May someone help me please ? I don't really understand this, and I need it turned in.

Answer:

2.275%

Step-by-step explanation:

z = (x-μ)/σ, where

x is the raw score = 14.9 ft

μ is the population mean = 12.5 ft

σ is the population standard deviation = 1.2 ft

We are to find the percentage of the apple trees are taller than 14.9 ft,

This means x > 14.9, x greater than 14.9

Hence,

z = (14.9 - 12.5)/1.2

z = 2

Probability value from Z-Table:

P(x<14.9) = 0.97725

P(x>14.9) = 1 - P(x<14.9) = 0.02275

Converting to Percentage

= 0.02275 × 100

= 2.275%

Therefore, the percentage of the apple trees that are taller than 14.9 ft is 2.275%

Answer:

5

Step-by-step explanation:

The slope of the line is given by the equation slope m = 3/2

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

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

Given data ,

Let the equation of line be represented as A

Now , let the first point be P = P ( 0 , 1 )

Let the second point be Q = Q ( 2 , 4 )

Now , the slope of the line between the two points is

Slope m =  ( y₂ - y₁ ) / ( x₂ - x₁ )

Substituting the values in the equation , we get

Slope m = ( 4 - 1 ) / ( 2 - 0 )

On simplifying the equation , we get

Slope m = ( 3 / 2 )

Therefore , the value of m is 3/2

Hence , the slope of the line is 3/2

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Answer:

14 Quarts

Step-by-step explanation:

1 Gallon = 4 Quarts.

3x4 = 12 + 2 = 14 Quarts.

Answer:The student needs to score 20 points

Step-by-step explanation:

? /50= 40/100Cross multiply:100*? = 40*50⇒? = 40*50/100= 20

Answer:

63

Step-by-step explanation:

1/3 of 63= 21

and the reverse of 63 is 36

so 1/2 of 36 =18

so 21-18 =3

hence proven

The two-digit number will be 63 for the given condition.

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

1/3 of 63= 21

And the reverse of 63 is 36

so 1/2 of 36 =18

so 21-18 =3

Therefore the two-digit number will be 63 for the given condition.

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Answer:

37.7 cm

Step-by-step explanation:

C=2πr=2·π·6≈37.69911

Answer:

37.68 cm.

Step-by-step explanation:

The formula for circumference of a circle is: πd (diameter)

The radius of this circle is 6 centimeters.

To find the diameter, multiply the radius by 2.

6 × 2 = 12.

12 is the diameter.

Lastly, multiply the diameter by pi.

**3.14 IS A SUBSTITUTE FOR PI**

3.14 = 37.68.

Therefore, the circumference of this circle is 37.68 cm.

The linear equation for jj is ($7.46 - $2.66) / 5 and the cost of each bottle of juice is $0.96.

What in mathematics is a linear equation?

A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept.

                                   Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.

The first step to take in order to determine jj, is to determine the total cost of the  5-pack of juice bottles.

Cost of the  5-pack of juice bottles = Total cost before tax - cost of the bag of oranges

Cost of the  5-pack of juice bottles = $7.46 - $2.66 = $4.80

The second step is to determine the cost of each bottle of juice

The cost of each bottle of juice = Cost of the  5-pack of juice bottles / total number of bottles

$4.80 / 5

= $0.96

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Answer:

pls can you explain further

Answer:

The answer is 89.22

Step-by-step explanation:

Using multiplication as a mathematical operator, Kareem will 864 more cards and Nicole will get 24 more cards

Multiplication is a mathematical operation that involves multiplying two or more numbers together. It is one of the four basic operations in mathematics, along with addition, subtraction, and division.

In this problem, we may require the use of some mathematical operators to find the solution to the problem.

1.

He currently has 216 cards, but he needs 15 sets of cards.

1 set of card = 72 cards

Let's calculate the number of sets he currently has.

1 set of card = 72 cards

x set = 216 cards

cross multiply both sides and solve for x.

x * 72 = 216 * 1

x = 216 / 72

x = 3 sets

He currently has 3 sets of cards.

Since he wants 15 sets of cards, we will need 12 more set of cards.

The number of cards can be calculated by multiplying 12 by 72

Number of cards = 12 * 72 = 864

He needs 864 more cards.

2.

1 set of card = $27

1 set = 72 cards

But she's bringing $9 to join, we can calculate the ratio of cards she will get.

1 / 27 = x / 9

x = 9 / 27

x = 1/3

She will get 1/3 of the cards bought which will be

72 * 1/3 = 24 cards

She will get 24 cards

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All must add up to 360°

100+44=144°

360-144

= 216°

Answer:

144°

Step-by-step explanation:

Every possible triangle's 3 angles add up to 180.

So when you are given 2 angles of a triangle (100° and 44°), you can find the 3rd one by subtracting the given angles from 180°.

100°+44°=144°

180°-144°=36°

That's the missing angle inside the triangle.

We need that to find angle 1 because 2 angles that make up a straight line add up to 180°. So 180-36°=144°.

A verbal expression for the given algebraic expression are as follows:

10. The product of a and b

11. Four times the sum of x and seven

12. Twice the value of x

13. The cube of m

14. The difference between x and six

15. Eight hundred twelve

16. The value of y

17. The average of x and y

18. Three times x minus four

19. Five times the difference of a and b

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Answer:

1/2

Step-by-step explanation:

cot∅ = 1/tan∅

cot∅ =  1/2

The irrational numbers to children can be explained as the numbers  that can be written as a nonrepeating or nonterminating decimal .

