(1, 3) and (-3,-5)
Write a linear equation that passes through the given two points

Answer:

700 turns

Step-by-step explanation:

hey

______________

in 1 round distance covered = circumference

•radius = 35/100 m

•circumference = 2πr

=2×22/7×35/100

=44×5/100

= 220/100 m

220/100 m covered in 1 turn

1540m covered in 1540×100/220 = 700

hence ans is 700 turns

hope helped

_________________ PLEASE GIVE BRAINLIEST

Answer:

Approximately 700 times

The correct answer is (D) AB is 4 x 4, BA is 2 x 2.

What is order of a matrix?

The order of a matrix refers to the number of rows and columns in the matrix. If a matrix has m rows and n columns, we say that it is an m x n matrix. The order of the matrix is written as "m x n".

In general, if A is an m x n matrix and B is an n x p matrix, then the product AB is an m x p matrix and the product BA is an n x n matrix.

In this case, A is a 4 x 2 matrix and B is a 2 x 4 matrix. Therefore, the product AB is a 4 x 4 matrix, and the product BA is a 2 x 2 matrix.

So the answer is (D) AB is 4 x 4, BA is 2 x 2.

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Answer:

true

Step-by-step explanation:

.............................

There are 360 black counters and 306 white counter in 20:17 ratio.

Let's denote the number of black counters by B and the number of white counters by W. We know that the ratio of black to white counters is 20:17, which means that:

B/W = 20/17

We also know that there are 54 more black counters than white counters, which means that:

B = W + 54

We can use substitution to solve for B. Substituting the second equation into the first equation, we get:

(W + 54)/W = 20/17

Cross-multiplying, we get:

17(W + 54) = 20W

Expanding the left side, we get:

17W + 918 = 20W

Subtracting 17W from both sides, we get:

918 = 3W

Dividing both sides by 3, we get:

W = 306

Now we can use the second equation to find B:

B = W + 54 = 306 + 54 = 360

Therefore, there are 360 black counters in the bag.

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Answer:

5x + 4 ≤ 15

Step-by-step explanation:

Since he has only $15, he cannot surpass this amount, BUT the items he purchase CAN equal the same amount so it'd look like this ≤ 15

$4 of jelly beans is a constant

$5 per pound is a variable : 5x

5x + 4 ≤ 15

You would add 5x + 2x = 7x

Substitute 5 for x and that = 5(5)= 35 +2(5)= 10= 45

and do it for  7(5)= 35-1 = 34 too

You can't make them equal

Following the pattern in (5)(3)+(2)(3) = (5+2)(3), we could do the same thing with 5x+2x = (5+2)x.  We're basically un-distributing the common factor from each term.

And now with (5+2)x, we can add the 5 and 2 to get 7x.

If we substitute different values into 5x+2x, it works out to add up to 7 times that same substituted value. For example:

    (5)(9)+(2)(9)=45+18=63

    (7)(9)=63

If we substitute 9 into 7x-1, then we end up with 63-1 = 62.

In fact, any number we put into 5x+2x will always be one more than 7x-1.  So, no, there doesn't seem to be any value of x that would make these equal.  Since 5x+2x=7x, then 7x-1 will always be one less than 7x.

Answer:

1.10

Step-by-step explanation:

1.79

0.67

1.12 rounded is 1.10 to the nearest tenth

Therefore, approximately 68.26% of people are expected to score higher than 2.5 but lower than 3.5.

Based on the information provided, the mean (X) is 3.00 and the standard deviation (SD) is 0.50. To find the percentage of people expected to score higher than 2.5 but lower than 3.5, we will use the standard normal distribution (z-score) table.

First, we need to calculate the z-scores for both 2.5 and 3.5:
z1 =\( (2.5 - 3.00) / 0.50 = -1.0\)
z2 = \((3.5 - 3.00) / 0.50 = 1.0\)

Now, we can use the standard normal distribution table to find the probability of the z-scores. For z1 = -1.0, the probability is 0.1587 (15.87%). For z2 = 1.0, the probability is 0.8413 (84.13%).

To find the percentage of people expected to score between 2.5 and 3.5, subtract the probability of z1 from the probability of z2:

Percentage = \((0.8413 - 0.1587) x 100 = 68.26%\)

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Answer:

a.) c(t)=44t+48

b.) the total initial cost of setting up a website and maintaining it for 6 months is $312

Step-by-step explanation:

h

Answer:

1/24  ≈0.042

Step-by-step explanation:

Step-by-step explanation:

i will assume u mean y - 2x+1

y = 2x-1

parallel lines have the same slope (m) = x coefficient = 2

line general equation = y = mx + b

y = 2x + b

from the point given (4,-2)

x=4. y = -2

-2 = 2×4 +b

-2 = 8 + b

b = -10

y = 2x -10

if it is not y-2x +1

plz tell me

The probability that the sample mean will be between 181 and 185 is 0.3039.

