A right triangle has an area of 33 mm2 and a height of 12mm. How long is the base of the triangle

Using the weighed mean formula, it is found that Mara's average for the course was of 68.6.

The weighed mean is given by the sum of all elements in a data-set multiplied by it's weight, divided by the sum of the weights.

In this problem, the weights are as follows:

Hence, her weighed mean is given as follows:

[tex]M = \frac{2(65 + 62 + 60) + (61 + 96 + 80 + 89) + 4(65)}{6 + 4 + 4} = 68.6[/tex]

Mara's average for the course was of 68.6.

More can be learned about the weighed mean formula at https://brainly.com/question/24398353

Answer:

75 square units

Step-by-step explanation:

set up a proportion first.

[tex] \frac{3}{4} = \frac{x}{100} [/tex]

(x is on top because it asks for the smaller area, so it is on the same side of the 3)

after, cross multiply to find x

4x = 300

divide by 4

x= 75

Answer:

40 Percent decrease

Step-by-step explanation:

We can use a simple formula to solve this problem.

Starting price * X/100 = Ending Price

We plug in our values to solve for X

45 * x/100 = 18

You simplify the equation and you should get X as 40, meaning there is a 40 Percent decrease in price.

Answer:

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

[tex](40 - 10)x - 12000 \geqslant 980[/tex]

[tex]30x - 12000 \geqslant 980[/tex]

Answer:

a)

[tex] {x}^{2} - 16 \\ = {x}^{2} - {4}^{2} \\ = (x + 4)(x - 4)[/tex]

b)

[tex] {9y}^{2} - 25 \\ = {(3y)}^{2} - {5}^{2} \\ = (3y + 5)(3y - 5) [/tex]

here is the answer hope that will help you

Answer:

f(x) = (x + 4)(x - 4)

Step-by-step explanation:

f(x) = x² - 16

This is the difference of two squares.

f(x) = (x + 4)(x - 4)

Answer:

D : y = 7x - 20

Step-by-step explanation:

let D be the line that passes through the points (4, 8) and (2, -6)

Then D has an equation of the form D: y = ax + b

Now we need to find a and b in order to be able to write the equation of the line D:

[tex]a = \frac{8-(-6)}{4-2}=\frac{14}{2}=7[/tex]

Since the point (4, 8) lies on the line D then :

8 = 7 × (4) + b

then

8 = 28 + b

then

b = 8 - 28

  = -20

Conclusion:

Since a = 7 and b = -20 then

D : y = 7x - 20

Answer: A 2-column table with 4 rows. The first column is labeled x with entries negative 3, negative 2, negative 1, 0. The second column is labeled f of x with entries 2, 0, negative 10, negative 24.

Step-by-step explanation:

The table shown in the attachment has the function that is decreasing in the interval of interest."Decreasing" means that for increasing x-values, each f(x) value is less than the one before.

Answer:

4 inches x 8 inches x 3 inches = 96 inches³

Alisa should either fill out a new ticket or write the correct amount and append her signature beside it.

A deposit ticket is a little paper where you are required to fill in the details of the deposit that you seek to make into your savings account. All information in the ticket ought to be filled accurately.

The teller may have declined to receive the ticket due to incorrect total amount filled on the ticket. Alisa should either fill out a new ticket or write the correct amount and append her signature beside it.

Learn more about savings account:

brainly.com/question/1446753

Answer:

a. the subtotal is calculated incorrectly

Step-by-step explanation:

I'm good at math ;)

Yes the pre image and image are congruent inspite of reflection, rotation or translation

This happens because they are rotated or translated according to a constant factor called scale factor

Answer:

[tex]y = (x - 7)^{2} + 7[/tex].

Step-by-step explanation:

Let [tex]a[/tex], [tex]h[/tex], and [tex]k[/tex] be constants, and let [tex]a \ne 0[/tex]. The equation [tex]y = a\, (x - h)^{2} + k[/tex] represents a parabola in a plane with vertex at [tex](h,\, k)[/tex].

For example, for [tex]y = -(x + 7)^{2} + 7 = -(x - (-7))^{2} + 7[/tex], [tex]a = (-1)[/tex], [tex]h = (-7)[/tex], and [tex]k = 7[/tex].

