Solve the quadratic equation by using a numeric approach. x squared + 8 x + 16 = 0 a. x = 1 c. x = 5 b. x = -4 d. x = -8 Please select the best answer from the choices provided A B C D

Answer:

B

Step-by-step explanation:

Answer:

[tex]25 \times 25[/tex]

Step-by-step explanation:

The linear function that connects the points with coordinates (0,3) and (1,8) is given by:

y = 3 + 5x.

The points on the graph are missing, and the problem couldn't be found on a search engine, hence we are going to suppose that the points are (0,3) and (1,8).

A linear function is modeled according to the following rule:

y = mx + b

In which:

Considering points (0,3) and (1,8), we have that:

Hence the linear function that connects the points with coordinates (0,3) and (1,8) is given by:

y = 3 + 5x.

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Answer:

the only answer i could think of is because

6*5= 30 which is the remainder of the wall that needs to be painted

Answer:

Length = 20 ft. Width = 6 ft.

Step-by-step explanation:

The relative frequencies of the five classes are 14%, 32%, 38%, 11%, 2.9%.

Given, we have the frequency table grades A,B,C,D,F with frequencies of 5,11,13,4, and 1 respectively.

According to the question the relative frequency, the specific frequency is divided by the total frequency.

The sum of all the frequencies is called relative frequency.

= 5 + 11 +13 +4 +1 = 34

The relative frequency of the

first

class is,

A   5/34  =  0.14 =  14%

The relative frequency of the

second

class is,

B 11/34 =  0.32 = 32%

The relative frequency of the

third

class is,

C 13/34  =  0.38  = 38%

The relative frequency of the

fourth

class is,

D  4/34  = 0.11   = 11%

The relative frequency of the

fifth

class is,

F  1/34 =   0.029    = 2.9%

Hence, the relative frequencies of the five classes are 14%, 32%, 38%, 11%, 2.9%.

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Answer:

he walks 4.5 feet every second

Step-by-step explanation:

Answer:

y < 1

[tex]( - \infty \: 1)[/tex]

Step-by-step explanation:

8y - 5 < 3

8y < 8

y < 1

[tex]( - \infty \: 1)[/tex]

Answer:3/4

Step-by-step explanation:

18/24 divide by 2 9/12 divide by 3 3/4

Answer:

First box: 15

Second box: 8

Third box: 3

Fourth box: 5

Fifth box: (x+3)(x+5)

Step-by-step explanation:

Factor the trinomial so that it will multiply nicely. 3 and 5 add up to 8 while they multiply to 15

Answer:

[tex]6^{7/2}[/tex]

Step-by-step explanation:

[tex]6^4 \div 6^{1/2} \\ \\ =6^{4-\frac{1}{2}} \\ \\ =6^{7/2}[/tex]

Answer:

This question was previously solved by an expert

Answer:

Step-by-step explanation:

go to school

Answer:

c is the answer

Step-by-step explanation:

hint is the direction of movement

Answer: 14a + 4b

Step-by-step explanation: 2(4a+b) part equals 8a + 2b because it is distributive property and then 2(3a+b) equals 6a+2b then put the a's. 8a + 6a = 14a then the b's. 2b+2b= 4 b. Put them together and it gives you 14a + 4b.

Step-by-step explanation:

2(4a+b)+2(3a+b) remove the brackets

2(4a+b)+2(3a+b) =

8a + 2b + 6a +2b =  (no brackets)

14a + 4b                    (solution)

The area of the building in terms of y in its simplest form is (8y^2-18)

Since the area of rectangular is

Area = Length x Breadth

From our Question,

The width of the rectangle building is 2y feet.

So, L = 4y - 9 feet

So, the area of the building in terms of y is

Area = L x B

= (4y-9)x 2y

= (8[tex]y^2[/tex] - 18y)

So, the area of the building in term of y in its simplest form is (8y^2 -18)

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The correct statement that is missing in the proof is m<5 + m<2 = 180 degrees

Supplementary angles are angles that sums up to 180 degrees. From the third proof, we can see that the measure of m<1 is equivalent to m<5.

Also from the 4th statement <1 and m<2 are supplementary meaning that the sum of <1 and <2 is equivalent to 180 degrees.

