What is -12/11 = -3/?

Answer:

Step-by-step explanation:

yes it is a factor because 31 is a factor and if u add there is a one

Final answer:

Yes, 3 is a factor of 81 because the sum of 81's digits (8 and 1) is 9, which is divisible by 3. Also, since 81 is 3 raised to the power of 4, 3 is repeatedly a factor of 81.

Explanation:

To determine if 3 is a factor of 81, we can use the concept of divisibility. A number is divisible by 3 if the sum of its digits is divisible by 3. The number 81 only consists of the digits 8 and 1, and when added together (8 + 1), they equal 9. Since 9 is divisible by 3, so is 81. Therefore, 3 is indeed a factor of 81.

Additionally, the three-factor product rule can confirm this, as combining the factors 3, 3, and 3 (since 3 x 3 x 3 = 27, and 27 x 3 = 81), you end up with 81, which proves that 3 is a factor of 81.

Answer:

5.8

Step-by-step explanation:

Answer:

The solved expression is [tex]x=3+\sqrt{2}[/tex] and [tex]x=3-\sqrt{2}[/tex]

Therefore [tex]x=3\pm\sqrt{2}[/tex]

Step-by-step explanation:

Given quadratic equation is [tex]x^2-6x+7=0[/tex]

To solve the given equation by using completing the square :

[tex]x^2-6x+7=0[/tex]

Rewritting the above equation as below :

[tex]x^2-6x+7+2-2=0[/tex]

[tex](x^2-6x+7+2)-2=0[/tex]

[tex](x^2-6x+9)-2=0[/tex]

[tex](x^2-6x+3^2)-2=0[/tex]

[tex](x^2-2(x)(3)+3^2)-2=0[/tex]  ( it is of the form of [tex](a-b)^2=a^2-2ab+b^2[/tex]  heere a=x and b=3 )

[tex](x-3)^2-2=0[/tex]

[tex](x-3)^2=2[/tex]

Taking square root on both sides we get

[tex]\sqrt{(x-3)^2}=\pm\sqrt{2}[/tex]

[tex]x-3=\pm\sqrt{2}[/tex]

[tex]x=\pm\sqrt{2}+3[/tex]

[tex]x=3\pm\sqrt{2}[/tex]

Therefore [tex]x=3+\sqrt{2}[/tex] and [tex]x=3-\sqrt{2}[/tex]

The solution is x = 1 and x = -3

Solution:

Given that we have to solve the given equation by factoring

Given equation is:

[tex]x^2=2x + 3\\\\x^2 - 2x - 3 = 0[/tex]

[tex]\text{Consider the form } x^2+bx+c[/tex]

Find a pair of integers whose product is c and and whose sum is b

[tex]\text{Compare } x^2-2x-3 = 0 \text{ with } x^2+bx +c\\\\\text{We get } b = -2 \text{ and } c = -3[/tex]

Now find, a pair of integers whose sum is -2 and product is -3

The integers that satisfies this condition is -1 and 3

When we add - 1 and 3 we get 2

When multiply -1 and 3 we get -3

Thus the pair of integers are -1 and 3

Write the factored form using these integers.

[tex](x-1)(x+3) = 0[/tex]

The Zero Product Property states that if ab = 0, then either a = 0 or b = 0, or both a and b are 0

Set the factors equal to 0

[tex]x - 1 = 0 \text{ and } x + 3 = 0[/tex]

x = 1 and x = -3

Thus the solution is x = 1 and x = -3

Answer:

3x6+7x4=46 it’s correct

we can rewrite it this way : (3x6)+(7x4)=46

Question 1:

For this case we must solve the following system of equations by the method of elimination:

[tex]8x-6y=-20\\-16x+17y=30[/tex]

We multiply the first equation by 2:

[tex]16x-12y = -40[/tex]

We have the equivalent system:

[tex]16x-12y = -40\\-16x + 17y = 30[/tex]

We add the equations:

[tex]5y = -10[/tex]

We divide between 5 on both sides of the equation:

[tex]y = - \frac {10} {5}\\y = -2[/tex]

We find the value of the variable "x":

[tex]8x-6 (-2) = - 20\\8x + 12 = -20\\8x = -20-12\\8x = -32[/tex]

We divide by 8 on both sides of the equation:

[tex]x = - \frac {32} {8}\\x = -4[/tex]

Thus, the solution of the system is:

[tex](x, y): (- 4, -2)[/tex]

Answer:

[tex](x, y): (- 4, -2)[/tex]

Question 2:

For this case we must solve the following system of equations by the method of elimination:

[tex]-4y-11x = 36\\20 = -10x-10y[/tex]

We multiply the first equation by 10:

[tex]-40y-110x = 360[/tex]

We multiply the second equation by -4:

[tex]40y + 40x = -80[/tex]

