I will mark brainliest

solution

2x+5=81

2x=81-5

2x=76

x=38

Answer:

[tex]38 = x[/tex]

Step-by-step explanation:

81 = 5 + 2x

- 5 - 5

___________

76 = 2x

__ __

2 2

[tex]38 = x[/tex]

I am joyous to assist you anytime.

Answer:

[tex]\large\boxed{5x^2-13x+6}[/tex]

Step-by-step explanation:

[tex](8x^2-6x+2)-(3x^2+7x-4)\\\\=8x^2-6x+2-3x^2-7x-(-4)\\\\=8x^2-6x+2-3x^2-7x+4\qquad\text{combine like terms}\\\\=(8x^2-3x^2)+(-6x-7x)+(2+4)\\\\=5x^2-13x+6[/tex]

To subtract polynomials, subtract the coefficients of the like terms. Start with the highest degree term and work your way down to the constant term.

To subtract 3x^2 + 7x - 4 from 8x^2 - 6x + 2, you need to subtract the corresponding coefficients of the like terms. Start with the highest degree term, which is x^2. Subtract the coefficient of x^2 in the second polynomial from the coefficient of x^2 in the first polynomial: 8x^2 - 3x^2 = 5x^2. Next, move to the x term. Subtract the coefficient of x in the second polynomial from the coefficient of x in the first polynomial: -6x - 7x = -13x. Finally, subtract the constant term: 2 - (-4) = 6. Therefore, the result is 5x^2 - 13x + 6.

https://brainly.com/question/12380579

#SPJ2

Answer:

12a^3 b^4 c^5

Step-by-step explanation:

4. ∠FCB ≅ ∠GDC: Corresponding angles theorem (when two parallel lines are crossed by a transversal, the corresponding angles formed are congruent) (but to use this, you have to state that ∠BCF and ∠CDG are corresponding)

5. ∠FCB ≅ ∠GCD: Subst. POC (Because ∠FCB ≅∠GDC and ∠GDC≅∠GCD)

6. Converse of the corresponding angles theorem

I can not really show my work since most proofs are theoretical and hence most work is done in the head.

Write both sides as powers of [tex]e[/tex]:

[tex]\ln(x+4)=-1\implies e^{\ln(x+4)}=e^{-1}\implies x+4=e^{-1}[/tex]

since [tex]b^{\log_ba}=a[/tex]. Then

[tex]x=e^{-1}-4\approx-3.63[/tex]

Answer:

-3.63

Step-by-step explanation:

Answer:

Flora's car is 79/100 of a meter longer than Trevor's car

Step-by-step explanation:

Let

x-----> Fiora's car

y-----> Sally's car

z-----> Trevor's car

we know that

[tex]x=y+\frac{59}{100}[/tex] -----> equation A

[tex]y=z+\frac{2}{10}[/tex] -----> equation B

substitute equation B in equation A

[tex]x=(z+\frac{2}{10})+\frac{59}{100}[/tex]

[tex]x=z+\frac{20+59}{100}[/tex]

[tex]x=z+\frac{79}{100}[/tex]

therefore

Flora's car is 79/100 of a meter longer than Trevor's car

Flora's car is 79/100 of a meter longer than Trevor's car.

We are given the following information:

Flora's car is 59/100 of a meter longer than Sally's car.

Sally's car is 2/10 of a meter longer than Trevor's car.

We need to find out how much longer Flora's car is than Trevor's car. To do so, we will add the differences in lengths given:

First, express both fractions with a common denominator:

Convert 2/10 to 20/100:

2/10 = 2 × 10 / 10 × 10 = 20/100

Then, add the lengths:

Add the fractions:

59/100 + 20/100 = 79/100

Therefore, Flora's car is 79/100 of a meter longer than Trevor's car.

ANSWER

[tex]2v + u = \binom{5}{15}[/tex]

EXPLANATION

It was given that:

[tex]u = \binom{1}{3} [/tex]

and

[tex]v = \binom{2}{6} [/tex]

[tex]2v + u =2 \binom{2}{6} + \binom{1}{3} [/tex]

Perform the scalar multiplication to obtain:

[tex]2v + u = \binom{4}{12} + \binom{1}{3} [/tex]

We add the corresponding components to get;

[tex]2v + u = \binom{4 + 1}{12 + 3}[/tex]

[tex]2v + u = \binom{5}{15}[/tex]

The first choice is correct.