A parabola is entirely above the [tex]x[/tex]-axis only if this parabola opens upwards, with the vertex [tex](h,\, k)[/tex] above the [tex]x\![/tex]-axis.

The parabola opens upwards if and only if the leading coefficient is positive: [tex]a > 0[/tex].

For the vertex [tex](h,\, k)[/tex] to be above the [tex]x[/tex]-axis, the [tex]y[/tex]-coordinate of that point, [tex]k[/tex], must be strictly positive. Thus, [tex]k > 0[/tex].

Among the choices:

Answer:

its c

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

I am assuming this is the answer you are looking for and if not I am sorry. The sides of this equation are not currently equal. (-7=12) So the statement of the equation is false.

Answer:

B .565

Step-by-step explanation:

10 + 13 =

23

13/23 = .565

[tex]2\sqrt[3]{x^2}\cdot \sqrt{16x}\\\\=2\sqrt[3]{x^2} \cdot 4\sqrt x\\\\=8x^{\tfrac 23} \cdot x^{\tfrac 12}\\\\=8\cdot x^{\tfrac 23 + \tfrac 12}\\\\=8\cdot x^{\tfrac 76}\\\\=8\sqrt[6]{x^7}\\\\=8\sqrt[6]{x^6 \cdot x}\\\\=8x\sqrt[6]{x}[/tex]

[tex]\text{Hence the answer is A}[/tex]

Answer:

[tex] \sf \: Option \: A \: \sf \ 2 \sqrt[3]{ {x}^{2} } \cdot \: \sqrt{16x} = 8x \sqrt[6]{ {x}}[/tex]

Step-by-step explanation:

[tex] \sf \: if \: x > 0 \\ \sf \: 2 \sqrt[3]{ {x}^{2} } \cdot \: \sqrt{16x} = 2 \sqrt[3]{ {x}^{2} } \cdot \: 4 \sqrt{x} \\ \sf \ 2 \sqrt[3]{ {x}^{2} } \cdot \: \sqrt{16x} = 8 {x}^{ \frac{2}{3} } \cdot \: {x}^{ \frac{1}{2} } \\ \sf \ 2 \sqrt[3]{ {x}^{2} } \cdot \: \sqrt{16x} =8 {x}^{ \frac{2}{3} + \frac{1}{2} } \\ \sf\ 2 \sqrt[3]{ {x}^{2} } \cdot \: \sqrt{16x} = 8 {x}^{ \frac{4 + 3}{3 \times 2} } \\ \sf\ 2 \sqrt[3]{ {x}^{2} } \cdot \: \sqrt{16x} = 8 {x}^{ \frac{7}{6} } \\ \sf 2 \sqrt[3]{ {x}^{2} } \cdot \: \sqrt{16x} = 8 \sqrt[6]{ {x}^{7} } \\ \sf\ 2 \sqrt[3]{ {x}^{2} } \cdot \: \sqrt{16x} = 8 \sqrt[6]{ {x}^{6} + x } \\ \sf \ 2 \sqrt[3]{ {x}^{2} } \cdot \: \sqrt{16x} = 8x \sqrt[6]{ {x}}[/tex]

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Answer: 0.05 cup

Step-by-step explanation:

Divide 2.5 by 10 to find how much is in one of Sarah’s dishes.

This gives you 0.25

Divide 1.6 by 8 to find how much is in one of Amy's dishes.

This gives you 0.2

Now minus 0.2 from 0.25.

This gives you a 0.05 cup

hope this helps

The functions f(x), g(x) and h(x) are related as a result of composite functions

The values of the functions are f(x) = x³ - 5x² + 2x + 8 and g(x) = x² - x - 2

From the question, we have the following equation

h(x) = f(x)/g(x)

This gives

f(x) = g(x) * h(x)

The function h(x) is given as:

h(x) = x - 4

So, we have:

f(x) = g(x) * (x - 4)

The function g(x) cannot be x³ - 3x² - 6x + 8 because the leading coefficients of function f(x) are 3 and 2

Next, we assume that:

g(x) = x² - x - 2

So, we have:

f(x) = (x² - x - 2) * (x - 4)

Expand

f(x) = (x³ - x² - 2x - 4x² + 4x + 8)

Evaluate like terms

f(x) = x³ - 5x² + 2x + 8

The above function exists in the given table.

Hence, the values of the functions are f(x) = x³ - 5x² + 2x + 8 and g(x) = x² - x - 2

Read more about composite functions at:

https://brainly.com/question/10687170

Answer:

A

Step-by-step explanation:

let f(x) = y and rearrange making x the subject

y = [tex]\frac{x}{3}[/tex] - 2 ( add 2 to both sides )

y + 2 = [tex]\frac{x}{3}[/tex] ( multiply both sides by 3 to clear the fraction )

3(y + 2) = x

change y back into terms of x with x = [tex]f^{-1}[/tex] (x) , then inverse function is

[tex]f^{-1}[/tex] (x) = 3(x + 2)

Answer:

Francesca can buy 4 packages of balloons for $34.

Step-by-step explanation:

35.42 x 100 = 3542 ÷2 = 1771

 8.36 x 100 =   836 ÷2 =  418

1771 ÷ 418 = 4.236842105263158 (We will round it to 4.23)

If we round it to 5, it will exceed Francesca's budget, so we will make 4.23 4.

4 x 8.36 = $33.44

We cannot cut the 44 cents so we will round it to $34.

Hope this helped!

Answer:

a

Step-by-step explanation: bc i just did it

Answer:

The surface area of the rectangle is 2670

Answer:

x-intercepts are points at which the curve intercepts the x-axis, so when y = 0.

If the vertex of a quadratic function is on the x-axis, there will be only one x-intercept since the parabola will intersect the x-axis at one point only.

If the vertex of the function touches the x-axis, the zero at this point will have a multiplicity of two.  For example, if the vertex is at (4, 0), and therefore the zero is at x = 4, then the function will be [tex]y=a(x - 4)^2[/tex] (where a is some constant).

Vertex form of parabola

Where

So

if vertex is on x axis k is 0 and the parabola has only 1 x intercept

The form will be

Answer:

The slope should be -2

You should go down 2 and go over 1.

Slope Intercept Form: y= -2x+3

Step-by-step explanation:

First, you need to identify the slope: (meaning whether it is a postive or negative.)

In this case, You have a negative slope.

This means instead of rising you're decreasing down.

When you "run" or move horizontally you MUST move right even if it's a negative slope.

Now, you need to identify your Y-Intercept.

Your Y-Intercept should be (0,3)

Next, you have to find your slope:

In order to find your slope, you need to find where the line is crossing the coordinate.

Start at (-1,5) and go down and over to (0,3)

Your answer should be that you went down 2 and over 1.

The slope can't be 2 because if it were to be 2, then that would be a positive slope which isn't our occasion.

The slope is -2.

In Slope Intercept Form: y= -2x+3

Answer:

18

Step-by-step explanation:

2/3 = 66%

66% of 18 =

12-6=

6

Answer:

Egg and Jelly Bans

Step-by-step explanation:

*Using a calculator or otherwise*

1.45 x 3 = $4.35                                           1.05(eggs)+1.37(beans)= $2.42

        +

2.29 x 2 =$4.58

              = $8.93

11.35-8.93= $2.42

Jaleel did the sides by eachother.

Since it's 3d, it also wants them/us to count the sides that are not shown. He did one side by the length and then another by the height, then doubled it. Finally he added it all together

Slope= -1/2

Hope it helps.

Do comment if you have any query.

Slope:-

Answer:

63

Step-by-step explanation:

John's percentage:

36 and 48 have a common factor of 12 so divide both of them by 12.

36/12= 3 and 48/12=4 therefore

so 36/48= 3/4 which is 75% but we don't need to focus on the percent.

Don's no. of shirts:

we know Don has 84 shirts so we say

3/4 of 84= no. of shirts that Don put in his closet

84/4=21 21x3=63

Don put 63 shirts in his closet.

Hope that helped! Anymore questions just ask! :)