We have the equivalent system:

[tex]-40y-110x = 360\\40y + 40x = -80[/tex]

We add the equations:[tex]-70x = 280[/tex]

We divide by -70 on both sides of the equation:

[tex]x = \frac {280} {- 70}\\x = -4[/tex]

We find the value of the variable "y":

[tex]-4y-11 (-4) = 36\\-4y + 44 = 36\\-4y = 36-44\\-4y = -8[/tex]

We divide between -4 on both sides of the equation:

[tex]y = - \frac {8} {- 4}\\y = 2[/tex]

Thus, the solution of the system is:

[tex](x, y): (- 4,2)[/tex]

Answer:

[tex](x, y): (- 4,2)[/tex]

Answer:

1. We can see that salesperson's weekly income is the sum of her constant weekly salary ($760) and a commission which is variable and depends on her weekly sales.

So, if we say that y is her weekly income and x is her weekly sales, we can write this as:

y = 760 + 0.075x

Note that we had to change percentage to decimal number dividing it by 100.

2  Since for each value of x there is only one corresponding value of y, we can say that this is a function. For any value of x we input there is only one solution we get - that is the main feature of function and a way to tell if something is really a function.

Since this is a function, it can also be written as:

f(x) = 760 + 0.075x

3. Domain of a function is, basically, set of all values of x for which the function can work. That practically means that, since x is weekly sale, it can not be negative (one cannot make -$500 sale, for example). However, it is possible that she doesn't make a sale one week, making it possible for x to be 0. Also, the value of her sales doesn't have to be integer (it is quite possible that she makes $673.50 sale).

All this means that appropriate domain for this function are positive real numbers including 0.

Answer:

75%

Step-by-step explanation:

42/56 = [tex]\frac{42}{56}[/tex]

Convert to decimal form:

42÷56 = 0.75

= 75%

Darren got 75% of the questions correct on his test, as 42 out of 56 simplifies to 3/4 or 75%. This percentage might place him in a higher percentile, indicating good performance.

Darren scored 42 out of 56 questions correctly on his test. To find what percent of the questions he got correct, you set up a fraction of correct answers over the total number of questions and then convert it to a percentage. The fraction for Darren's test is 42/56, which simplifies to 3/4 or 0.75 when divided. To convert this to a percentage, you multiply by 100, giving Darren a score of 75% correct on his test.

Some students might be interested in how this compares to percentile ranks. For example, if the 70th percentile for a test is 16 correct answers out of 20, this means that 70% of the students answered 16 or fewer questions correctly. Darren's score of 75% would likely place him in a higher percentile since he got a larger proportion of the questions correct, which is generally considered good.

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Answer:

see explanation

Step-by-step explanation:

To find the terms of the sequence substitute n = 1, 2, 3, 4, 10 into the rule.

n = 1 → 2(1)² = 2(1) = 2

n = 2 → 2(2)² = 2(4) = 8

n = 3 → 2(3)² = 2(9) = 18

n = 4 → 2(4)² = 2(16) = 32

n = 10 → 2(10)² = 2(100) = 200

The first 4 terms are 1, 8, 18, 32 and the 10 th term is 200

Answer:

2, 8, 18, 32.

10th term =  200.

Step-by-step explanation:

The first 4 terms of 2n^2 are

2(1)^2,  2(2)^2,   2(3)^2, 2(4)^2

= 2, 2*4, 2*9, 2*16

= 2, 8, 18, 32.

The 10th term = 2(10)^2

= 200.

This equation means what would f(x) be if x was -2. F(x) is another way to write y. So this equation can be rewritten as y = 2(-2) - 3.

y = -4 - 3

y = -7

Answer:

2(-2)-3 =-4-3 =-7

Step-by-step explanation:

Answer:

$3,750

Step-by-step explanation:

1.5% of 250,000 is 3,750

The question does NOT ask for the total price. It is just asking for commission.

Answer:

the probability answer will be 8/49.

Step-by-step explanation:

the answer probability would be equal to multiplication of the odd cases of the given probabilities.Therefore,for him to playin both the halves of the game would be 8/49.

Using Bayesian probability, we find that the probability of Patrick playing in the first half given that he played in the second half is 3/4 or 75%.

This was determined by calculating intermediate probabilities and applying Bayes' theorem.

Therefore, the probability that Patrick played in the first half given that he played in the second half is 3/4 or 75%.