Answer:

A

Step-by-step explanation:

Answer:

x=6

Step-by-step explanation:

5x^2-136=44

add 136 to both sides

5x^2=180

divide both sides by 5

x^2= 36

take square root of both sides

x=6

Answer:  The correct options are

(C) x = -6

(D) x = 6.

Step-by-step explanation:  We are given to select the values of x that are the solutions to the following equation :

[tex]5x^2-136=44~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]

The solution of the given equation (i) is as follows :

[tex]5x^2-136=44\\\\\Rightarrow 5x^2=44+136\\\\\Rightarrow 5x^2=180\\\\\Rightarrow x^2=\dfrac{180}{5}\\\\\Rightarrow x^2=36\\\\\Rightarrow x=\pm\sqrt{36}~~~~~~~~~~~~~~[\textup{taking square root on both sides}]\\\\\Rightarrow x=6,~-6.[/tex]

Thus, the solutions to the given equation are x = -6  and  x = 6.

Option (C) and (D) are correct options.

Answer:

B. A normal curve has a horizontal axis with two labeled coordinates, 35 and 50. The curve's peak is near the top of the graph at horizontal coordinate 50. Two vertical line segments run from the horizontal axis to the curve at horizontal coordinates 35 and 50. The area under the curve to the right of the left vertical line segment is shaded; P(X > 35) = 0.9838

Step-by-step explanation:

The middle line in a normal distribution represents the mean.  The mean of this distribution is 50; this means the peak of the curve will have a vertical line down to the horizontal axis at 50.

The value we are concerned with is anything more than 35.  This means there will be a vertical line from the horizontal axis to the curve at 35.  Since we want the probability X is greater than 35, the area to the right of this value under the curve will be shaded.

To find the probability, we use a z score.  The formula for z scores is

[tex]x=\frac{X-\mu}{\sigma}[/tex]

Using our values for X, the mean and the standard deviation, we have

[tex]z=\frac{35-50}{7}=\frac{-15}{7}=-2.14[/tex]

Using a z table, we see that the area under the curve to the right of this value is 0.0162.  This means the area to the left, the desired area, is

1-0.0162 = 0.9838.

According to Cavaliert's Principle,

if two triangles are formed on base of equal length and are between same parallels, i.e have same height, then the triangles are of equal area.

Answer with explanation:

A circle is rotated around a vertical line which we call Y axis.

When we rotate the circle around y axis, and join each circle ,we get a closed shape resembling with the Cylinder, having height equal to Diameter of circle.

We can't Calculate Radius of shape resembling with Cylinder.

The circle is rotated about an axis it forms a circular ring of the thickness as the circle has.

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

Given

The picture is the rotation.

If the point is rotated about the axis it forms a circular ring of no thickness.

The circle is rotated about an axis it forms a circular ring of the thickness as the circle has.

It will look like a bangle.

Thus, the correct option is B.

More about the geometry link is given below.

https://brainly.com/question/7558603

Answer:

Step-by-step explanation:

The first two are incorrect. Only very special n's will work. (Every 10th one for n>0)

Just call A and B incorrect.

400o = 360 + 40

The answer is between C and D

The question is will a negative value for n work? Suppose n = - 1 That means you go around the circle clockwise 1 time and though the question does not say it, you must start at the positive x axis.

Having said that 40 is plus.

The 360 starts at the + x axis. It doesn't matter how it got there. 40 degrees from the +x axis is in the first quadrant. It always will be.

D is correct but C is the better answer because it includes D.

Answer:

2/3

Step-by-step explanation:

Reduce the fraction 18/27 into its lowest terms

since both 18 and 27 are divisible by 9, divide both terms by 9

  18/9 = 2

  27/9 = 3

18/27 reduced to lowest terms is 2/3

Answer:

π radians.

3.14.

Step-by-step explanation:

The period is  π radians  which is 3.14 radians to the nearest hundredth.

