hello i need help with ym math today please and thanks

Answer:

d. Stratified Sampling

Step-by-step explanation:

Stratified Sampling is a form of sampling in which the researcher selects a population sample based on a demographic factor or strata such as race or gender. From the different strata, a random sample is then made such that each group or subpopulation is represented in the final sample.

It should be noted that retaining the percentages while selecting a randomized sample is essential to stratified sampling.

Hence, in this case, when the researcher obtains a list of all enrolled freshmen, manipulates the list so that females appear twice as often as males, and then selects from this list, this is an example of stratified sampling

Step-by-step explanation:

I would suggest graphing the function, as I did, and you will find the function is an inverted parabola.

The function is increasing at points along the function that have a positive slope.  Imagine a line tangent to the function where m is > zero

based on that and the graph you can see that the function is increasing with a positive slope at all points less than zero     x<0  answer B

The answer is 2.50. This, 250% in deciaml form is 2.50, in improper fraction form is 52 and as a mixed number it is 2 12. 2 1 2.

Answer:

Permutation without repetition

Step-by-step explanation:

The order of the cards matter, which makes it a permutation, but since none of the cards are exactly the same, repetition isn't allowed/possible

The problem is of the type permutation without repetition.

What is permutation and combination?

Permutation and combination are the methods used in counting how many outcomes are possible in various situations. Permutations is used in the case of arrangements and combinations is used in the case of selections.

In the given scenario, the order of cards is a priority therefore, permutation will use.

Also, the cards are not repeating in the scenario.

Therefore, the sequence is permutation without repetition.

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The measurement of the hypotenuse is obtained as 9 units using the Pythagoras theorem.

What is Pythagoras Theorem?

In a right-angled triangle, the square of the hypotenuse side is equal to the sum of the squares of the other two sides, according to Pythagoras's Theorem. These triangle's three sides are known as the Perpendicular, Base, and Hypotenuse. Due to its position opposite the 90° angle, the hypotenuse in this case is the longest side.

According to the graph -

The perpendicular measures 4 units.

The base measures 3 units.

To find the hypotenuse g apply the Pythagoras theorem -

(hypotenuse)^2=(base)^2+(perpendicular)^2

(g)^2=(3)^2+(4)^2

(g)^2=9+16

(g)^2=25

g=[tex]\sqrt{25}[/tex]

g=5

Therefore, line segment g measures 5 units.

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Step-by-step explanation:

x²-4x+3x-12

x²-x-12.

2s²+4s-4s-8

2s²-8

Answer:

I think it is D

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

it the only one with an area of 17 square inches

Answer: Polygon A is 17 Square units

Answer:

m = 13 or greater

Step-by-step explanation:

20 - 7 = 13

13 is the minimum value for m to satisfy the inequality.

Answer:

m ≥ 13

Step-by-step explanation:

m+7 ≥ 20

Subtract 7 from both sides:

m+7-7 ≥ 20-7

m ≥ 13

2.2 laps is a 1 1/2 mile race.

When a driver or a runner makes one trip around the track i.e. one full circle it is called lap.

Given a lap around a track is 2/5 of a mile.

1 lap =2/5 mile

x lap = 11/2 mile

x lap =(11/2) ÷(2/5)

x lap = 11/5 or 2.2

Thus 2.2 laps is a 1 1/2 mile race.

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Answer:

Step-by-step explanation:

As per table we have:

32 students in 1 school bus

Answer:

9.3

Step-by-step explanation:

Answer:

9.3

Step-by-step explanation:

[tex]A^{2} +B^{2} =C^{2}[/tex]

[tex]6.1^{2} +7^{2} =C^{2}[/tex]

[tex]37.21+49=C^{2}[/tex]

[tex]86.21=C^2[/tex]

[tex]9.28493403315=C[/tex]

[tex]9.3=C[/tex]

Step-by-step explanation:

48 is the answer it is correct check it

Answer:

Step-by-step explanation:

When increasing the power of an integer by another power, you should multiply both powers to find the total power that the integer should be raised to. In this case therefore:

= 3 * 2

= 6

So the numerator will be 8⁶

When dividing the same integers raised to powers, you should subtract the power of the divisor from the power number being divided.

In this case therefore, you are to subtract (-5) from 6 (calculated in first part).

= 6 - (-5)

= 6 + 5

= 11

Another way of writing the above will therefore be: 8¹¹.

The most common speed of a car driving through the intersection is 30.0 mph which is indicated by the Mode.

A mode of data is defined as an observation with the highest frequency among the values that appear most frequently in the given data.

In the case of ungrouped data, all that is required is to find the observation that happens most frequently.

A traffic radar records the speed of cars driving through an intersection. It records these statistics:

Mean = 36.2 mph

Median = 28.5 mph

Mode = 30.0 mph

As per the question, a car driving through the intersection at 30.0 mph is the most common speed.

This is indicated by the Mode which is the value that appears most frequently in a data set.

Hence, the correct answer would be an option (C).

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Answer:

at least 226.2

Step-by-step explanation:

Add the 2 volumes of the scoops, one scoop is 113.1

The decimal value of the ratio for A is greater than for B. Then mixture A is redder.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

Two red dye and water combinations are created by a science teacher. For every 20 mL of water in Mixture A, 3 mL of red dye is present. For every 30 mL of water in Mixture B, 4 mL of red dye is present.

The ratio of the red dye to water for A is given as,

⇒ 3 / 20

⇒ 0.15

The ratio of the red dye to water for B is given as,

⇒ 4 / 30

⇒ 0.133

The decimal value of the ratio for A is greater than for B. Then mixture A is redder.

