Can someone please help me!!

The perimeter of the rectangle is 29t + 5

Define Perimeter.

A perimeter is a closed path that encompasses, surrounds, or outlines either a two dimensional shape or a one-dimensional length. The perimeter of a circle or an ellipse is called its circumference.

Given,

width = 7t - 7.5

length = 7.5t + 10

we know, the perimeter of the rectangle (p) = 2 ( l + w)

put the value in given formula,

p = 2 * (7.5t + 10 + 7t - 7.5)

p = 2 * ( 14.5t  + 2.5)

p = 2 * 14.5t + 2.5 * 2

p = 29t + 5

Hence, the perimeter of the rectangle is 29t + 5

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Answer:

First five multiples of 20 are: 20,40,60,80 and 100.

First five multiples of 30 are: 30,60,90,120, and 150.

Answer: for 20 it is 20,40,60,80,100

For 30 it is 30,60,90,120,150

Step-by-step explanation:

here’s another way you can multiply 20 and 30 by 1 and above hope this will help

Answer:

17, 19 & 21

Step-by-step explanation:

Answer:

the answers i found were 17, 19 and 21

Answer:

[tex]\textsf{Slope-intercept form}: \quad y=-\dfrac{1}{4}x+30[/tex]

[tex]\textsf{Slope}: \quad -\dfrac{1}{4}[/tex]

[tex]\textsf{$y$-intercept}: \quad 30[/tex]

Step-by-step explanation:

[tex]\boxed{\begin{minipage}{6.3 cm}\underline{Slope-intercept form of a linear equation}\\\\$y=mx+b$\\\\where:\\ \phantom{ww}$\bullet$ $m$ is the slope. \\ \phantom{ww}$\bullet$ $b$ is the $y$-intercept.\\\end{minipage}}[/tex]

Given equation:

[tex]5x + 20y = 600[/tex]

To convert the given equation to slope-intercept form:

[tex]\boxed{\begin{array}{rccccccc}5x &+ & 20y & = & 600&&&\\-5x & & & && -5x &&\\\\\cline{1-8}\\& & \dfrac{20y}{20} & = & \dfrac{-5x}{20} & + & \dfrac{600}{20}\\\\&& y&=&-\dfrac{1}{4}x & + & 30\end{array}}[/tex]

[tex]\textsf{Slope-intercept form}: \quad y=-\dfrac{1}{4}x+30[/tex]

[tex]\textsf{Slope}: \quad -\dfrac{1}{4}[/tex]

[tex]\textsf{$y$-intercept}: \quad 30[/tex]

Answer:

Brand B

Explanation:

The cost for each brand is given below:

• Brand A: 20 ounces for $2.50

• Brand B: 32 ounces for $3.25

To determine the price per ounce for each brand, divide the cost by the number of ounces.

This, we see that Brand B has the lowest price per ounce.

The equation of the polynomial function is y = x² + x - 2

The polynomial function is represented on the given graph

From the graph, we can see that:

The curve of the graph crosses the x-axis at the following points

x = -2 and x = 1

This means that the equation of the polynomial function can be calculated as

y = (x - x₁) * (x  - x₂)

Where

x₁ = -2 and x₂ = 1

Substitute x₁ = -2 and x₂ = 1 in the equation y = (x - x₁) * (x  - x₂)

So, we have

y = (x + 2) * (x  - 1)

Open the brackets

y = x² + 2x - x - 2

Evaluate

y = x² + x - 2

Hence, the equation is y = x² + x - 2

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Answer:

-2

Step-by-step explanation:

hope this helps

Answer:

Slope = -2

Step-by-step explanation:

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

choose 2 points

i choose (2, -1), and (5, -7)

slope = (-7 - (-1))/(5-2)

slope = (-6)/3

slope = -2

The slope of a line indicates how steep it is. Slope is defined mathematically as "rise over run" (change in y divided by change in x).

slope of the line  = -5/4.

The line pass through the points (-3, 2) and (1, -3)

The formula for finding slope from two points (x₁, y₁) and (x₂, y₂) on a line is m = (y₂ - y₁) / (x₂ - x₁). Here, m = slope of the line

m = -3-2/1 +3 = -5/ 4

slope of the line  = -5/4.

