What is the sign of B
+ A?
Choose 1 answer
Positive
Negative
Neither positive nor negative- the sum is zero

Answer:

W=t-30

Step-by-step explanation:

If t is Monday, and Wednesday is W, then T- 30 is saying 30 less then T

Answer:

5/168

Step-by-step explanation:

Probability is the likelihood or chance that an event will occur.

Probability = Expected outcome/Total outcome.

According to the question, if the bag contains 5 red raffle tickets, 7 blue raffle tickets and 2 green raffle tickets, the total number of ticket is given as:

5+7+2 = 14tickets

The total outcome = 14.

If Jackie selects a green ticket on her first two selections, the probability of selecting a green twice from the bag and replacing it will be 2/14×2/14 = 4/48.

Note that the total number of ticket remains complete each time she selects since the ticket was always REPLACED.

If Jackie picks a red on her third selection, the probability of picking a red will be 5/14.

The probability that she selects a green ticket on her first two selections and a red ticket on her third selection will then be:

= 4/48 × 5/14

= 1/12×5/14

= 5/168

Answer:

5/686

Step-by-step explanation:

Red raffle tickets=5

Blue raffle tickets=7

Green raffle tickets= 2

Total raffle tickets=14

Three tickets were selected randomly with replacement

Probability of selecting Green tickets on her first two selections and red tickets on her third selection =propability of selecting Green raffle tickets twice and red raffle tickets once

=2/14×2/14×5/14

=1/7×1/7×5/14

=1/49×5/14

=5/686

Note: There are two green tickets and since it is selected with replacement, the total green tickets and the total raffle tickets doesn't change.

Answer:

Tuesday, then Wednesday then Monday were highest to lowest.

Step-by-step explanation:

Tuesday was positive. +°

Wed was zero     0°

Mon was negative   -°

Answer:

A) 150

Step-by-step explanation:

All the angles in a triangle must add up to a total of 180 degrees.

So we can make an equation as given below:

20+10+?=180

30+?=180

?=150

So the missing angle is 150 degrees

Answer:

150

Step-by-step explanation:

Subtract 20 and 10 to 180 because the side of a triangle(or all three sided figures) is 180 and you get 150

Answer:

clockwise and end up in the 3rd quadrant

Step-by-step explanation:

That's how you're supposed to graph angles. Also, 180<210<270, which are the parameters for the 3rd quadrant

In the coordinate plane, when you graph a positive 210  degrees angle you go option (C) counter-clockwise and end up in the 3rd quadrant

A coordinate plane is a tool used for graphing points, lines, and other objects. It functions like a map that follows directions from one point to another.

A figure which is formed by two rays or lines that shares a common endpoint is called an angle

Given,

We have to plot a positive 210 degree angle

So the movement will be in counter clockwise direction and angle 210 degrees in the third quadrant

Therefore when you graph positive 210 degrees you go in counterclockwise direction and end up in the 3rd quadrant

Hence, In the coordinate plane, when you graph a positive 210  degrees angle you go option (C) counter-clockwise and end up in the 3rd quadrant

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Answer:

Option B, -5/4x + 2

Step-by-step explanation:

Step 1:  Combine like terms inside the parenthesis

[tex]1/4(2 - 5x + 6)[/tex]

[tex]1/4(8 - 5x)[/tex]

[tex](1/4 * 8) + (1/4 * -5x)[/tex]

[tex]2 - 5/4x[/tex]

Answer:  Option B, -5/4x + 2

Answer:A contractor finds that Crew A takes 5(1/2) hours to construct a retaining wall and Crew B can do the same job in 7(1/2) hours.

If Crew A and Crew B work together, how long will it take them to construct the retaining wall?

a) Let h = the time to complete the job. Write the equation you would use to solve this problem.

:

let the completed job = 1, each will do a fraction of the job which adds up to 1

h%2F5.5 + h%2F7.5 = 1

Step-by-step explanation:f means fraction 2/5.5 2/7.5

Final answer:

Together, they will complete the wall in approximately 3.34 hours (about 3 hours and 20 minutes).

Explanation:

To determine how long it will take for crew A and crew B to construct a retaining wall together, we can use the concept of rates of work. We first find the rate at which each crew can complete the job individually and then combine their rates.

Crew A takes 5.5 hours to construct the retaining wall, which means their rate of work is 1 wall per 5.5 hours or 1/5.5 walls per hour.

Crew B takes 8.5 hours, so their rate is 1 wall per 8.5 hours or 1/8.5 walls per hour.

When both crews work together, you can add their rates:

Rate of A + Rate of B = Combined Rate

1/5.5 + 1/8.5 = Combined Rate

To find the combined rate, you find a common denominator and add the fractions:

Combined Rate = (8.5 + 5.5) / (5.5 × 8.5)

Combined Rate = 14 / 46.75

The combined rate is approximately 0.2995 walls per hour. To find the total time it takes for both crews to construct the wall, you take the reciprocal of the combined rate:

Total time = 1 / Combined Rate

Total time = 1 / 0.2995

This gives us the total time of approximately 3.34 hours (or roughly 3 hours and 20 minutes) for both crews working together to construct the retaining wall.

Answer:

your answer is 32,768

Step-by-step explanation:

Thats 8 to the 6th power divided by 8

8^6=262,144 divide that by 8 and u get 32,768

Hope this helps

X^2+8xi-16 yes correct mhm

Final answer:

To calculate the probability that Bob will draw $15 in tokens, we need to calculate the probability of him drawing a $5 token from the cup (1/3) and a $10 token from his pocket (2/3) and then multiply these probabilities to get the total probability (2/9).

Explanation:

The probability that Bob will draw $15 in tokens consists of two steps: drawing from the coin cup and then drawing from his pocket. We must calculate the probability for each stage and, finally, multiply these probabilities together to get the total probability of drawing $15.

From the cup, Bob can draw either a $1 token or a $5 token. To get a total of $15, Bob would need to draw a $5 token from the cup, since the highest value in his pocket is $25 and 1+25 is greater than 15. There are two $5 tokens in the cup among six tokens in total, so the probability of drawing a $5 token is 2/6 or 1/3.

Having drawn a $5 token, he now needs to draw a $10 token from his pocket to reach the total of $15. In his pocket, he has two $10 tokens and one $25 token, making three tokens in total. The probability of drawing a $10 token is therefore 2/3.

By multiplying these probabilities, we get the total probability of drawing $15 in tokens: (1/3) * (2/3) = 2/9.

Therefore, the probability that Bob will draw $15 in tokens is 2/9.

Answer: 50 and 2

Explaination:

50 x 2 = 100

50 + 2 = 52

Answer:

0

Step-by-step explanation:

The answer is 0. It shows up the most on the list. Also I know the awful Khan Academy brought you here.

The most frequent number of children in household is given by the mode and M = 0

The mode in statistics refers to a number in a set of numbers that appears the most often. Place all numbers in a given set in order; this can be from lowest to highest or highest to lowest, and then count how many times each number appears in the set. There are two types of modes

Multimodal and Bimodal

Given data ,

To find the most frequent number of children in a household in Cam's neighborhood, we can use a frequency table to count how many times each number appears in the data set:

A = 0, 0, 2, 1, 2, 8, 3, 0, 0

From the frequency table, we can see that the most frequent number of children in a household is 0, which appears 3 times in the data set.

And , the mode of the data set is M = 0

Therefore, the most frequent number of children in a household in Cam's neighborhood is 0.

Hence , the mode M = 0

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Answer:

They should be right angles

Step-by-step explanation:

Since it is a rectangular door, it would need right angles

Answer:

  $2355.06

Step-by-step explanation:

Use the compound interest formula, filling in the numbers you know. Then solve for the number you don't know.

  A = P(1 +r/n)^(nt)

where A is the account balance, P is the amount invested, r is the annual rate, n is the number of times per year interest is compounded, and t is the number of years.

Filling in the given values, we have ...

  4000 = P(1 +.053/52)^(52·10) = P(1.6984738)

  P = 4000/1.6984738 ≈ 2355.06

You would need to deposit $2355.06 in order to have $4000 in 10 years.

Answer:

-9

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

You can think of the negative 1 as a subtraction. What you do is ignore the negative 1, take the 8 and then subtract 1 from it.

-1+8 to 8-1

The SAME thing!

Answer:

4.11%

Step-by-step explanation:

Gain on stock a:

(21.15 × 100) × 6/100

126.9

Loss on stock b:

(14.23 × 50) × 1.5/100

10.6725

Net gain:

126.9 - 10.6725

116.2275

Total share value:

(21.15 × 100) + (14.23 × 50)

2826.5

% gain:

116.2275/2826.5 × 100

4.112064391%

your percentage gain on your 2 stock portfolio will be 4.11%.

Given,

The per share cost of stock "a" is $21.15 .

So the total cost of 100 shares of stock "a" will be,

[tex]21.15\times100=2115[/tex] dollars.

The per share cost of stock "b" is $14.23 .

So, the total cost of 50 shares of stock "b" will be,

[tex]14.23\times50=711.5[/tex] dollars.

Total investment on both the shares will be,

[tex]2115+711.5=2826.5[/tex] dollars.

Since stock "a" gained 6% today, so total gain in stock "a" will be,

[tex]\dfrac{2115\times 6 }{100}=126.9[/tex] dollars.

Now, share "b" lost 1.5% today, so total loss in stock "b" will be,

[tex]\dfrac{711.5\times1.5}{100} =10.67[/tex] dollars.

Now, overall gain in both the shares will be,

[tex]126.9-10.67=116.22[/tex] dollars.

Percentage gain will be,

[tex]\dfrac{116.22}{2826.5} \times 100\%=4.11\%[/tex]

Hence your percentage gain is 4.11%.

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Answer:

[tex]A=10x^{2} -4x+6[/tex]

Step-by-step explanation:

Givens

[tex]h=2[/tex]

[tex]w=5x^2- 2x + 3[/tex]

The area of a rectangle is defined as

[tex]A=w \times h[/tex]

Where [tex]w[/tex] is width and [tex]h[/tex] is height.

Replacing each equivalence, we have

[tex]A=2(5x^2- 2x + 3)\\A=10x^{2} -4x+6[/tex]

Therefore, the expression that represents the area of the given rectangle is

[tex]A=10x^{2} -4x+6[/tex]

Answer:

80/9

Step-by-step explanation:

The sum of the angles of a triangle is 180. This means your equation will bw:

3x+70 + 5x + x+30 = 180

Add Like Terms

9x + 100 = 180

9x = 80

x = 80/9

Answer:

2 3/4

Step-by-step explanation:

The length of Raj's string is 54 in long.

A dot chart or dot plot is a statistical chart consisting of data points plotted on a fairly simple scale, typically using filled in circles. There are two commons, yet very different, versions of the dot chart.

Given that, Kiki has a piece of string that she cuts into smaller pieces. This line plot shows the lengths of the pieces. Raj has a piece of string that is 12 as long as Kiki's third-longest piece.

The third-longest piece = 4 1/2 in

The length of Raj's string = 4 1/2 x 12 = 9/2 x 12 = 54

Hence, the length of Raj's string is 54 in long.

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Answer:6

Step-by-step explanation:

18 lengh times 10 width = 180

1,080/ 180 = 6

The sum of the first 8 items in the geometric sequence:1, 3, 9, 27, ...etc is 3280.

Step-by-step explanation:

The given is,

            sequence: 1,3,9,21,.. etc

Step:1

           The given is based on multiplication of 3 to previous number,

           ( x - previous number, next number = 3 × [tex]x[/tex] )

            First term : 1

            Second term : 1 × 3 = 3

           Third term : 3 × 3 = 9

            Fourth term : 9 × 3 =27

            Fifth term : 27 × 3 = 81

            Sixth term : 81 × 3 = 243

            Seventh term : 243 × 3 = 729

            Eighth term : 729 × 3 = 2187

Step:2

            Sum of first 8 terms [tex]= 1 + 3 + 9 + 27 + 81 + 243 + 729 + 2187[/tex]

                                              = 3280

            Sum of first 8 terms = 3280

Result:

           The sum of the first 8 items in the geometric sequence:1, 3, 9, 27, ...etc is 3280.