Negative 6 and negative 9 would :)

Polynomials are mathematical expressions involving variables raised with non-negative integers, coefficients and constants. The value of the solution that will make the polynomial equal to zero is -6 and -9.

Polynomials are mathematical expressions involving variables raised with non-negative integers and coefficients(constants who are in multiplication with those variables) and constants with only operations of addition, subtraction, multiplication and non-negative exponentiation of variables involved.

The values of x that would make a polynomial equal to zero if the factors of the polynomial are (x+6) and (x+9) are -6 and -9.

Learn more about Polynomials:

https://brainly.com/question/27343162

#SPJ2

Answer: Yes, Atoine is correct.

Step-by-step explanation:

The roots of a quadratic function are also known as the solutions or the zeros of a function. Here is how we get them:

1. Let y=0 to find the x-intercept(s).

0=x^2+25

2. Subtract 25 from both sides.

−25=x&2

3. Take the square root of both sides.

±√−25

=x

4. Simplify √−25​​​ to √​25​​​ı.

±√​25​​​ı=x

5. Since 5×5=25, the square root of 25 is 5.

±5ı=x

6. Switch sides.

x=±5ı

The equation above is not a real solution that represents a line.

Therefore, there are no x-intercepts.

In the given statement is "true".

[tex]\to f(x)=x^2+25[/tex]

            [tex]\to x^2+25=0\\\\\to x^2= -25\\\\\to x= \pm i\sqrt{25}\\\\[/tex]

   Since[tex]\sqrt{-25}[/tex] is an imaginary number then

           [tex]\to x=\pm 5i\\\\\to \sqrt{25}= 5[/tex]

Its equation's solutions are [tex]\pm 5i[/tex].

Therefore, the final answer is "no solution".

Learn more about the quadratic function here:

brainly.com/question/4119784

Answer: [tex]v=\frac{2}{25}[/tex]

Step-by-step explanation:

To solve from v from the equation given in the problem you must apply the folowing proccedure:

- Add like terms:

[tex]-1+\frac{4}{3}=\frac{7}{2}v+\frac{2}{3}v\\\\ \frac{1}{3}=\frac{25}{6}v[/tex]

- Mulitply bot sides of thee equation by 6 and then divide both sids by 25.

Therefore you obtain:

 [tex]\frac{1}{3}=\frac{25}{6}v\\\frac{6}{3}=25v\\v=\frac{2}{25}[/tex]

Answer:

v = 2/25

Step-by-step explanation:

We have given the equation:

-(2/3)v-1=(7/2)v-(4/3)

We have to solve it for v.

-(2/3)v-1=(7/2)v-(4/3)

(7/2)v+(2/3)v = -1+(4/3)

Multiply both sides of equation by 6 we get,

21v+4v = -6+8

25v = +2

Multiplying both sides by 1/25 we get,

v = 2/25

v = 2/25  is the answer.

1. 8 (k=-2)

2. 8 (k=-0.5)

3. 8 (k=-2)

4. -15 (k=3)

Answer: The library is 3,000 meters away.

Step-by-step explanation:

The solution of this exercise can be obtained by making the conversion from kilometers to meters.

You know that the library is 3 kilometers away.

Let's remember  that 1 kilometer has 1,000 meters.

Then, the conversion from 3 kilometers to meters can be made by this proccedure:

3 kilometers to meters:

[tex]=(3\ kilometers)(\frac{1,000\ meters}{1\ kilometers})\\\\=3,000\ meters[/tex]

Then the library is 3,000 meters away.

Answer with explanation:

Census Evaluates number of people Living in the United States.

There are two kinds of Data

1. Qualitiative----Which Says about the Quality Possessed by variate in Data set.

2. Quantitative----Variate in Data set is represented through numerical value.

    Quantitative Data set has two attributes

(a) Discrete Data Set

(b) Continuous Data set

In this Question , it has been asked about number of people living in United states , which is Numerical Representation.As when number of People will get counted , it will keep on increasing, but population measurement which is represented by Natural number can't be continuous.

So, it is Quantitative data.

Option (B)--- Quantitative data.