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The value of m that makes the expression a monomial is 10/3

From the question, the given parameters are

Monomial: -xy^3m

Degree = 10

The degree of a polynomial is the highest power of the polynomial

This means that

Degree = 10

Degree = 3m

Substitute the known values in the above equation

So, we have

3m = 10

Divide both sides of the equation by 3

m = 10/3

Hence, the value of m is 10/3

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The two polygons are calculated to be similar and the correct statement to show the similarity is in option A

To show that the polygons are similar we show that

Comparing the angles

Comparing  the ratio of corresponding sides

10.5 / 7 = 12 / 8 = 6 / 4 = 9 / 6 = 3 / 2

This shows that option A is the correct choice

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Answer:

The answer would be 1.9

There really is no way to show the work on this problem since it is decimals

The average change in temperature per hour is 7.1°.

Given, the temperature in a certain city changed to 34.084°F

over 4.8 hours.

the average change in temperature per hour = ?

average temperature = change in temperature/time taken.

= 34.08/4.8

= 71/10

= 7.1°f

the change in temperature is 7.1°f

Hence the change in temperature per hour is 7.1°f.

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The required measure of x and y for the concurrent triangle is 4 and 2 respectively.

In congruent geometry, the shapes that are so identical. can be superimposed on themselves.

here,
Since the triangle is are concurrent triangle,
x + 4 = 4y - - - - (1)
x = y + 2 - - - - (2)
Solving the above system of the equation,
y + 2 + 4 = 4y
6 = 3y
y = 6 / 3
y = 2
Now put this y in equation 2
x = 2 + 2
x = 4

Thus, the required measure of x and y for the concurrent triangle is 4 and 2 respectively.

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Answer:

Step-by-step explanation:

What is the Product Rule of Exponents?When multiplying two numbers with the same base, their powers/exponents would be added.For example, .Given:(a²c)³Therefore:(a²c)³ = (a²c)(a²c)(a²c) (a²c)³ = (a²c)³ = Therefore, applying the product rule of exponents, (a²c)³ = .

It is listed below whether area or circumference needs to be calculated.

What is circumference?

The circumference of a circle or ellipse in geometry is its perimeter. That is, if the circle were expanded out and straightened out to a line segment, the circumference would be the length of the arc. The curve length around any closed figure is more often referred to as the perimeter. The term "circumference" can also refer to the circle's actual location, which corresponds to a disk's edge. A sphere's circumference is equal to the length of any one of its great circles. The distance around a circle is its circumference, however this cannot be used as a definition if, as in many introductory presentations, distance is defined in terms of straight lines.

(a) Circumference needs to be calculated.

(b) Area needs to be calculated.

(c) Area needs to be calculated.

(d) Circumference needs to be calculated.

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Answer:

-6 47/20

Step-by-step explanation:

The image point of the point (-1, 9) after the transformation R270° or y-axis as required in the task content is; (1, 9).

It follows from the task content that the image of the point under the rotation transformation; R270° be determined.

Since the pre-image point (-1, 9) exists in the 2nd quadrant, it follows that the transformation; R270° indicates a reflection over the y-axis.

Hence, only the x-coordinate of the pre-image changes sign and therefore, the image is; (1,9).

Ultimately, the image point is; (1, 9).

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Answer: QR = 21 Units

P = 2(l) + 2(w)

[tex]88= 2(4z-1) + 2(3z+3)[/tex]

[tex]88 = 8z-2+6z+6[/tex]

[tex]88 +2-6= 8z+6z[/tex]

[tex]84=14z[/tex]

[tex]\frac{84}{14} =\frac{14z}{14}[/tex]

[tex]6 = z[/tex]

[tex]QR = 3z+3[/tex]

[tex]QR = 3(6) +3[/tex]

QR = 21 Units

I WILL USE THE METHOD OF ADDITIVE INVERSE.

[tex]t - 6 + 6 = 13 + 6 \\ t = 19[/tex]

ATTACHED IS THE SOLUTION

Answer:

Step-by-step explanation:

You need to see what 13 minus 6 is and that the T value then just plug it in. The answer is 7

Answer:

346,990

Step-by-step explanation:

Answer:

0.6

Step-by-step explanation:

3/5 as a decimal is 0.6; divide the numerator by the denominator. :)

The function is increasing over the interval (-3,-1).

A table with x and f(x) values are given as:

x         f(x)

-6         34

-5          3

-4        -10

-3         -11

-2         -6

-1           -1

0           -2

1            -15

We have to check whether this function is increasing or not in the intervals  (–6, –3), (–3, –1), (–3, 0), (–6, –5).

A function is said to be increasing over an interval (x, y), if for x < y, it follows that f(x) < f(y).

Consider the intervals one-by-one.

For (-6, -3), we have the function values in between which are  34 > 3 > -10 > -11. So in this interval the function is not increasing but decreasing over the x-values in (-6, -3).

For (-3, -1), the corresponding function values are -11 < -6 < -1. Here the function values are increasing over the x-values in the interval (-3, -1).

For (-3,0), the corresponding function values are -11 < -6 < -1 >-2. Since we got -1 > -2 in the interval (-3,0), the function is not increasing here also.

For (-6,-5), the corresponding function values are 34 > 3. So the function is not increasing but decreasing.

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Different possible outcomes after rolling all six dice is equal to 36. Total number of possible outcomes for each trial is equal to 6.

As given in the question,

For Math Assignment

The total set of standard dice = 6

After rolling each dice,

Possible outcomes after each trial  = { 1,2,3,4,5,6 }

The total number of possible outcomes for each trial = 6

Different possible outcomes after rolling all six dice = 6 × 6

                                                                                = 36

Therefore, different possible outcomes after rolling all six dice is equal to 36. Total number of possible outcomes for each trial is 6.

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The height of ∆EBA is 24cm in the given question where two triangles are similar.

Similar triangles are triangles that have the same shape but differ in size. Similar objects include all equilateral triangles and squares with any side length. In other words, if two triangles are similar, their corresponding angles and sides are congruent and in equal proportion. The " symbol here denotes the similarity of triangles.

We know that in two similar triangles, the ratio of corresponding sides are equal to ratio of their heights.

We have given that ∆DBC ≅ ∆EBA

So,

⇒ (36-h)/h = DC/AE

⇒ (36-h)/h = 10/20

Using cross multiplication

⇒ 20(36-h) = 10h

⇒ 720 - 20h = 10h

⇒ - 20h -10h = -720

⇒ -30h = -720

⇒ 30h = 720

⇒ h = 720/30

⇒ h = 24

Thus, the height of ∆EBA is 24cm in the given question where two triangles are similar.

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Full question

Use similar triangles to calculate the height, h cm, of triangle ABE.

10 cm

С

В.

36 cm

E

20 cm

Answer:

2.5kg potatoes would approx. cost 4.23$

Step-by-step explanation:

cost of 1kg potato = 1.69$

Therefore, cost of 2kg of potato = 1.69X2

                                                      =3.38

cost of 0.5kg of potato = 1.69\2

                                      = 0.85

Total cost of 2.5kg potato = 2kg + 0.5kg

                                           = 3.38 + 0.85

                                           = 4.23$

Answer:

$4.225

Step-by-step explanation:

2.5kg times per 1.60kg

2.5x1.6=4.225

Answer:

210 ways

Step-by-step explanation:

This is a combinatorics problem of the general nature of choosing r elements from a sample of n elements

It is indicated by the term
[tex]C(n,r) = $\displaystyle \binom{n}{r} = \dfrac{n!}{( r! (n - r)! )$}\\\\[/tex]

where n! represents the factorial of n = n x (n-1) x (n-2) x .... 3 x 2 x 1

With n = 10, r = 3 there are C(10, 3) ways of choosing the officers

[tex]C(n,r) = C(10,4)\\\\= \dfrac{10!}{4! (10 - 4)! }\\\\\\[/tex]

[tex]= \dfrac{10!}{4! \times 6! }[/tex]

[tex]$\displaystyle = 210[/tex]

Data:

Quiz taken: 16

Quiz each week: 1

You can express this as a equation:

Q= Total of quizes taken

W= weeks

As each week the number of quizes Q increase in 1 the change is k=1, and Isabela has already taken 16 quizzes. The number of quizzes can be represented as:

Q0 is the number of quizzes Isabela has already taken.

Then, to have a total of 26 quizzes Isabela have to attend:

Q=26

W=?

You can find the number of weeks by clearing of the equation above the W:

Substract in both sides of the equation 16:

The factorization of the quadratic expression 25x² - 4 gives us (5x + 2)(5x - 2) where; x = -2/5 or 2/5

We are given the quadratic equation as;

25x² - 4

Now, this quadratic equation can be written as;

25x² + 10x - 10x  - 4

We can group this using algebra properties to get;

(25x² + 10x) - (10x + 4)

Collecting like terms gives us;

5x(5x + 2) - 2(5x + 2)

Thus, the factorization is;

(5x + 2)(5x - 2)

The values of x will be;

5x + 2 = 0

x = -2/5

Or 5x - 2 = 0

x = 2/5

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