Mathematics Middle School

4. Find the vertex, focus, and directrix of the parabola. Sketch its graph, showing the focus and the directrix.
x^{2}=-3 y

Answers

Answer 1

Answer:

vertex - (0,0)

focus - (0, 3/4)

directrix - 3/4

parabola- x^2=-3y

graph of equation:

4. Find The Vertex, Focus, And Directrix Of The Parabola. Sketch Its Graph, Showing The Focus And The

Related Questions

What is the surface area of a square pyramid that has a base of 12 cm. and the sides of the pyramid have a slant height of 9 cm. to the nearest whole number?

Answers

Answer:

108

Step-by-step explanation:

just multiply the base and the heigth so 12x9=108

answer :
108
just Multiply the base and the height so 12x9=108

explain and answer!!!!

Answers

Answer 610
8+15+8=31
1/2x31x20=310
20x15=300
300+310=610

It’s simple find the area of the triangle then the rectangle add the, both up to find the answer

Please help me with this I would give you 50 points.

Answers

Answers for #5

- s/10

- 8*b

- h+7

- 3*r-8

Question 6

62 miles/hour x 4 hours = 248 miles traveled

1. s/10

2. 8•b

3. 7 > h

4. 8 < 3 • r


5. 248 miles

Select the correct comparison PLEASE HELP ASAP!

Answers

Answer:

c

Step-by-step explanation:

The answer is question answer C. The typical value is greater in set B. The spread is greater in set A

Look at the screen shot

Answers

Answer:

Quotient, remainder, numerator

Step-by-step explanation:

Quotient, numerals, couf be I have no idea I’m just questioning

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Answers

Volume: length*width*height

This problem gives you the three dimensions you need, so…

Multiply: 1 3/4* 1 3/4* 2 1/4

Which equals:
6 57/64 cubic feet
1 3/4 x 1 3/4 x 2 1/4 = 6.8906

PLS HELP ME
What is the mean absolute deviation of the data 10, 17, 20, 12, and 16? Round to the nearest whole number

Answers

Answer:

3.5

Step-by-step explanation:

where n is the number of observed values, x-bar is the mean of the observed values and xi are the individual values.

Answer:

The answer is 4

[tex]s = \sqrt{\frac{\Sigma^n_i_=_1(x_i-x)^2}{n-1} }[/tex]

Turn the equation into a simpler form

[tex]s = \sqrt{\frac{SS}{n-1} }[/tex]

[tex]s = \sqrt{\frac{64}{5-1} }[/tex]

[tex]s = \sqrt{\frac{64}{4} }[/tex]

[tex]s = \sqrt{16}[/tex]

That said, we know the square root of 16 is 4, so 4 would be your answer.

[tex]s = 4[/tex]

Determine the unit of measurement that best represents each scenario.

1.


2.


3.

Answers

Answer:

pounds, ounces, tons

Step-by-step explanation:

Answer:

Step-by-step explanation:

pounds, ounces, tons

Write an improper fraction using the following criteria:

an improper fraction
the value is between 5 and 10
the denominator is 9

Answers

(5x5 -28 =56

Step-by-step explanation its simple.

What is the slant height, s, of the triangular prism?
Round your answer to the nearest tenth.
Image below

Answers

Step-by-step explanation:

there is a right angled triangle.

25+4 = 29 = slant ht^2

h = 5.38 units

(PLS HELP MY TEACHER NEEDS ME TO PASS THIS!)

which is the solution to the system of equations shown in the graph below?

Answers

Answer:

Its 4, -3

Step-by-step explanation:

Always go in (x,y)

so you will go right first but the number are positive

then it is 4

then the second cross it occuring lower which is negative

then it is -3

so,

:• 4, -3

Answer: -4, -3

Step-by-step explanation:

To find the solution to a systems of equations on a graph, find the area where the 2 lines intersect, (in other context, come together, or share the same points). In this case, they come together at the point -4, -3.

Find the area of the parallelogram.

Answers

15*9 = 135 units squared
135 units squared is the answer

If x = 7 units, y = 3 units, and h = 9 units, find the area of the trapezoid shown above using decomposition.

Answers

Answer:

Area = 45

Step-by-step explanation:

Solve:

Now using the formula if:

x = 7

y = 3

h = 9

Area = (X+Y)(h)

Area = (7+3)(9)

Area = (10)(9)

Area = 90

Kavinsky

Can someone help me “Write a story problem to represent 1/4 divided by 5”

Answers

Answer:

Below

Step-by-step explanation:

Just made it up on the spot :)

Jared invited his friends over for lunch. He bought a pizza and ate 3/4 of it himself before calling his friends. He called Bob, Matombe, Steve, Owen, and Bill. Now, Jared must divide the 1/4 of the pizza into 5 parts for his friends to eat.