What are Irrational Numbers ?

The real numbers that can be represented as a nonrepeating or a nonterminating decimal but not as a fraction, and the decimal that goes on forever without repeating.

For Example : [tex]\sqrt{2} , \sqrt{5} , \sqrt{7}[/tex] are few example of irrational numbers .

In simpler words : the irrational number is a number that is not rational. which means It is a number which cannot be written as a ratio of two integers or cannot be written as fraction.

and If a fraction has a 0 in the denominator , it is an irrational number .

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Answer:

the 2 positive of number is

Step-by-step explanation:

2_:3+23*3⅔+09=2465

The time it will take for the rescued sailors to be 57 miles from their life boat is given as follows:

3.35 hours.

Relative velocity is obtained considering the direction in which the objects are traveling, as follows:

For this problem, the sailors and the lifeboat are traveling in opposite directions, hence the relative velocity, considering each of their velocities is given as follows:

v = 14 + 3 = 17 miles.

(meaning that they get 17 miles farther each hour).

Velocity is distance divided by time, hence the time it will take for them to be 57 miles apart is given as follows:

17 = 57/t

17t = 57

t = 57/17

t = 3.35 hours.

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Answer:

y = 9.

Step-by-step explanation:

y = kx where k is a constant.

Substituting the given values:

15 = k*10

k = 15/10 = 1.5 so

y = 1.5x is the relation.

When x = 6

y = 1.5 * 6

= 9..

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

y = kx

k = 1.5 and x = 6

The value of y when x = 6 is 9.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 3 = 9 is an equation.

3x = 5 is an equation.

We have,

If y varies directly as x.

This means,

y ∝ x

y = kx

where k is the constant of proportionality.

Now,

y = 15 when x = 10

This means,

15 = 10k

k = 15/10

k = 1.5

Now,

y = kx

k = 1.5

x = 6

y = 1.5 x 6

y = 9

Thus,

y = kx

k = 1.5 and x = 6

The value of y when x = 6 is 9.

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Answer:

D)

Step-by-step explanation:

all vertical lines have an undefined slope because their denominator (after using the slope formula) is zero

Answer:

Laura has "n" amount of nickels. She receives 75 more from her grandmother.

Explanation:

(If this is not what the question meant, please let me know!)

Because the question is asking us to write a sentence for an addition problem, we need to write a sentence that involves two amounts of one thing being combined, in this case nickels.

Answer:

$64.00

Step-by-step explanation:

Let the amount for the groceries before tax be Y

If the cost inclusive of tax at 7% is $68.48, then

Y + 7% * Y = $68.48

100%Y + 7%Y = $68.48

107%Y = $68.48

Recall that 107% = 1.07

1.07Y = $68.48,

Divide both sides by 1.07

Y = $68.48/1.07

Y = $64.00

Hence the cost of the groceries before tax is $64

Answer:

[tex]-3/\sqrt{58}[/tex]

Step-by-step explanation:

tan = opposite / adjacent

opposite side is the y-coordinate of a point on the terminal side

adjacent side is the x-coordinate of a point on the terminal side

if the terminal side is in the second quadrant (the top-left quadrant), a coordinate on the terminal side would have a negative x-coordinate and a positive y-coordinate

This being the case:

the opposite side (y) would be -3 and the adjacent side (x) would be 7

using the Pythagorean theorem:

[tex]a^2+b^2=c^2[/tex]

[tex]7^2+(-3)^2=c^2[/tex]

The hypotenuse is c, so it equals [tex]\sqrt{58}[/tex]

sin = opposite / hypotenuse

so sin(theta) = [tex]-3/\sqrt{58}[/tex]

Answer:

15

Step-by-step explanation:

To find f(-3), substitute x with (-3)

f(x) = -x² - 8x

f(-3) = - (-3)² - 8*(-3)

      = - (9) + 24

       = - 9 + 24

       = 15

Answer:

15

Step-by-step explanation:

f ( x ) = - x² - 8x

Accordingly, to find the value of f ( -3 ) you have to replace x with ( - 3 ).

f ( -3 ) = - (-3)² - 8 × -3

f ( -3 ) = - 9 + 24

f ( -3 ) = 15

Answer:

Step-by-step explanation:

Given triangle EFG:

The rule for this dilation is:

The coordinates of E'F'G' are:

Options (verified with the graph):

Segment EH and segment E prime H prime both pass through the center of dilation.

The slope of segment EF is the same as the slope of segment E prime H prime.

Segment E prime G prime will overlap segment EG.

Segment EH ≅ segment E prime H prime.

answer is A gl on ur test

Answer:

1. A 2.C 3.D 4.B 5. A PORK-U-PINE

Step-by-step explanation:

a^2+b^2=c^2

Answer: c = P - a - 5

Step-by-step explanation:

P= a + 5 + c

P - a - 5= c

Answer:

Yes, that would be 0

As simple as 8-8=0

You have a great day/night too :)

The total number of quizzes in 9 weeks will be 45.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Baldwin took a total of 35 quizzes over the course of 7 weeks. After attending 9 weeks of school this quarter.

The number of quizzes in 9 weeks will be,

7 weeks = 35 quizz

1 week = 35 / 9 quizz

9 week = ( 35 x 7 ) / 9

9 weeks = 45 quizzes.

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