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Answer: 18 different combinations

Step-by-step explanation: When finding out combinations, you just multiply all the numbers. In this case, it would be 3x2x3 which equals 18. Please mark brainliest <3

Answer: The correct answer is C. Jana has a higher ratio of hits to total attempts, so she has a better batting average. This can be calculated by dividing the number of hits by the number of attempts: Jana's batting average is 7/10 = 0.7, and Tasha's batting average is 10/16 = 0.625. Since 0.7 is greater than 0.625, Jana has a higher batting average.

Answer:

17/5÷23/8= 1  21/115

The answer is 1  21/115

Answer:

[tex]y1 = 4 \\ x1 = 3[/tex]

[tex]y - y1 = m(x - x1)[/tex]

[tex]y - 4 = 0(x - 3)[/tex]

[tex]y - 4 = 0[/tex]

[tex]y = 4[/tex]

Answer:

about 11 or 12, the specifically 11.8

Step-by-step explanation:

hope that helps dont know how to do the inequality part tho

Therefore , the solution of the given problem of function comes out to be satisfies the given function is x=9 and y=21.

Any input will only result in one or zero outcomes for the function. The expression does not define the function if there are several outputs for a given input. Each value of x must have only one output value of y variable in order for anything to be a function.

Here,

Given : A table of values of x and y

To find : the function is linear or not

Thus,

F(x) = y -3x =0

So,

Putting the values of x and y in given function

The value which satisfies the given function is x=9 and y=21.

Therefore , the solution of the given problem of function comes out to be

satisfies the given function is x=9 and y=21.

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Answer:

20

Step-by-step explanation:

(6a + 10) = 130

(6 x 20) + 10 = 130

120 - 10 = 130

130 = 130

Step-by-step explanation:

1. a) q=4+0.8(7)

q=4+5.6

q=9.6

b) q=4+0.8(100)

q=4+80

q= 84

2. a) 12=4+0.8p

-4 -4

8=0.8p

0.8 0.8

10=p

b) 60=4+0.8p

-4 -4

56=0.8p

0.8 0.8

70=p

Answer:

Q1. a) q= 9.6

b) q= 84

Q2. a) p= 10

b) p= 70

Step-by-step explanation:

Substitute the equation with the given value and solve the equation to arrive at the answer.

Q1. a) q= 4 +0.8p

When p= 7,

q= 4 +0.8(7)

q= 4 +5.6

q= 9.6

b) q= 4 +0.8p

When p= 100,

q= 4 +0.8(100)

q= 4 +80

q= 84

Q2. a) q= 4 +0.8p

When q= 12,

12= 4 +0.8p

0.8p= 12 -4 (-4 on both sides)

0.8p= 8

p= 8 ÷0.8 (÷0.8 on both sides)

p= 10

b) q= 4 +0.8p

When q= 60,

60= 4 +0.8p

0.8p= 60 -4 (-4 on both sides)

0.8p= 56

p= 56 ÷0.8 (÷0.8 on both sides)

p= 70

Answer:

1) A = 547.1136, C = 82.896

2) A = 678.5226, C = 92.316

3) A = 844.5344, C = 102.992

4) A = 1554.49625, C = 139.73

5) A = 1561.4906, C = 140.044

6) A = 994.8776, C = 111.784

Step-by-step explanation:

1)

[tex]A = \Pi (\frac{D}{2})^2 = 3.14 * (\frac{26.4}{2})^2 = 3.14 * 13.2^2 = 547.1136[/tex]

[tex]C = \Pi D = 3.14 * 26.4 = 82.896[/tex]

2)

[tex]A = \Pi r^2 = 3.14*(14.7)^2 = 678.5226[/tex]

[tex]C = 2\Pi r = 14.7*2 * 3.14 = 92.316[/tex]

3)

[tex]A = \Pi (\frac{D}{2})^2 = 3.14 * (\frac{32.8}{2})^2 = 3.14 * 16.4^2 = 844.5344[/tex]

[tex]C = \Pi D = 3.14 * 32.8 = 102.992[/tex]

4)

[tex]A = \Pi (\frac{D}{2})^2 = 3.14 * (\frac{44.5}{2})^2 = 3.14 * 22.25^2 = 1554.49625[/tex]

[tex]C = \Pi D = 44.5*3.14 = 139.73[/tex]

5)

[tex]A = \Pi r^2 = 3.14*22.3^2 = 1561.4906[/tex]

[tex]C = 2\Pi r = 2 * 3.14 * 22.3 = 140.044[/tex]

6)

[tex]A = \Pi r^2 = 3.14 * 17.8^2 = 994.8776[/tex]

[tex]C = 2\Pi r = 2 * 3.14 * 17.8 = 111.784[/tex]

The slope of the line that passes through the points (-4, -6) and (1, -6) is zero and hence the line is parallel to the x-axis.

The slope is the rate of change of the y-axis with respect to the x-axis.

The equation of a line in slope-intercept form is y = mx + b, where

slope = m and y-intercept = b.

We know the greater the absolute value of a slope is the more steeper is its graph or rate of change is large.

We know slope(m) = (y₂ - y₁)/(x₂ - x₁).

Therefore, The slope of the line that passes through the points (-4, -6) and (1, -6) is,

m = (- 6 + 6)/(- 4 - 1).

m = - 0/5.

m = 0.

As the slope is equal to zero the line is parallel to the x-axis.

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The locations of the points on the number line are:

point 1: 1 step to the right of 0.

point 4: 4 steps to the right of 0.

point -3:  3 steps to the left of 0

A number lines is an horizontal straight line in which the integers are placed in equal intervals.

All positive numbers on the number line are on the right side of zero while the negative numbers are on the left side of zero.

To locate 1: starting from 0, count 1 step to the right.

To locate 4: starting from 0, count 4 steps to the right.

To locate -3: starting from 0, count 3 steps to the left.

Check the attached image to see the points.

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