Answer:

20 5/8 lbs

Step-by-step explanation:

Multiply 5 1/2 by 3 3/4

1. convert the mixed numbers to improper fractions

     5 1/2 = 11/2

    3 3/4 = 15/4

2. Multiply numerator by numerator and denominator by denominator

   11*15 = 165

    2*4 = 8

                    165/8

3. divide to convert back to mixed number:

    165/8 = 20 5/8

To find out how much dog food you have, multiply the weight of one bag by the number of bags. The required answer will be 8 1/4  or 20.25 pounds of dog food.

To find out how much dog food you have, you can multiply the weight of one bag by the number of bags. In this case, one bag weighs 5 1/2 pounds, and there are 3 3/4 bags. To multiply these fractions, convert them to improper fractions, multiply the numerators together, and multiply the denominators together. Then, divide the product of the numerators by the product of the denominators. So, 5 1/2 multiplied by 3 3/4 is equal to 33/4 pounds or 8 1/4 pounds of dog food.

https://brainly.com/question/5992872

#SPJ2

Replace x with a^2:

7(a^2)^2 - 8

Multiply the exponents:

7a^4 - 8

Howdy!

I just finished taking the quiz and found that the correct answer is:

10[tex]\pi[/tex]

√101

9.92749...

0.99853...

I hope this helped! :D

The numbers, from greatest to least, are 9.92749....., √101 (approximately 10.0499), 10√ (approximately 3.1623), and 0.99853....... The principles of significant digits are important in ordering these numbers to ensure accuracy without introducing errors by rounding.

First, we need to evaluate the values given to us:

Now we will order them from greatest to least:

We keep in mind the principles of significant digits when we compare or order these numbers.

As evident from the provided reference information, it is important not to introduce errors by unnecessary rounding.

The correct answer would be c) GDFEABC

Please mark brainliest

Answer:

The third option: GDFEABC

Step-by-step explanation:

Just follow the letters around in a circle. ABCDEFG works, it goes from one point to the next, so does EDCBAGF, just in the other direction with a different start point. The second option also circles around perfectly fine. The third option, GDFEABC is the only one that jumps around, G to D skips over 2 points, F & E.

A test score of 30 may not be typical as it falls within the lower 30% of scores achieved by students. Higher scores are generally preferred.

30 may not be considered a typical test score because it falls within the range of scores that only 30% of students achieved. According to the given information, 70% of students answered 16 or fewer questions correctly, while only 30% answered 16 or more questions correctly.

In addition to this, higher percentiles that generally indicate higher scores, are typically considered better for most of the students. Therefore, a higher test score would be desirable for most students.

https://brainly.com/question/11387559

#SPJ12

Answer:

Total cost is $437.92

Step-by-step explanation:

Rectangular area=125•40=5000 yd²

Two equal semicircles=one single circle

Area of circle=πr²=20²•π=400•3.14=1256 yd²

Total field area=circle+rectangle=6256yd²

Cost=area•0.07yd²=6256•0.07=437.92

$8.00. Hope this helps!

Answer:

0.65

Step-by-step explanation:

Complement of an event is defined as "all the other outcomes that are not in the given event"

So complement of event A will be all the outcomes that are not in event A.

Probability of event A is given to be 0.35

P(A) = 0.35

The sum of probabilities of an event and its compliment is always equal to 1

So,

P(A) + P(A') = 1

Where, A' represents the compliment of A

So, from here we can write:

P(A') = 1 - 0.35

P(A') = 0.65

Therefore, the probability of the complement of A is 0.65

Answer:

0.65

Explanation:

Probability of an event P(A) shows the chances for this event to actually happen or occur

Probability of the complement of an event P'(A) shows the chances for this event not to happen or occur

The sum of the probability of a certain event and its complement is ALWAYS equal to 1

This means that:

P(A) + P'(A) = 1

In the problem, we are given that P(A) = 0.35

Substitute in the above equation to get P'(A) as follows:

P(A) + P'(A) = 1

0.35 + P'(A) = 1

P'(A) = 1 - 0.35

P'(A) = 0.65

Hope this helps :)

"y = -3x + 26" is the correct answer.

the answer would be "y = -3x + 26"

Answer:

5000 milliliters per minute

Step-by-step explanation:

Answer:

12 to 18

Step-by-step explanation: