A bag has 4 green cards, 9 blue cards, 3 purple cards,
and x pink card(s). Each card is a solid color. What is
the probability that a card randomly chosen from the
bag is purple?

The combined mass of the compounds is 13/12 grams

From the question, we have the following parameters that can be used in our computation:

3/4 gram sodium chloride and 1/3 gram potassium chloride

The combined mass of the compounds is then calculated as

Combined mass = sodium chloride + potassium chloride

Substitute the known values in the above equation, so, we have the following representation

Combined mass = 3/4 + 1/3

Evaluate the sum

Combined mass = 13/12

Hence, the combines mass is 13/12 grams

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Answer:

no

Step-by-step explanation:

Answer:

27y - 45 + 7z

Answer:

Step-by-step explanation:

3

Answer:

27 cubic units

Step-by-step explanation:

Answer:

[tex]The ~ volume: 27~cubic ~units[/tex] ✔︎

Step-by-step explanation:

[tex](3)(3)(3)[/tex]

[tex]Multiply[/tex]

[tex]so, your~ answer ~will ~be ~27[/tex]

༄✫༄✫༄✫༄✫༄✫༄

hope it helps...

have a great day!!

Answer:

D

Step-by-step explanation:

explanation on the other response on ur other question

Answer:

B

Step-by-step explanation:

put equation in slope-intercept formula (y=mx+b)

8x-2y=24

-8x      -8x

-2y=-8x+24

divide each side by -2

y=4x-12

the "b" in the formula is the y-intercept which is -12, therefore B is correct

Answer:

7

Step-by-step explanation:

The required probabilities are
• Exactly 2 are male = 0.08

• At least 7 are male = 0.14

• None are male = 0.60

• Less than 3 are male = 0.12

• There are 3 or 4 males = 0.019

• At least 1 is male = 0.04

Probabilities to college reported that 40% of its population is male. Nine students are selected at random.

Probability can be defined as the ratio of favorable outcomes to the total number of events.

For Exactly 2 are male = 2 * 0.04
                                       = 0.08
Similarly,
• At least 7 are male = 0.14

• None are male = 1 -0.40 = 0.60

• Less than 3 are male = 0.12

• There are 3 or 4 males = 0.12 *0.16 = 0.019

• At least 1 is male = 0.04

Thus, the required probability is given above.

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Answer:

d. III

Step-by-step explanation:

Quadrants:

In the first quadrant, both x and y are positive, that is, x > 0 and y > 0.

In the second quadrant, y is positive while x is negative, that is, x < 0 and y > 0.

In the third quadrant, both x and y are negative, that is, x < 0 and y < 0.

In the fourth quadrant, x is positive while y is negative, that is, x > 0 and y < 0.

In this question:

x < 0 and y < 0, so third quadrant, and the correct answer is given by option D.

Answer:

I'm not sure but I think it's 7

Step-by-step explanation:

28×2= 8x

8÷56=8x÷8

7=x

Answer: Her total earnings would be $28+$54=$82.

Step-by-step explanation:

Lori's base salary is calculated by multiplying her hourly rate by the number of hours she works. If Lori works 4 hours on a Tuesday and earns $7/hr, her base salary would be 4*$7=$28.

Lori's tips are calculated as 18% of her food sales. If Lori has $300 of food sales on a Tuesday, her tips would be 18%*$300=$54.

Lori's total earnings for the day would be the sum of her base salary and her tips. In this case, her total earnings would be $28+$54=$82.

[tex]15 + \sqrt{5x - 5} = f(x)[/tex]

Replace y for x and vice versa

[tex]15 + \sqrt{5y - 5} = x[/tex]

Solve for y.

[tex]15 + 5y - 5 = {x}^{2} [/tex]

[tex]15 + 5y = {x}^{2} + 5[/tex]

[tex]5y = {x}^{2} - 10[/tex]

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

[tex]f {}^{ - 1} (x) = \frac{ {x}^{2} - 10 }{5} [/tex]

If

Answer:

b

Step-by-step explanation:

The solution is : 0.4216 is the estimate of the standard deviation of the sampling distribution of b, the slope of the sample regression line for this relationship.

A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.

here, we have,

from the data given

The estimate of the standard deviation of the sampling distribution of b,

( The slope of the sample regression line for the relationship )

= 0.4216  

i.e. intersection of SE coef and water temperature )

Testing the effect of water temperature on the length of time sea otters can remain

Hence, The solution is : 0.4216 is the estimate of the standard deviation of the sampling distribution of b, the slope of the sample regression line for this relationship.

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Answer:

Area=π*r*r

π=3.14

3.14*20*20=1256

On solving the provided question we can say that - the increased value in fraction will be [tex]3\frac{1}{4}[/tex]

Any number of equal portions, or fractions, can be used to represent a whole. Fractions in standard English indicate how many units of a certain size there are. 8, 3/4. A whole includes fractions. The ratio of the numerator to the denominator is how numbers are expressed in mathematics. Each of these is an integer in simple fractions. In the numerator or denominator of a complex fraction is a fraction. True fractions have numerators that are less than their denominators. A fraction is a sum that constitutes a portion of a total. By breaking the entire up into smaller bits, you can evaluate it. Half of a full number or item, for instance, is represented as 12.

we have,

initial =  [tex]4\frac{5}{6}[/tex]

increased by =  [tex]4\frac{1}{4}[/tex]

son difference is = [tex]3\frac{1}{4}[/tex]

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Answer/Step-by-step explanation:

1. The vertex of am angle is formed when two lines join together. The vertex of the angle shown in the diagram is located outside the circle.(<R)

2. The lines that created <FRT (lines FR & TR) are secants

3. The major arc = FT = 140°

minor arc = QS = 44°

4. Formula of Exterior angles of a circle = (major arc - minor arc)/2

x = (140 - 44)/2

x = 96/2

x = 48°

Answer:

i believe the last one is right.

