tex]=2(x^2+4)(x+2)(x-2)[/tex]  

[tex]=2(x+2)(x-2)(x^2+4)[/tex]  

Therefore [tex]=2(x+2)(x-2)(x^2+4)[/tex]  

[tex]2x^4-32=2(x-2)(x+2)(x^2+4)[/tex]  

Option b) is correct.

The completed factor of given expression is  [tex]2(x-2)(x+2)(x^2+4)[/tex]

Answer:

b

Step-by-step explanation:

Answer:

[tex]\frac{8}{5}[/tex]

Step-by-step explanation:

Given that [tex]g(x) = \frac{x + 1}{x - 2}[/tex] and h(x) = 4 - x

Now, if y = f(x) and y = g(x) then the composite function (f∘g)(x) is given by f[g(x)].

Hence, (g∘h)(x) = [tex]g[h(x)] = \frac{(4 - x) + 1}{(4 - x) - 2} = \frac{5 - x}{2 - x}[/tex] .......... (1)

Now, from equation (1) we get,

(g∘h)(x) = [tex] \frac{5 - x}{2 - x}[/tex]

⇒ (g∘h)(- 3) = [tex]\frac{5 - ( - 3)}{2 - ( - 3)} = \frac{8}{5}[/tex] (Answer)

Answer:

The answer is 8/5

Step-by-step explanation:

Final answer:

The expressions that correctly represent an 8% increase from T are (1 + 8/100)T, which simplifies to 1.08T, and 1.08T directly. So, choices (A) 1.08T and (C) 1.08T are correct.

Explanation:

The student is asked to determine which expression represents the average temperature last Sunday when it was 8% higher than the temperature two Sundays ago, given as T degrees Celsius. To find 8% of T, the student would multiply T by 0.08. To calculate the total average temperature last Sunday, the student would then add this to T.

The correct expressions that represent this situation are:

Expressions (Choice B) B: T + 8 and (Choice D) D: 1.8T incorrectly represent an absolute increase of 8 degrees and an 80% increase, respectively, not an 8% increase. Expression (Choice E) E: T + 0.08T is equivalent to 1.08T and is also correct.

Therefore, the correct answers are (Choice A) and (Choice C).

Answer:

A. f(x)=x^2+x+0.25

Step-by-step explanation:

If x represents Lindsey's distance at 2:00 PM, then 2x represents Kara's distance at 2:00 PM because she walked twice as far as Lindsey. Then adding on the values we got for 2:30 PM, we get that Kara walked a distance of 2x+1 and Lindsey walked a distance of x+0.5 at the time of 2:30 PM. Now, we know that they have formed a right triangle because we are given the directions they walked in; east and north. This allows us to use a formula for the area of a right triangle: 1/2(L x W). Plugging in our values, we get...

1/2(2x+1)(x+0.5)

which simplifies to...

1/2(2x^2+2x+0.5)

which further simplifies to...

x^2+x+0.25

which is our answer.

Answer:

A. f(x) = x^2 + x + 0.25

Step-by-step explanation:

Answer:

(20-10)/(4-2)= 10/2= 5 miles/day

The unit rate in this case is the miles travelled per day.

2 days = 10 miles

1 day = 5 miles

answer: 5 miles/day