Answer:

equilateral triangle is a triangle with all three sides equal

isosceles triangle is a triangle with two sides of the same length

scalene triangle is a triangle in which no 2 sides have equal lengths

equiangular triangle is a triangle in which all angles are equal

triangle is the union of three segments determined by 3 noncolinear points

Answer:

Equilateral triangle : a triangle in which all three sides have the same length

Isosceles triangle : a triangle in which at least two sides have the same length

Triangle : the union of three segments determined by three non collinear points.

Scalene triangle : a triangle in which no two sides have the same length.

Equiangular triangle : a triangle in which all angles are equal

Final answer:

The hypothesis test in question is a left-tailed test based on the claim that less than 8% of the subjects would experience headaches. With a z-value of 0.233126 and a stated significance level of 0.01, the D-value of 0.592168 suggests that there is not enough evidence to reject the null hypothesis.

Explanation:

When analyzing the clinical trial data for a drug used to treat asthma, we consider the provided information regarding the subjects experiencing headaches. With 21 out of 250 subjects reporting headaches, and a claim that less than 8% would experience this side effect, we set up a hypothesis test to determine if the claim holds at a 0.01 significance level. Given that the alternative hypothesis is prop < 0.08, which strictly tests for proportions lower than 8%, this is a left-tailed test.

The test statistic provided is a z-value of 0.233126, and the decision value (D-value) is 0.592168. Since the significance level is 0.01 and the test is left-tailed, we check if the z-value falls into the critical region defined by the significance level. If the z-value corresponds to a p-value lower than 0.01, we would reject the null hypothesis. Otherwise, we would fail to reject the null hypothesis.

In the context of large-sample hypothesis tests, as noted in a paragraph mentioning that 'the large-sample 1 - PropZTest provides the approximate p-value', when the p-value from the normal approximation is close to the level of significance, the exact p-value should be calculated using binomial probabilities. However, because the statistical calculator has provided a D-value (which relates to the p-value) significantly greater than the 0.01 significance level, we have sufficient evidence to fail to reject the null hypothesis, implying that there is not enough evidence to support the claim that less than 8% of treated subjects experienced headaches.

Answer:

3.5 cm

Step-by-step explanation:

6x -1 = 4x + 6

2x = 7

x = 3.5

Answer:

Answer:

3.5 cm

Step-by-step explanation:

6x -1 = 4x + 6

2x = 7

x = 3.5

Step-by-step explanation:

Answer:

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

Step-by-step explanation:

5 which is the number of tulips divide by 15 which is the total number of flowers

(I'm not sure tho)

The experimental probability that Amelie picks a tulip next is 1/3, calculated by dividing the number of tulips (5) she has already picked by the total number of flowers picked (15).

The experimental probability that the next flower Amelie picks will be a tulip is based on her past experience of picking flowers. Since she has picked 15 flowers and 5 were tulips, we divide the number of tulips by the total number of flowers picked to get the probability of picking a tulip.

To calculate this, use the formula for experimental probability: Probability = (Number of successful outcomes) / (Total number of trials). In Amelie's case, this would be 5 tulips divided by 15 flowers, giving a probability of 1/3, or approximately 0.333.

Thus, the experimental probability of picking a tulip next is 1/3.aa

Answer:

0.73170731707

Step-by-step explanation:

Answer:

About 0.73

Step-by-step explanation:

30/41 is about 0.73

Answer:

C) 70

Step-by-step explanation:

To solve this problem, we simply use the equation provided:

[tex]x=\frac{C}{4} +37[/tex]

C= cricket chirps per minute

Lets plug the values into the equation:

[tex]x=\frac{132}{4}+37[/tex]    First, divide 132 by 4.

[tex]x= 33 +37[/tex]      Next, add 33 and 37.

[tex]x=70[/tex]

The estimated temperature is 70 degrees.

Answer:

0,32

Step-by-step explanation:

Answer:

5√3

Step-by-step explanation: