Help me please, thank you very much

The mean temperature change between the two cold seasons is (b) went up by 0.3°

The given parameters are:

2011-2012:

2012-2013:

The mean is calculated as

Mean = Sum/Count

So, we have

2011 - 2012 mean = (61.1 + 51.9 + 53.6 + 56.5)/4

Evaluate

2011 - 2012 mean = 55.8

Also, we have

2012 - 2013 mean = (64.2 + 56.8 + 48.3 + 55.1)/4

Evaluate

2012 - 2013 mean = 56.1

The difference in these mean values are

Difference = 56.1 - 55.8

Evaluate

Difference = 0.3

Hence, the mean temperature change between the two cold seasons is (b) went up by 0.3°

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Explicit formula is [tex]a_{n}[/tex] =a + (n-1)d

Here in the explicit formula of the sequence -2, 7, 16, 25....

Formula

[tex]a_{n}[/tex] = a +(n-1)d

In the formula, n is any term number and a(n) is the nth term.

This formula allows us to simply plug in the number of the term we are interested in, and we will get the value of that term.

To find the 5th term, for example, we need to plug n = 5 into the explicit formula.

common difference(d) = 7 - (-2) = 16- 7 = 9

[tex]a_{5}[/tex] = -2 + 9( 5-1)

  = -2 + 36

  = 34

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Answer:

if the question is if the ball might be redor at least one of the balls will be red than yes I thik at least of them will be red if my answer helps at all.

Answer:

b

Step-by-step explanation:

you can only combine like terms when they have the exact same variable ,

a variable can not add to any number which does not have any variable can not add to a variable.thqt is the way of my understanding

Answer: The linear regression equation which models the relationship between homework grade and test grade and the predicted homework grade are :y = 1.20x - 14.32Predicted, x = 69Using technology, the linear model can be obtained using either excel or a linear regression calculator. Using a linear regression calculator which gives the linear equation in the form :y = bx + c y = 1.20x - 14.32y = Test grade ; x = homework grade Slope, b = 1.20 ; intercept, c = - 14.32 Using the model equation obtained : Test grade, y = 68Homework grade, x y = 1.20x - 14.32 68 = 1.20x - 14.32 68 + 14.32 = 1.20x 82.32 = 1.20x x = (82.32 ÷ 1.20)x = 68.6x = 69 (nearest integer) Therefore, the estimated homework grade for a test score of 68 is 69

Step-by-step explanation: hope u get an a+!

The coordinate of C=(4,0).

The basic formula for the area of a triangle is equal to half the product of its base and height, i.e., A = 1/2 × b × h.

Given:

ΔABC with

A(3, 0), B(7, 3)

let the coordinate of c(x, y)

Also, Perimeter of triangle = 2 * Area of triangle

Area of triangle=1/2 * b * h

Area=1/2 * 4 * 3

Area=1/2 * 12

Area=6 units

Perimeter= AB + BC + CA

Now,

Now, using distance formula

AB = √(7-3)² + (3-0)²

AB = √16+9

AB= 5 units

Perimeter of triangle=5+4+3

Perimeter =12

So, the coordinate of C=(0+4,0)

C=(4, 3-3)

C=(4,0)

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In order to get standard deviation of 15. Subtract 68 from everybody's score, then divide these values by 15.

The square root of the variance is used to determine the standard deviation. An alternative method of calculating it is to identify the mean of a data set, compare each data point to the mean, square the differences, add them all together, divide by the number of points in the data set minus 1, and then compute the square root.

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Mr. Olsen uses an unusual grading system in his class. After each test, he transforms the scores to have a mean of 0 and a standard deviation of 1. Mr. Olsen then assigns a grade to each student based on the transformed score. On his most recent test, the class's scores had a mean of 68 and a standard deviation of 15. What transformations should he apply to each test score? Explain.

Answer:

2 pen cost £84 each _ 2 ×84=168

3 folders cost £1.35 each_3×1.35=4.05

1 pencil cost £

Answer:

2(x+6)

Use the distributive property to multiply 2 by x+6.

2x+12

Step-by-step explanation:

Answer:

2x+12

Step-by-step explanation:

you simply times what is inside the bracket with what is outside

2×x= 2x

2×6= 12

then just put them back to where they were before without the brackets so:

X+6--->2x+12

hope this helps lol

The expression that is a difference between two terms is:

5y - 7

An algebraic expression should have at least one variable, and here we know that we should find a difference (remember that a difference is a subtraction).