Since m<1 = m<5, we can replace m<1 as m<5 in the equation m<1 + m<2 = 180 from statement 4 to have m<5 + m<2 = 180 degrees by the substitution property.

Hence the correct statement that is missing in the proof is m<5 + m<2 = 180 degrees.

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Answer:

if u might be giving replies in short like hmm... gn and all she meant that only ig

hope it helps.....

Based on the number of respondents with excellent health and those don't have health coverage, the probability that the respondent has excellent health or doesn't have health coverage is 33.61%

Out of 20,000 respondents, 2,524 people did not have health coverage. Out of those same 20,000 people, 4,198 respondents had excellent health coverage.

The probability that the respondent has excellent health or doesn't have health coverage is therefore:

= Probability that random person does not have health coverage + Probability that a respondent has excellent health coverage

= (2,524 + 4,198) / 20,000

= 33.61%

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The percentage of the total capacity being used is mathematically given as  98.4 %

Generally, the equation for the Lateral area is  mathematically given as

Lateral area =[tex]\frac{\theta}{2} \gamma^2-(\gamma-h) \sqrt{h(2-h)}\\[/tex]

Where

[tex]\theta=2 \cos ^{-1}\left(1-\frac{h}{\gamma}\right)=2 \cos ^{-1}\left(1-\frac{1}{11}\right)\\\\\&\Rightarrow F=\frac{\theta}{2}(11)^2-(11-1) \sqrt{1(2-1)}\\\\&\Rightarrow F=\frac{2\left(\cos ^{-1}(10 \% 11)\right.}{2}(11)^2-(10) \sqrt{1}\\\\&\Rightarrow F=6.167 \mathrm{ft}^2[/tex]

Hence Volume of the whole cylinder is

V=\pi 11^2 l

V=121 \pi l

Generally, the equation for Total capacity is  mathematically given as

[tex]V_1=\pi(11)^2 L[/tex]

[tex]=121 \pi 2ft^2[/tex]

Area of cross-section:-

[tex]\begin{aligned}A &=\int_{-11}^{10}\left[\sqrt{1^2-y^2}-\left(-\sqrt{u^2-y^2}\right)\right] d y \\&=2 \int_{-71}^{10} \sqrt{1^2-y^2} d y . \\A & \cong 373.96 \mathrm{ft}^2\end{aligned}[/tex]

In conclusion, the Percentage of total capacity

[tex]\% TC=\frac{121 \pi l-6.167 l}{121 \pi l} \times 100 \\[/tex]

[tex]\% TC =\frac{373.77}{3799+100}=98.37 \%[/tex]

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The equilibrium price is $12.

Equilibrium is the point where the quantity demanded is equal to the quantity supplied. The price at equilibrium is known as the equilibrium price and the quantity at equilibrium is known as the equilibrium quantity.

When shown on a graph, equilibrium is the point where the quantity demanded curve is equal to the quantity supplied curve.

When there is equilibrium, the equation of quantity demanded would be equal to the equation of quantity supplied.

-280 + 40p = 800  - 50p

In order to determine the value of p, take the following steps:

Combine similar terms: 800 + 280 = 40p + 50p

Add similar terms = 1080 = 90p

Divide both sides of the equation by 90 : 1080 / 90 = 12

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Canon has 12 jigsaw puzzles in total.

What is Algebraic expression ?

Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.

Let us say puzzles solved by :

Arthur be x

Conan be y

Doyle be z

also,

Here, it is given that :

Arthur has completed four times as many jigsaw puzzles as Conan which means :

x = 4y.......(1)

Doyle has completed three times as many jigsaw puzzles as Conan which  means :

z = 3y.....(2)

Doyle has completed 12 fewer jigsaw puzzles than Arthur has means :

z = x-12....(3)

now, to find the number of jigsaw puzzles does Conan (y) we equate equation (2) and (3) to find the value of y also by putting value of x in equation (3) :

3y = x-12

3y = 4y-12

4y-3y = 12

y = 12

Therefore, Canon has 12 jigsaw puzzles in total.