The resultant of subtraction of both vectors is

|r - s| = √(r² + s² - 2rscos{15})

A vector is an object that has both a magnitude and a direction.

Given is that |r| = 6 at an angle of 30° and |s| = 11 at an angle of 225°.

For the subtraction of vectors, we can write its magnitude as -

|r - s| = √(r² + s² - 2rscos{15})

Therefore, the resultant of subtraction of both vectors is

|r - s| = √(r² + s² - 2rscos{15})

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Answer:

the answer is D, Mars is one of the smallest planets

Answer:

1. What is the area of the lot that he supposed to sell?

2. What was the area of the donated lot for the right of way?

3. What was the area of the remaining lot that was actually sold?

Answer:

1.2,080 m²

2.63m²

3.2,017

4.25m²

5.81m²

Explanation:

1. A = LW

A = 65 m × 32 m

A = 2,080 m²

2. A = LW

A = 21 m × 3 m

A = 63m²

3. A = 2,080 m² – 63 m²

A = 2,017 m²

4. A = s²

A = (5m)²

A = 25 m²

5.

A = s²

A = (9 m)²

A = 81 m²

The experimental probability of spinning a white or yellow is 7/20

From the question, we have the following parameters that can be used in our computation:

Outcomes of experiments

The outcomes of experiments are given as

yellow / 5

blue / 12

green / 8

white / 9

red / 6

The experimental probability of spinning a white or yellow can be calculated using the following equation

P(White or Yellow) =P(White) + P(Yellow)

Substitute the known values in the above equation, so, we have the following representation

P(White or Yellow) = (9 + 5)/5 + 12 + 8 + 9 + 6)

Evaluate the sum

P(White or Yellow) = 14/40

Simplify

P(White or Yellow) = 7/20

Hence, the probability is 7/20

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Answer:

the aswer is A  i did this

Step-by-step explanation

Answer:

A

Step-by-step explanation:

Answer:

220

Step-by-step explanation:

formula for area of a triangle is 1/2 base times height in this case thats 1/2(10X6)  which is 30 sense there are 4 multiply 30 by 4 to get 120  then add that to the area of a square which is 10X10 or a hundred to get 220

Answer:

I love algebra anyways  

the ans is in the picture with the steps  

(hope it helps can i plz have brainlist :D hehe)

Step-by-step explanation:

The fraction of soil bags Will needs in total for all 5 raised garden beds is   9 3/8.

In mathematics, community is the study of how objects interact and relate to each other. It focuses on analyzing the relationships between elements and understanding how they interact to form each other. Also explore how changes in one element affect other elements. Community in mathematics is also about recognizing patterns, finding solutions, and exploring the impact of change. It is an integral part of mathematics and is used in many areas of study such as algebra, geometry, and calculus. This can be calculated by multiplying the number of raised beds (5) by the amount of soil required per raised bed.

(1 7/8 bag).

5 x 1 7/8

= 9 3/8 bags

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A, C, and D are the answers.

Answer:

Kindly check explanation for (1)

2.)

B. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance to support the power company claim that the mean amount of electricity for their residents is more than the national average.

Step-by-step explanation:

1.)

H0 : μ = 10290

H0 : μ > 10290

n = 153, sample mean, xbar = 10586 ; population standard deviation, σ = 2509 ; α = 0.05

Test statistic:

(xbar - μ) ÷ (σ/√(n))

(10586 - 10290) ÷ (2509/√(153))

296 / 202.84062

Test statistic (Z) = 1.46

We obtain the Pvalue :

Decision Region :

Reject H0 ; if Pvalue < α

Pvalue from Z test statistic calculator :

Pvalue = 0.072

Pvalue > α ; Hence, we fail to reject the Null ; there isn't sufficient evidence to support the power company's claim

2.)

H0 : μ = 10290

H0 : μ > 10290

n = 153, sample mean, xbar = 10446 ; population standard deviation, σ = 2509 ; α = 0.02

Test statistic:

(xbar - μ) ÷ (σ/√(n))

(10446 - 10290) ÷ (2509/√(153))

156 / 202.84062

Test statistic (Z) = 0.769

We obtain the Pvalue :

Decision Region :

Reject H0 ; if Pvalue < α

Pvalue from Z test statistic calculator :

Pvalue = 0.221

Pvalue > α ; Hence, we fail to reject the Null ;

B. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance to support the power company claim that the mean amount of electricity for their residents is more than the national average.

A line that shows the number of hair barrettes she makes and the total number of beads she uses is y = 75x.

In order to put the equation in y-intercept (y=mx+b) form and determine the equation of a graphed line, you must first determine the slope and y-intercept. The slope is the ratio of the change in y to the change in x. Find two locations on the line, and then draw a sloping triangle joining them.

A line is a perfectly straight, one-dimensional figure that extends infinity in both directions and has no thickness. To stress that a line has no "wiggles" anywhere along its length, it is sometimes referred to as a straight line or, more archaically, a right line.

Two points on the line are (2, 150) and (5, 375)

y - 150 = ( (375-150) / (5-2) )  (x-2)

y - 150 = 75 (x-2)

y = 75x

Equation of line is y = 75x

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