And it must have two terms, then the expression is something like:

A - B

Such that A or B depend on the variable.

With this in mind, we can see that the correct option (the only subtraction with two terms) is the first one:

5y - 7

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The equation of the line in point-slope form, which passes through the pair of points located at (0 , 0) and (-4 , -5), is y + 5 = 5/4(x + 4).

The equation of a line can be expressed in three different forms: standard form, slope-intercept form, and point-slope form.

The standard form of an equation of a line is expressed as ax + by = c, where a and b, if all possible must be integers, are the coefficients of variable x and y, respectively, and c is a constant. Meanwhile, slope-intercept form is given by the formula y = mx + b, where m is the slope of the line and b is the y- intercept. On the other hand, given the slope m and a point on the line (x , y), we can express the equation in point-slope form, (y - y1) = m(x - x1).

Getting the slope of the two points: (0 , 0) and (-4 , -5)

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

m = (-5 - 0)/(-4 - 0)

m = -5/-4

m = 5/4

Using the point slope form, plug in the values of the slope and Point A to set up the equation.

(y - y1) = m(x - x1)

where m = 5/4 and (x1 , y1) = (-4 , -5)

(y - -5) = 5/4(x - -4)

y + 5 = 5/4(x + 4)

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Answer:

I hope it's helpful.........

Step-by-step explanation:

In order to get answer of this question, we should use the distance formula. So, what is that formula? let us see the formula and simplify to get the answer :)

[tex]{ \red{ \tt{given}}}[/tex]

[tex]{ \orange{ \tt{(1, - 1)}}} = { \green{ \tt{(x1,y1)}}}[/tex]

[tex]{ \orange{ \tt{(7,8)}}} = { \green{ \tt{(x2,y2)}}}[/tex]

[tex]{ \blue{ \tt{d}}} = { \green{ \tt{ \sqrt{ {(x1 - x2)}^{2} + ( {y1 - y2)}^{2}}}}}[/tex]

[tex]{ \blue{ \tt{d}}} = { \green{ \tt \sqrt{ {(1 - 7)}^{2} + { (- 1 - 8)}^{2}}}}[/tex]

[tex]{ \blue{ \tt{d}}} = { \green{ \tt{ \sqrt{ {(6)}^{2} + {( - 9)}^{2}}}}} [/tex]

[tex]{ \blue{ \tt{d}}} = { \green{ \tt{ \sqrt{36 + 81}}}}[/tex]

[tex]{ \blue{ \tt{d}}} = { \green{ \tt{ \sqrt{117}}}} [/tex]units.

Answer:

x = 0

Step-by-step explanation:

Vertical asymptotes are vertical lines which correspond to the zeroes of the denominator of a rational function

For f(x) set the denominator = 0 and solve for x

For [tex]\frac{1}{x^2}[/tex]

set x² = 0

x = √0  = 0 which is the vertical asymptote

Answer:

x = 0

Step-by-step explanation:

The Vertical asymptotes are vertical lines which correspond to zeroes of denominators.

For f(x) set the denominator = 0 and solve for x

For \fract {1}{x^2}

you set x² = 0

x = √0 = 0 which is the vertical asymptote

The required linear equation is of the form 54.5 + 5 g = 74 , and Caroline can use 3.9 gigabytes of data to stay within budget.

There are about one or two variables in a simple linear equation. In a linear equation, no variable can be multiplied by a numerical  value that is greater than one used as the fraction 's denominator.

Let us consider that Caroline uses g gigabytes of data for the month.

Therefore total cost incurred by her in one month = 54.5 + 5g

She wants to keep the value of her monthly bill at $ 74.

Therefore we can write a linear equation to solve this problem:

    54.5 + 5 g = 74

or, 5 g = 74 - 54.5

or, g = 19.5 ÷ 5

or, g = 3.9

Therefore Caroline can get maximum of 3 gigabytes of data if she wants to keep the budget below $74 .

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The probability that the camper is heading in the N to NE direction when a camper lost in the woods points his compass in a random direction is 1/8.