Answer:

3 cases

Step-by-step explanation:

Total Money Needed = $850

Each Golf Ball = $2

Total Balls needed = 850/2 = 425 balls

Case = 24 Pack

Pack = 6 balls

So a Case has:

24 * 6 = 144 balls

They need 425 balls to sell and each case has 144 balls, so number of case needed would be:

425/144 = 2.95

We can't have 2.95 cases, so we round up to 3 cases

The correct answer is option 1: x = -4y+19

Step-by-step explanation:

Given equations are:

[tex]3x+2y=17\ \ \ Eqn1\\x+4y=19\ \ \ \ Eqn2[/tex]

When we have to solve a system of equations using substitution method we look for a variable in both of equations that is without any co-efficient as it is easy to isolate that variable in the equation and then using substitution method to solve it

We can see that in equation 2, x is without any co-efficient

So,

[tex]x+4y = 19[/tex]

Subtracting 4y from both sides

[tex]x+4y-4y = 19-4y\\x = 19-4y\\[/tex]

Can also be written as:

[tex]x = -4y+19[/tex]

Hence,

The correct answer is option 1: x = -4y+19

Keywords: Linear equations, variables

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Answer:

The correct answer is option 1: x = -4y+19

Step-by-step explanation:

Answer: ≈ 8%

Step-by-step explanation:

Total number of students = total number of boys + total number of girls

Total number of students = 88 + 75

Total number of students =  163

10.2% of the boys have blue eyes , this means that 10.2% of 88 have blue eyes

[tex]\frac{10.2}{100}[/tex] x 88 = 8.976

Since we are dealing with humans , therefore , this means that 9 boys have blue eyes.

Also , 5.3% of the girls have blue eyes means that 5.3% of 75 have blue eyes. That is

[tex]\frac{5.3}{100}[/tex] x 75 = 3.975 , therefore : 4 girls have blue eyes.

In total , 13 students have blue eyes

Therefore , to calculate the % of students that have blue eyes , we have :

13/163 x 100 = 7.975460123

Therefore : ≈ 8% of the students have blue eyes

Answer:

First of all, before writing the y-intercept you need to make sure that the equation is in slope intercept form.

x + 3y = 14

3y = 14 - x

y = 14/3 -x/3

y= -x/3 + 14/3

                         14/3 is the y-intercept

The y-intercept of the line with equation x + 3y = 14 is 4.67.

The equation of the line is in the form x + 3y = 14. To find the y-intercept, we need to set x = 0 and solve for y. Plugging in x = 0, we get 0 + 3y = 14. Simplifying the equation gives us 3y = 14. Dividing both sides by 3, we find that y = 4.67. Therefore, the y-intercept of the line is 4.67.

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Answer:

T_12 = 5(T_3)

Step-by-step explanation

T_17 = 13(T_2)

T_n = a + (n-1)d; where a=first term and d=common difference

T_17 = a + 16d

T_2 = a + d

Therefore,

a + 16d = 13(a + d)

a + 16d = 13a + 13d

16d - 13d = 13a - a

3d = 12a

d = 4a

To prove that T_12 = 5(T_3)

a + 11d = 5(a + 2d)

a + 11d = 5a + 10d

since d = 4a

a + 11(4a) = 5a + 10(4a)

a + 44a = 5a + 40a

45a = 45a

Since  LHS = RHS

Therefore; T_12 = 5(T_3)

Answer:

No, the books had more sales by 5/6 being bigger (Greater Than) than 3/4.

By converting both fractions to have a common denominator of 12, it becomes clear that there were more books than toys for sale, as 10/12 (books) is greater than 9/12 (toys).

To determine whether there were more toys or books for sale, we need to compare the fractions ⅓ (representing toys) and ⅗ (representing books). To compare these fractions, they must have a common denominator. The least common denominator for 4 and 6 is 12. Converting both fractions to have the denominator of 12, you would get:

When comparing 9/12 (toys) to 10/12 (books), it is clear that there were more books than toys for sale since 10/12 is greater than 9/12.

Answer:

[tex]DC=\frac{8}{3}\ units[/tex]

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The triangle ABD is an isosceles triangle

because

AB=BD

The segment BM is a perpendicular bisector segment AD

so

In the right triangle ABM

Applying the Pythagorean Theorem

[tex]BM^2=AB^2-AM^2[/tex]

we have

[tex]AB=5\ units\\AM=x\ units[/tex]

substitute

[tex]BM^2=5^2-x^2[/tex]

[tex]BM^2=25-x^2[/tex] -----> equation A

In the right triangle BMC

Applying the Pythagorean Theorem

[tex]BM^2=BC^2-MC^2[/tex]

we have

[tex]BC=7\ units\\MC=AC-AM=(9-x)\ units[/tex]

substitute

[tex]BM^2=7^2-(9-x)^2[/tex]

[tex]BM^2=49-(81-18x+x^2)[/tex]  

[tex]BM^2=49-81+18x-x^2[/tex]

[tex]BM^2=-x^2+18x-32[/tex] ----> equation B

equate equation A and equation B

[tex]-x^2+18x-32=25-x^2[/tex]

solve for x

[tex]18x=25+32\\18x=57\\\\x=\frac{57}{18}[/tex]