Given,

The mean of a population, μ = 180

Standard deviation, σ = 36

Number of sample observations, n = 84

We have to find the probability that the sample mean will be between 181 and 185;

Lets convert 181 and 185 into z scores;

z = (x - μ) / (σ/√n)

z = (181 - 180) / (36/√84)

z = 1/3.93

z = 0.25

z = (185 - 180) / (36/√84)

z = 5 / 3.93

z = 1.27

Lets look z score table;

The area to the left of z = 0.25 is 0.5987

The area to the left of z = 1.27 is 0.8980

The probability that the z is between 0.25 and 1.27 would be 0.8980 – 0.5887 = 0.3039.

That is,

The probability that the sample mean will be between 181 and 185 is 0.3039.

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Answer:

y = 4

x = 104°

Step-by-step explanation:

3y = y + 8

-y -y

2y÷2 = 8÷2

2y÷2 cancels out so

8 ÷ 2 = 4

y = 4

all sides are congruent so all angles are congruent so that means that all the angles are 104°

Answer:

B=88 C=44

Step-by-step explanation:

x+48+x-44=180

2x=176

x=87

angle B= 88

angle C= 88-44=44

Answer:

It is 20

Step-by-step explanation:

1+1= 2*20=40

40/2=20

Answer:

I believe it is 1+10x. hope this helps!!

Answer:

Area = 50

Step-by-step explanation:

x2 = 36

x = 6

36 + 6 + 6 + 1 + 1 =50

the small squares = 1

(1) This series consists of terms of an arithmetic sequence:

179 - 173 = 6

173 - 167 = 6

and so on, so that the n-th term in the series is (for n ≥ 1)

a(n) = 179 - 6 (n - 1) = 185 - 6n

Then the sum of the first 53 terms is

\(\displaystyle\sum_{n=1}^{53}(185-6n) = 185\sum_{n=1}^{53}1-6\sum_{n=1}^{53}n\)

\(\displaystyle\sum_{n=1}^{53}(185-6n) = 185\times53-6\times\frac{53\times54}2\)

\(\displaystyle\sum_{n=1}^{53}(185-6n) = \boxed{1219}\)

(2) This series has terms from a geometric sequence:

-12 / 6 = -2

24/(-12) = -2

-48/24 = -2

and so on. The n-th term is (again, for n ≥ 1)

a(n) = 6 (-2)ⁿ⁻¹

and the sum of the first 19 terms is

\(\displaystyle\sum_{n=1}^{19}6(-2)^{n-1} = 6\left(1 + (-2) + (-2)^2 + (-2)^3 + \cdots+(-2)^{19}\right)\)

Multiply both sides by -2 :

\(\displaystyle-2\sum_{n=1}^{19}6(-2)^{n-1} = 6\left((-2) + (-2)^2 + (-2)^3 + (-2)^4 + \cdots+(-2)^{20}\right)\)

Subtracting this from the first sum gives

\(\displaystyle(1-(-2))\sum_{n=1}^{19}6(-2)^{n-1} = 6\left(1 -(-2)^{20}\right)\)

and solving for the sum, you get

\(\displaystyle3\sum_{n=1}^{19}6(-2)^{n-1} = 6\left(1 -(-2)^{20}\right)\)

\(\displaystyle\sum_{n=1}^{19}6(-2)^{n-1} = 2\left(1 -(-2)^{20}\right)\)

\(\displaystyle\sum_{n=1}^{19}6(-2)^{n-1} = 2\left(1 -(-1)^{20}2^{20}\right)\)

\(\displaystyle\sum_{n=1}^{19}6(-2)^{n-1} = 2\left(1 -2^{20}\right) = 2-2^{21} = \boxed{-2,097,150}\)

Answer:

look at the picture i have sent

The function is f(x) = -2x + 5, and the constants m and b are -2 and 5, respectively.

Given the function f(x) = mx + b, where m and b are constants, we know that:

limx→2 f(x) = 1

limx→3 f(x) = -1

Using the definition of a limit, we can rewrite these statements as:

For any ε > 0, there exists δ1 > 0 such that if 0 < |x - 2| < δ1, then |f(x) - 1| < ε.

For any ε > 0, there exists δ2 > 0 such that if 0 < |x - 3| < δ2, then |f(x) + 1| < ε.

We want to determine the values of m and b that satisfy these conditions. To do so, we will use the fact that if a function has a limit as x approaches a point, then the left-hand and right-hand limits must exist and be equal to each other. In other words, we need to ensure that the left-hand and right-hand limits of f(x) exist and are equal to the given limits.

Let's start by finding the left-hand limit of f(x) as x approaches 2. We have:

limx→2- f(x) = limx→2- (mx + b) = 2m + b

Next, we find the right-hand limit of f(x) as x approaches 2:

limx→2+ f(x) = limx→2+ (mx + b) = 2m + b

Since the limit as x approaches 2 exists, we know that the left-hand and right-hand limits must be equal. Thus, we have:

2m + b = 1

Similarly, we can find the left-hand and right-hand limits of f(x) as x approaches 3:

limx→3- f(x) = limx→3- (mx + b) = 3m + b

limx→3+ f(x) = limx→3+ (mx + b) = 3m + b

Since the limit as x approaches 3 exists, we know that the left-hand and right-hand limits must be equal. Thus, we have:

3m + b = -1

We now have two equations:

2m + b = 1

3m + b = -1

We can solve for m and b by subtracting the first equation from the second:

m = -2

Substituting this value of m into one of the equations above, we can solve for b:

2(-2) + b = 1

b = 5

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Answer:

ASA stands for "angle, side, angle" and means that we have two triangles where we know two angles and the included side are equal.

