can someone help me with my algebra class?

Answer:

11:13

Step-by-step explanation:

The ratio 33:39 divided by 3 would give you 11:13

Answer:

r=s+5

Step-by-step explanation:

So, letsgo over what we know:

The regular price is r

The sale price is s

Now lets compare the difference between r and s:

10r = 5s

20r = 15s

30r = 25s

What is the difference between the r and s value in each situration?

Well, from what I can see, r is always 5 more than s.

This can be writen as:

r = s+5\

So this is our equation, for if you plug in any number for s, you will get an accurate r value.

For instance, if you say s is 25:

r=25+5

=

r=30

This looks just like the 30r=25s in the table above.

So:

r=s+5

Hope this helps! :)

Answer:

What type of line the picture represent

Answer: A

Step-by-step explanation: Hope this help :D

Answer: It’s B.

Step-by-step explanation: Got it on edge

Answer:

Answer: It’s B.

Got it on edge

Step-by-step explanation:

Got it right on edge

9514 1404 393

Answer:

Step-by-step explanation:

You are being asked for the decimal equivalents of 0, 4/5, and 2 2/5.

You have correctly noted that the decimal equivalent of 0 is 0, or 0.0.

__

The decimal equivalents you want are apparently in hundredths. To find the fractional part, solve the proportion ...

  (your fraction) = x/100   ⇒   x = 100×(your fraction)

So, for the decimal equivalent of 4/5, you have ...

  x = 100(4/5) = 80

and the decimal is

 80/100 = 0.80 . . . decimal representing Marsha's shading

__

Similarly, the decimal equivalent of 2/5 is ...

  x = 100(2/5) = 40

  2 2/5 = 2 40/100 = 2.40 . . . decimal equivalent of Grace's shading

Answer:

We are told that circle C has center (-4, 6) and a radius of 2.

We are told that circle D has center (6, -2) and a radius of 4.

If we move circle C's center ten units to the right and eight units down, the new center would be at (-4 + 10), (6 - 8) = (6, -2). So step 1 in the informal proof checks out - the centers are the same (which is the definition of concentric) and the shifts are right.

Let's look at our circles. Circle C has a radius of 2 and is inside circle D, whose radius is 4. Between Circle C and Circle D, the radii have a 1:2 ratio, as seen below:

If we dilate circle C by a factor of 2, it means we are expanding it and doubling it. Our circle has that 1:2 ratio, and doubling both sides gives us 2:4. The second step checks out.

Translated objects (or those that you shift) can be congruent, and dilated objects are used with similarity (where you stretch and squeeze). The third step checks out.

Thus, the argument is correct and the last choice is best.

Cute copy and paste:

☏ ♡ ☆⋆◦★◦⋆°*•°

. * . . ° . ● ° .

¸ . ★ ° :. . • ° . * :. ☆

° :. ° .☆ . ● .° °★

★ ★°★ . * . °☆ . ● . ★ ° . • ○ ● . ☆ ★ ° ☆ ¸. ¸ ★ . • ° . *

¸ . ★ ° :. :. . ¸ . ● ¸ ° ¸. * ● ¸ °☆

☆ °☆ . * ● ¸ . ★¸ .

. * . . ° . ● ° .

° :. ° . ☆ . . • . ● .° °★

Answer:

2.5 it is the absolute value

Step-by-step explanation:

brainliest plz

Answer:

All real numbers

Step-by-step explanation:

When looking at the graph the domain is talking about the x-axis.

The x-axis goes from negative infinity to positive infinity FOR ALL X'S, therefore, all real numbers for x.

Answer:

y=3/4x+2

Step-by-step explanation:

I found this by using desmos graphing calculator

Answer:

explain please

Step-by-step explanation:

Answer:

nose nada

Step-by-step explanation:

:c

Answer:

[tex]area \: = side \times side \\ area = 20 \times 20 \\ area = 400 \: {cm}^{2} [/tex]

Answer:

400cm^2

Sides are 20cm long Area for square is a squared since all the lides are of equal length you can just choose one side.

20squared id 400

20 x 20 = 400cm squared

9514 1404 393

Answer:

  +14, -3

Step-by-step explanation:

If x represents one of the numbers, then the equation can be written as ...

  x(11 -x) = -42

  x^2 -11x -42 = 0 . . . . quadratic equation whose solutions are the numbers

__

If we are to solve this by factoring, we look for factors of -42 that have a sum of 11 (the original problem). The factorization in integers can be any of ...