As given,

Compass is divided into 8 sectors N→NE→E→SE→S→SW→W→NW→N

Whole compass represents the circle with area 360 degrees

Area of each sector is equal to 45 degrees

Probability that the camper is heading in the N to NE direction

=45/360

=1/8

Therefore, the probability that the camper is heading in the N to NE direction when a camper lost in the woods points his compass in a random direction is 1/8.

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Answer:

c

Step-by-step explanation:

If you look at the two points on the graph you can see that the point that crosses the y axis is at -4

If you use the two points and count the slope you see that it is down 5 over 6 which gives it a slope of -5/6

Area of hexagon is 93.531cm².

In the given statement is:

A regular hexagon is inscribed in a circle with a diameter of 12 centimeters.

Diameter of a circle = 12 cm.

⇒Radius of a circle = 6cm.

Length of side of hexagon = 6cm

Area of regular hexagon = (3/2) × √3 × (side)²

⇒Area of regular  hexagon =  (3/2) × √3 × (6)²

                                              = (3/2) × √3 ×36

                                              = 54 × √3

                                              = 93.531cm².

Hence, area of hexagon is 93.531cm².

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Answer:

which is divisible by manufacturers are called composite numbers

Answer:

Not possible without knowing what the spinners are

Answer: The new tire is 7/32 of an inch deeper, or twice as deep.

Step-by-step explanation: The answer can be found by subtracting the old tire length from the new tire length. We must first find a common denominator. To do that, we multiply both the top and bottom of 7/16 by two and get 14/32. Now we subtract 7/32 (old tire) from 14/32 (new tire) to get 7/32.

The 10th term of the geometric sequence with a(11) = -5 and r = -1/2 is a(10) = 10.

A geometric sequence is a sequence of numbers where the nth term is obtained by multiplying the (n-1)th term by a constant, called a common ratio (r). Mathematically, it can be expressed as:

a(n) = a(n-1) . r

So, if  a(1), a(2), a(3), ..., a(n) is a geometric sequence, then:

a(2) = a(1) . r

a(3) = a(1) . r

and so on.

In the problem, the given parameters are: a(11) = -5 and r = -1/2, and we need to find a(10).

Using the above recursion:

a(11) = a(10) . r

-5 = a(10) . (-1/2)

Multiply both sides by (-2)

-5 . (-2) = a(10) . (-1/2) . (-2)

a(10) = 10

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Answer:

The flud dram (or flud drahm in British speling) is defined as 1⁄8 of a flud ones is is british words cop to nuber of a flud, and is ecactly ewelual to 3696691 ml in the U.S. cutomary 3.551632 ml in the British can of fluding can keep it from fluding over are heads and keep it safe from fluding but 3696691 is the number that you haft to use  it  order to keep it up you haft to put it in the same order

Number of Fluid Drams 88888

Number of Fluid Ounces 1 2 3 4 5

Number of Fluid Drams 8 9 10 11 12 A fluid dram is a unit of capacity. One fluid ounce is equivalent to eight fluid drams. Which table represents the relationship between number of fluid ounces a...

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0 votes

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In the apothecary system, the symbol fl ℥ represents a/an A. pound. B. grain. C. fluid ounce. D. dram

Step-by-step explanation:

35×35 may be ?? ..........

Using different mathematical operations, the price of a slice that is all vegie is calculated to be $1.25.

What are arithmetic operations?

Arithmetic operations are a field of mathematics that studies numbers and the operations on numbers that are helpful in all other disciplines of mathematics.

Given, Cost of the pizza = $10

and number of slices = 8 (half pepperoni and half veggie)

So, number of slices containing veggies = 8/2 = 4

and cost of 4 slices containing all veggie= 10/2 = $5

Therefore, value of a slice containing all veggie = 5/4 = $1.25

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Answer:0-ounce package of cashews costs $8.11 is better then a 16-ounce package of cashews costs $12 , because cost per ounce for the 10-ounce package of cashews = $ is greater then cost per ounce for the 16-ounce package of cashews = $

Step-by-step explanation:

By combining the like terms, the simplified form of the expression 6r+3s+2s+4r is 10r+5s

Given,

The expression = 6r+3s+2s+4r

Rearrange the terms

6r+4r+3s+2s

Combine the like terms

6r+4r+3s+2s=(6+4)r+(3+2)s

=10r+5s

Hence, By combining the like terms, the simplified form of the expression 6r+3s+2s+4r is 10r+5s.

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