So A

Explanation: If two angles and the included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent

9514 1404 393

Answer:

  x = 3

Step-by-step explanation:

An exterior angle is equal to the sum of the remote interior angles:

  2x^2 +3x +6 = (8x) +(3x^2 -6x)

  x^2 -x -6 = 0 . . . . . . subtract the left-side expression, put in standard form

  (x -3)(x +2) = 0 . . . . .factor

The value of x is a value that makes a factor zero. These factors are zero when x=3 or x=-2. Only positive values of x will give positive angles in this geometry. The only useful solution is ...

  x = 3

The value of k based on the information given will be k = 2.

It should be noted that the line of f(x) passes through the point (-4, 0) and (0, 4). The line of g(x) goes through (-2, 0) and (0, 4).

The slope of x will be:

= (4 - 0)/(0 + 4)

= 4/4

= 1

By using slope point form, y = kx + 4.

Substitute x = 2.

g(-2) = -2k + 4 = 0

2k = 4

k = 4/2 = 2

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The total distance travelled by dust in the given time of 4.0 minutes at the spin rate of 500rpm is equal to 26,400cm.

Spin rate of the cd is equal to 500rpm

distance of piece of dust from the center = 2.1 cm

Distance traveled by a point on the CD that is 2.1 cm from the center in one revolution =  circumference of the circle with a radius of 2.1 cm,

C = 2πr

   = 2π(2.1 cm)

   ≈ 13.2 cm

Distance traveled by the dust in one revolution is 13.2 cm.

Calculate the number of revolutions that the CD makes in 4.0 minutes.

  1 minute = 60 seconds

⇒ 4.0 minutes = 4.0 x 60

⇒4.0 minutes = 240 seconds

The CD rotates at a rate of 500 revolutions per minute,

In 4.0 minutes it will rotate,

500 x 4.0

= 2000 times.

The total distance traveled by the dust in 4.0 minutes is,

distance traveled per revolution x number of revolutions

= 13.2 cm/rev x 2000 rev

= 26,400 cm

Therefore, the total distance traveled by the dust in 4.0 minutes is 26,400 cm.

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Answer:

3/32

Step-by-step explanation:

The slope is found by

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

   = ( 19-22)/(-20-12)

   = -3/-32

   = 3/32

The factors of the trinomial (x^2 - 3x - 4) are (x + 1) and (x - 4). The above procedure has been done to factorize a trinomial with the help of the grouping method.

A trinomial is a polynomial that consists of three terms that are either added or subtracted. To determine the factors of a trinomial, it is essential to factorize the trinomial. Factoring the trinomial will enable us to obtain its roots or zeroes.To factor a trinomial, we group it into two binomials.

Thus, the factors of the trinomial (x^2 - 3x - 4) are (x + 1) and (x - 4). The above procedure has been done to factorize a trinomial with the help of the grouping method. One of the most common procedures used in factoring trinomials is the quadratic method, which involves factoring a quadratic trinomial with a leading coefficient of 1. The quadratic formula is utilized for this purpose, and it is expressed as follows:ax²+bx+c, a≠0x = [-b ± sqrt(b²-4ac)]/2a.

As a result, factoring trinomials involves converting a polynomial into its factor form, which can then be utilized to determine its roots or zeroes. A trinomial is a three-term polynomial that contains a coefficient for x^2, a coefficient for x, and a constant. By factoring, we can transform a trinomial with three terms into the product of two binomials, allowing us to calculate its roots and factors.

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A total of 3 comparisons are required to find 42 using binary search in this particular array.

In binary search, the number of comparisons required to find a target value depends on the size of the array and the position of the target value within the array.

In this case, we have an array with 13 elements. In the first comparison, we compare the target value (42) with the middle element of the array.

The first comparison: 42 is compared with the middle element 8.

Since 42 is greater than 8, we can eliminate the first half of the array and continue the search in the second half. Now we have an array with 6 elements.

The second comparison: 42 is compared with the middle element 21.

Since 42 is greater than 21, we can again eliminate the first half of the remaining array and continue the search in the second half. Now we have an array with 3 elements.

The third comparison: 42 is compared with the middle element 42.

We have found the target value in the third comparison.

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Answer: $1.23

Step-by-step explanation: to find the cost of one pound we need to divide 6 pounds by how much it costs so, 6 ÷ 4.86= 1.23.

Answer:

yes it's proportional

Step-by-step explanation:

because you add 50 to every roll

Answer:50

Step-by-step explanation:

80+2x=180

subtract 80 from both sides: 2x=100

divide both sides by 2: x=50