  -42 = 42(-1) = 21(-2) = 14(-3) = 7(-6)

The sums of these factor pairs are 41, 19, 11, 1. Clearly the numbers we're interested in are 14 and -3.

__

There are ways to solve quadratics that don't involve searching for integer factors by trial and error. A graphical solution is attached. The quadratic formula can also be used.

The solution to ax^2+bx+c = 0 is ...

  x = (-b±√(b^2-4ac))/(2a)

Then the solution to our quadratic is ...

  x = (-(-11)±√((-11)^2-4(1)(-42)))/(2(1)) = (11±√289)/2 = (11±17)/2

  x ∈ {-3, 14}

_____

Additional comment

When the solutions are integers, sometimes the easiest way to find them is to look for the factors of the product that have the correct sum. If the numbers are such that finding factor pairs is difficult or tedious, the more direct approach of graphing or using the quadratic formula may be preferred.

180...................

Answer:

251. cm

Step-by-step explanation:

2 × pi = 6.28

6.28 × 40 = 251.2

Answer:

Hello! if Chris garden is a square shape then the answer is 40 7/10 in fraction form or 40.7 in decimal form

Answer:

shhdhd

Step-by-step explanation:

Oh wow great marks

Answer: see below...

Step-by-step explanation:

Square units are when we are finding the surface area.

Since it is side x side, so ^2.

Cubic units are when we are finding the volume.

Since it is side x side x side, so ^3.

Answer:

The first one- 24, The second one-B

Step-by-step explanation:

The first one-Top corner=110, 110+46=156, 180-156=24

The other one-I have no clue how to explain it

Answer:

slope: 4

Y-intercept: -7

Step-by-step explanation:

you would have to solve for y so you subtract the 7 on both sides. then it is in slope-intercept form which is y=mx+b where m is slope and b is the y-intercept. the slope would be 4 and the y-intercept would be -7

Answer: 33

Step-by-step explanation: When a tangent and radius intersect (as in the diagram) they will always be perpendicular. And using the Triangle Sum Theorem that all angles add up to 180 when get that m<BCA must be 33 degrees.

Answer:

true

true

false

Answer:

x=13

Step-by-step explanation:

18-5=13. You have to subtract 5 from 5 itself and then 18.

Answer:

12.327X + 452.084

45206.327

Step-by-step explanation:

The linear regression model obtained by fitting the data using technology is :

ŷ = 12.327X + 452.084

Where, 12.327 = slope ; 452.084 = Intercept ; X = appraised value ; y = Area

The estimated error variance which is the degree of variation between the actual and predicted value.

Error variance = ΣSSE /n-2

n = sample size = 15

ΣSSE = 587682.2638

Error variance = 587682.2638/13

Error variance = 45206.327

Answer:

answer is E

Step-by-step explanation:

4 x 12 i= 48

square root of 4=2

12= 4x3

square root of 4 again = 2

2x2 =4

so left with 4 square root 3

The equivalent expressions are (a) [tex]4\sqrt 3 = \sqrt{24} \cdot \sqrt{2}[/tex],  (d) [tex]4\sqrt 3 = \sqrt{12} \cdot \sqrt{4}[/tex] and (e) [tex]4\sqrt 3 = \sqrt{48}[/tex]

Equivalent expressions are expressions that have equal values

The expression is given as:

[tex]4\sqrt 3[/tex]

Express 4 as the square root of 16

[tex]4\sqrt 3 = \sqrt{16} \times \sqrt 3[/tex]

Combine the roots

[tex]4\sqrt 3 = \sqrt{16\times 3}[/tex]

[tex]4\sqrt 3 = \sqrt{48}[/tex]

Express 48 as the product of 12 and 4

[tex]4\sqrt 3 = \sqrt{12 \cdot 4}[/tex]

Split, into factors

[tex]4\sqrt 3 = \sqrt{12} \cdot \sqrt{4}[/tex]

Express 48 as the product of 24 and 2 in [tex]4\sqrt 3 = \sqrt{48}[/tex]

[tex]4\sqrt 3 = \sqrt{24 \cdot 2}[/tex]

Split

[tex]4\sqrt 3 = \sqrt{24} \cdot \sqrt{2}[/tex]

Hence, the equivalent expressions are (a), (d) and (e)

Read more about equivalent expressions at:

https://brainly.com/question/2972832

Answer:what’s the answer

Step-by-step explanation:

Answer:

2.4

Step-by-step explanation:

subtract 10 and 6 and times that 0.6