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Answer:

[tex]\frac{dy}{dx}[/tex] = [tex]\frac{15}{4}[/tex] u

Step-by-step explanation:

[tex]\frac{dy}{dx}[/tex] = [tex]\frac{dy}{du}[/tex] × [tex]\frac{du}{dx}[/tex]

differentiate using the power rule

[tex]\frac{d}{dx}[/tex] (a[tex]x^{n}[/tex] ) = na[tex]x^{n-1}[/tex] , and [tex]\frac{d}{dx}[/tex] (constant) = 0

given

x = 2u² + 1

[tex]\frac{dx}{du}[/tex] = 4u , then

[tex]\frac{du}{dx}[/tex] = [tex]\frac{1}{4u}[/tex]

y = 5u³ + 1

[tex]\frac{dy}{du}[/tex] = 15u²

then

[tex]\frac{dy}{dx}[/tex] = 15u² × [tex]\frac{1}{4u}[/tex] = [tex]\frac{15}{4}[/tex] u

Answer:lake a:7 lake b:9 lake c 21

Step-by-step explanation:

Answer:

B

Give me brainliest answer

I hope I could help.

In mathematical modelling, we take a real-world problem and write it as an equivalent mathematical problem.

We then solve the mathematical problem, and interpret its solution in terms of the real-world problem.

After this we see to what extent the solution is valid in the context of the real-world problem.

Mathematical modeling is one of the bases of mathematics education. Mathematical modeling is described as conversion activity of a real problem in a mathematical form. Modeling involves to formulate the real-life situations or to convert the problems in mathematical explanations to a real or believable situation.

It's extremely precise, since it's math-based, which allows you to develop accurate ideas and assumptions. It's concise, with clear and established rules. It gives you direction when trying to solve a problem.

characters of modeling;

It may be changed or manipulated with relative ease.

It is simplification/Idealization. Mathematical modeling has many benefits related to real-world problems, but the main disadvantages are process simplification, specific rules of the model, and lack of information or data monitoring.

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Answer:

600 feet

Step-by-step explanation:

If you moved Both Samantha and Ryu two units to the left, you would see that the distance would be equal from 0 to -600.  Distance cannot be negative so the distance between the two would be 600 feet.

A piecewise function that relates the salesperson total monthly income based off or his/her sales for the month is  X > 25000.

An accurate graph of this piecewise function is 2100.

The salesperson's monthly income if his/her sales were $43,000 for the month is $ 4250

Explanation for this is

a) S(x) = 0.02x + 2850  ( 0 < x < 25000 )

              0.05x + 2100  ( X > 25000 )

b) 25k  26k

    500  550

3400 = 0.05 ( 26000) + b

3400 = 1300 + b

b = 2100

c) 0.05 (43000) + 2100

= $4250

The core concept of mathematics' calculus is functions. The unique varieties of relations are the functions. In mathematics, a function is represented as a rule that produces a distinct result for each input x.

In mathematics, a function is indicated by a mapping or transformation. Typically, these functions are identified by letters like f, g, and h. The collection of all the values that the function may input while it is defined is known as the domain.

The whole set of values that the function's output can produce is referred to as the range. The set of values that might be a function's outputs is known as the co-domain.

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By answering the above question, we may state that by equation A = S + 18 = 24 + 18 = 42 and Alex thus owns 42 books.

Using the equals notation (=) to indicate equivalence, a math equation links two statements. Algebraic equations prove the equality of three mathematical expressions by a mathematical assertion. The equal sign, for example, provides a gap between the numbers 3x + 5 and 14 in the equation 3x + 5 = 14. You can use a mathematical formula to understand the connection between the two phrases that are inscribed on opposite sides of a letter. Most of the time, the symbol and the particular software match. e.g., 2x - 4 = 2 is an example.

Let's designate the quantity of books Alex has as "A" and the quantity of books his sister Scout owns as "S."

We learn the following from the issue:

A = S + 18 (Alex possesses 18 more books than his sister) (Alex owns 18 more books than his sister)

A + S = 66 (combined, they possess 66 books) (together, they own 66 books)

These two equations can be used to determine A:

The first equation is substituted into the second equation to yield:

(S + 18) + S = 66

2S + 18 = 66

2S = 48

S = 24

Scout has 24 books, thus we can apply the first equation to determine how many books Alex has:

A = S + 18 = 24 + 18 = 42

Alex thus owns 42 books.

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