Simplify

[tex]x=\frac{19}{6}[/tex]

Find the length of DC

[tex]DC=AC-2x[/tex]

substitute the given values

[tex]DC=9-2(\frac{19}{6})[/tex]

[tex]DC=9-\frac{19}{3}\\\\DC=\frac{8}{3}\ units[/tex]

Answer:

1/3

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(3/4-2)/(1-19/4)

m=(3/4-8/4)/(4/4-19/4)

m=(-5/4)/(-15/4)

m=(-5/4)(-4/15)

m=20/60

m=2/6

m=1/3

Answer:

1/3

Step-by-step explanation:

Answer:

  37/40 = 0.925 miles

Step-by-step explanation:

The total distance Melvin walked (in miles) was ...

  5/8 + 3/10 = 25/40 + 12/40 = 37/40 . . . . miles

__

In decimal, the sum is ...

  0.625 + 0.30 = 0.925 . . . . miles

Answer:

Step-by-step explanation:

he has 120 bucks...burritos are 6 and sodas are 4

the largest number of burritos a person can afford to purchase....

120/6 = 20....he can purchase 20 burritos....but then he doesn't get any soda because thats gonna take all his money

The largest number of burritos a person can afford to purchase is 20.

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.

It is given that:-

The largest number of burritos a person can afford to purchase:-

120  /  6  =  20.

He can purchase 20 burritos....but then he doesn't get any soda because that's gonna take all his money.

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Step-by-step explanation:

Given Will ran the diagonal distance across a square field measuring 40 yards each sides .

∴The distance covered by Will was =[tex]\sqrt{40^{2}+40^2 }[/tex] yards

                                                         = [tex]40\sqrt{2}[/tex] yards=56.56 yards

Again James ran diagonal distance across a rectangle field with a length of 25 yards and a width of 35 yards.

So,distance covered by James was =[tex]\sqrt{25^2+35^2}[/tex] yards

                                                             =[tex]5\sqrt{74}[/tex] yards = 43.01 yards

∴Will ran longer distance.

∴Will ran 13.55 yards more than James.

To calculate the longer distance Will ran compared to James, find the diagonal distances each ran. Will ran approximately 13.56 yards longer.

To determine how much longer Will ran compared to James, we need to calculate the diagonal distances for each run.

Will ran 56.57 - 43.01 ≈ 13.56 yards longer than James. Thus, Will ran around 13.56 yards longer than James, as determined by subtracting the diagonal of the rectangular field from that of the square field. This calculation offers a quantitative measure of the difference in running distances, providing insight into their comparative performances.

Given AB = 4x + 5, BC = 3x - 2 and AC 9x -5

The sum of the length of any two sides of a triangle is greater than the length of third side.

Case I

AB + BC > AC

⇔4x +5 +3x -2 > 9x -5

⇔7x + 3 >9x - 5

⇔ 7x -9x > -5 -3

⇔-2x > -8

⇔x <4

Case II

if AB+AC > BC

4x +5 +9x -5> 3x -2

⇔13x >3x -2

⇔ 13x -3x> -2

⇔10x > -2

⇔x >[tex]-\frac{1}{5}[/tex]

Case III

AC+BC > AB

⇔9x - 5 +3x - 2 > 4x +5

⇔6x -7 > 4x +5

⇔6x -4x >5+7

⇔2x > 12

⇔x > 6

Answer:

you need 4 1/3 cups of flower

Answer: m = 1

Step-by-step explanation: Use the slope formula to find the slope m.

Hope this helps you out! ☺

Answer:

m = 1

Step-by-step explanation:

refer to attached picture for reference

we are given 2 points

(x₁, y₁)  = (5,7)

(x₂,y₂) = (-4,-2)

simply substitute these into the given equation for slope

m = (y₂ - y₁)/(x₂-x₁)

= (-2 -7) / (-4 - 5)

= -9 / -9

= 1

The three important tools of Federal Reserve's monetary policies are as follows:

Step-by-step explanation:

The monetary policies of the United States's central bank, Federal Reserve are the acts of the entity to influence money and raise the country's economy. These policies also helps in looking over the aspects of how the money and credits draw affects on credit rates and the overall performance of the U.S. Economy.

The three prime tools of the Federal reserve's monetary policies are the Open Market Operations, Discount Rates and the Reserve Requirements.

Open Market operations

This involves in purchase and selling process of government securities. The primary dealer with which the Reserve deals compete on the basis of prices and thus the dealer gets decided with whom the reserve deal for the day.

Discount Rates

This is the discount rate charged to depository institutions for short term loans by the Federal Reserve.

Reserve Requirements

This is the money or deposit amount the Reserve Bank must sustain in its vault or depository.