help pls
y = -x + 4
y = x - 2

Answer:

-2x - 3

Step-by-step explanation:

f(x) = -1/2(x + 3)  is the same as  y = -1/2(x + 3)

change all y terms to x terms and all x terms to y terms

So  change  y = -1/2(x + 3) to x = -1/2(y + 3)

Now use the new equation and slove for y

x = -1/2(y + 3)

-2x = -2· -1/2 (y + 3)

-2x = y + 3

-2x - 3 = y

Rewrite your answer y = -2x - 3

Write the equation in the  inverse

Answer:

k = 2.31

Step-by-step explanation:

You will use the Law of Cosine to determine the unknown angles, then you will use the Sine Rule to determine the unknown side.

Answer:

it = -1

Step-by-step explanation:

-1

Answer:no answer figure it out on your own

Step-by-step explanation:No Answer

Answer:

784

Step-by-step explanation:

[tex]28*28 = 784[/tex]

y=1/3x

A linear function is a relationship that has a degree of 1 and a constant slope. Linear functions are written in the form of y=mx+b, where m is the slope and b is the y-intercept.

Y-intercept

The y-intercept of a function is the y-value when x=0. In this case, we are given all of the coordinates. One of the coordinates is (0,0), which means that when x=0, y=0. So, the y-intercept is 0.

Slope

The slope is the change in y over the change in x. Using the coordinates we can find the slope through the formula [tex]\frac{y_{2} -y_{1} }{x_{2}- x_{1} }[/tex]. It will be easiest to use the coordinates (0,0) and (3,1). Plug these points into the formula to find the slope.

This means that the slope is 1/3.

Answer

Using the information found in the previous sections we can create the final answer, y=1/3x+0, or just y=1/3x.

Answer:

I got x= 3

[tex]m < DBE = 64\\m < CBE =26[/tex]

Step-by-step explanation:

since x= 3,

I put 3 in the equations,

first equation,

17x + 13

17*3 + 13

=64

second equation,

32-2x

32 - 2*3

=26

Answer:

4 and 5

Step-by-step explanation:

√20 is between 4 and 5 because 20 is between [tex]\sf 2^4[/tex] and [tex]\sf 2^5[/tex]:

[tex]\sf 2^4=16[/tex]  and  [tex]\sf 2^5=32[/tex]

Answer:

It falls in between 4 and 5

Step-by-step explanation:

Hello!

We can find the perfect squares that are before and after 20.

Perfect squares are numbers that are made by multiplying a number by itself. Numbers that are multiplied by itself 3 times are called perfect triples.

To find the square root of a number is to find out what number multiplied by itself gives us the number.

The perfect square before 20 is 16, as it is 4², or 4 x 4

The perfect square after 20 is 25, as it is 5², or 5 x 5

Therefore, the square root of 20 will fall between 4 and 5.

Answer:

B

Step-by-step explanation:

40,000 x 3^1 = 120,000

120,000 x 3 = 360,000

40,000 x 3^2 = 360,000

Therefore, it is the second option, or B.

The function that converts an input of letters and numbers into an encrypted output of a fixed length is the hash function

From the question, we have the following highlights:

The mathematical function with the above features is a hash function

Hence, the function is the hash function

Read more about hash at:

https://brainly.com/question/4478090

Answer:

y = -3x - 1

Step-by-step explanation:

To find the slope, use the slope formula: [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

Plugging in the given values, we have: [tex]\frac{-4-2}{1-(-1)}[/tex]

[tex]\frac{-4-2}{1-(-1)}[/tex]

= [tex]\frac{-6}{2}[/tex]

= -3

Now that we know that the slope is -3, we need to find the y-intercept. Anazlyzing the graph, we can see that the line passes through the point (0, -1) on the y-axis, therefore, that is our y-intercept.

Combining the information, the result is: y = -3x - 1

hope this helps!

Answer:

22

Step-by-step explanation:

Reflection on x axis

P(x, y) =P'(x,-y)

Therefore, D(2,3 ) =D'(2,-3)

Answer:

C=2pi r

2pi= 6.2831

r=13

2pir=81.64

The minimum score needed to be accepted in the university when it takes only top 15% performers where performace had mean 70 score and standard deviation of 8 is found being 78.32 approx.

If we've got a normal distribution, then we can convert it to standard normal distribution and its values will give us the z score.

If we have

[tex]X \sim N(\mu, \sigma)[/tex]

(X is following normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] )

then it can be converted to standard normal distribution as

[tex]Z = \dfrac{X - \mu}{\sigma}, \\\\Z \sim N(0,1)[/tex]

(Know the fact that in continuous distribution, probability of a single point is 0, so we can write

[tex]P(Z \leq z) = P(Z < z) )[/tex]

Also, know that if we look for Z = z in z tables, the p value we get is

[tex]P(Z \leq z) = \rm p \: value[/tex]

For this case, suppose that:

X = the score a student gets in the considered university's entrance exam.

Then, we have:

[tex]X \sim N(\mu = 70, \sigma = 8)[/tex]

Let X = x be the score such that scores bigger than x is 15% of all the scores applicants get.

That means, P(X > x) = 15% of the total area the distribution of X have under its normal distribution. Or, we can say that there is 15% chance of getting scores above X = x

Now, we can rewrite this statement as:

[tex]1 - P(X \leq x) = 0.15[/tex]

Converting X to Z (standard normal variate), we get:

[tex]1 - P(X \leq x ) = 0.15\\\\1 - P\left(Z \leq z = \dfrac{x - 70}{8} \right) =0.15\\\\P(Z \leq z = (x-70)/8) = 0.85[/tex]

The value Z = z for which the p-value is approx 0.85 is found from the z-tables as:

Thus, we get:

[tex]z = \dfrac{x-70}{8}\\x = 8z + 70\\x \approx 8 \times 1.04 + 70 = 78.32[/tex]

Thus, the minimum score needed to be accepted in the university when it takes only top 15% performers where performace had mean 70 score and standard deviation of 8 is found being 78.32 approx.

Learn more about z-score here:

https://brainly.com/question/21262765

#SPJ1

Answer:

254.4

Step-by-step explanation:

if its 0.75 inch thick, then to get the radius you just times to thickness by 2 which gets 1.5.

6-1.5= 4.5

to get the radius you divide 4.5 by 2 which gets 2.25

and then put this in the formula you get=

V=πr2h=π·2.252·16≈254.469

so the answer is 254

edit:i might be wrong feel free to correct me

Answer: 254

Step-by-step explanation:

Answer:

y = -x - 1

Step-by-step explanation:

soo since we already know the slope we can subsitute it to the slope form equation

y = mx + b

y = -x + b

now to find the y intercept we have to subsitute the given point

-3 = -(2) + b

-3 = -2 + b

b = -1

Answer:

y = -x - 1

Step-by-step explanation:

Using the process of elimination, we can immediately eliminate b) (y = 2x - 3).

Why? It has a slope of 2, and our answer wants a line with a slope of -1.

y = mx + b

To find the line that goes through (2, -3), we substitute our 3 answer choices (A, C, and D) with 2 (for x-values) and -3 (for y-values).

(2, -3)

y = -x - 1

-3 = -2 - 1

-3 = -3

This statement is true

(2, -3)

y = -x - 3

-3 = -2 - 3

-3 = -5

This statement is false

(2, -3)

y = -x + 2

-3 = -2 + 2

-3 = 0

This statement is false

Therefore, the correct answer is a) y = -x - 1

*View the graph to verity the answer*

Hope this helps!

Answer:

150cm

Step-by-step explanation:

Multiply all sides together.

5 x 5 x 6 = 150

150cm is the volume of the rectangular prism.

Answer:

9/308

Step-by-step explanation:

The probability is the area of the square divided by the area of the rectangle.

p = (3 in.)² / (22 in. × 14 in.)

p = 9/308

Answer:

x^33-12*x^2-42)-(x^2+x-3)

Step-by-step explanation:

Answer: Its c

Step-by-step explanation: hope it helps :)

Answer:

ARROW A

Step-by-step explanation:

Answer:

Option 1

Step-by-step explanation:

Answer:

$12.50

Step-by-step explanation:

I multiplied $3.75 by 22 to figure out how much you would make in that month.

3.75 x 22 = $82.50

I then subtracted $70 from $82.50 to figure out how much you would have left after buying the pass.

82.50 - 70 = $12.50

Hope this helps!

Answer:

13 meters below sea level.

Step-by-step explanation:

she started at -15m.

Then she went up 7m, making it -8m.

Then down 5m, making it -13m.

the equation would look like this: -15+7-5. All the best, -Crispin

Answer: 4

Step-by-step explanation:

4*9=36+the 4 red =40

Answer:

The answer seems to be going up by $14 every week

Step-by-step explanation:

Week 5 is $100, Week 6 is $114, Week 7 is $128, Week 8 is $142, Week 9 is $156, Week 10 is $170

Because the transformation is a dilation, we conclude that the buildings are not congruent.

You need to remember that if the transformation applied to A is a dilation or a contraction, then the figures will not be congruent.

Where for a point (x, y), a dilation of scale factor k is written as:

(kx, ky).

The vertices of building A are:

(x₁, y₁), (x₂, y₂), (x₃, y₃), and (x₄, y₄).

And the vertices of building B are a dilation of the above ones, such that the dilation has a scale factor k = 2.

(2x₁, 2y₁), (2x₂, 2y₂), (2x₃, 2y₃), and (2x₄, 2y₄).

So, because there is a dilation, building B is not congruent to building A.

If you want to learn more about transformations, you can read:

https://brainly.com/question/3457976

Answer:

It's telling you what to do...Um I can do this tho...

You do the first step...And you move on..It says..Across That tells you to go across. And you keep moving on. Do one step at a time.

I dk how to really help you.

Step-by-step explanation:

~XxRexXx~

Step-by-step explanation:

a) 10 feet ,64=2(2+5w)

64=4+10w

64-4=10w

60=10w

60*10=10w*10

w=6

Answer:

3/4

Step-by-step explanation:

Here,cup of chopped onions=3/6

cup of chopped celery=1/4

Then,

total amount celery and onion needed for the soup =3/6 + 1/4

=3*2 + 1*3/12

=6+3/12

=9/12

=3/4