Answer:

Step-by-step explanation:

If 1/4 is divided by 5 we can think about it as 1/4 is a quarter of a whole and we need to divide that quarter in 5 equal parts.

Story Problem:

Alexa has 5 more days to finish reading the ELA book assigned by her teacher. She still has to read 1/4 of the book. What fraction of the book she should read on each of the 5 days to ensure she will be done in time?

(1/4 ) / 5 = (1/4) *(1/5) = 1 / 20

If Alexa reads 1/20 of the book each day she will finish the book in 5 days.

19. A girl has four skirts and six blouses. How many different skirt-blouse combiNtions can she wear?

Answers

4 combinations of skirt blouses

Explain how to write an inequality to model the problem.

The winning baseball team scored more than 5 runs.

I will Mark Brainliest!!!

Answers

Answer: se o time marcou mais de cinco corridas

Step-by-step explanation: acho que é o time marcou mais de cinco pontos!!

a

cho que é isso num tendi muito bem mas espero ter ajudado?ajudado!!

^-^

Answer:

Let's use r for the number of runs

r>5

Step-by-step explanation:

R is larger than five

3. Write in normal form (as a number).
a. 7× 107 + 2 × 105 +9 × 100
b. 3 × 108 +4 × 106 + 5 × 105 + 1 × 10²

Answers

Answer:

1859

1373

Step-by-step explanation:

Answer:

A. 1859

B. 1373

Step-by-step explanation:

Add the numbers together and find the matrix.

Formula - A X 10^2

The length of a shoe is 25 centimeters. How long is the shoe in meters?
(1 meter = 100 centimeters)
-2500 meters
-2.5 meters
-0.25 meters
-250 meters

Answers

Answer:

it is .25 meters

Step-by-step explanation:

It is .25 meters because 25 is a quarter of 100.

i need help
This Bar Chart shows how many days it took for 12 corn seedlings to emerge.

What is the range of this set of data?

Answers

the answer is 10-5=5 cuz its the diff between highest and lowest

The Range of the given set is 5.

We have been given Bar Chart that shows how many days it took for 12 corn seedlings to emerge.

We know that the Range of data set is the difference between the smallest and largest values

It is a measure of the spread or variability of the data set.

The highest point is 10

The lowest point is 5

The Range = 10 - 5

Range = 5

Therefore, the correct answer is 5.

Learn more about the range of the function:

brainly.com/question/2264373

#SPJ2

ill give brainly HURRY
The cost of a cleaning service includes labor and supplies. Supplies are 30% of the total cost. The cost of supplies for a certain cleaning service is $54.

What is the total cost of the cleaning service?

Enter your answer in the box.

Answers

Answer:

The total cost of the cleaning service is $180

Step-by-step explanation:

We have, 30% × x = 54

or,

30/100 × x = 54

Multiplying both sides by 100 and dividing both sides by 30,

we have x = 54 × 100/30

x = 180

If you are using a calculator, simply enter 54×100÷30, which will give you the answer.

The total cost of the cleaning service is $180

Pls help me i need a good answe

Answers

12x8=96
96/2
48 is the answer
1/2*base*height
=1/2*12*8

=1/2*96
=48units sq

guys i need help please

Answers

Answer:

15

Step-by-step explanation:

6 times 3 equals 18, then you subtract 3 from that and thats the answer

The given rule is 6x-3 where x = 3

So now substituting we get 6(3)-3

=> 18-3 = 15

15 is your answer

Have a good day

Mark as brainliest..

Pls help me no links beyoch

Answers

1/2*base*height
=1/2*8*10
=1/2*80
=40sq units

Answer:

40

Step-by-step explanation:

Area of a triangle

The area of a triangle can be calculated using the formula

A = bh/2 where b = base length and h = height

Finding the area by plugging in the values of the height and base length

Looking at the triangle we can tell that the base length is 8 and the height is 10. ( so b = 8 and h = 10 )  

So we have A = bh/2

==> plug in b = 8 and h = 10

A = (8)(10)/2

==> multiply 8 and 10

A = 80/2

==> divide 80 by 2

A = 40

Learn more about areas of triangles here! : https://brainly.com/question/15442893

Find surface area will give branliest if answer is right.

Answers

Answer:

66 in^2

Step-by-step explanation:

1. The average height of a group of students is 157 cm. After Tamiko joins the group, the new average height is 152 cm. Tamiko is 137 cm tall. How many students are there in the group in the end?

Answers

Answer:

   152cm

   157cm

+ 137cm

Step-by-step explanation:

PLS HELP. I will give brainliest if you are correct!!!

What is the area of one base of the triangular prism?
24 square units
48 square units
160 square units
200 square units

Answers

We can see here that there are 2 triangular bases on the prism.

To calculate the area of a triangle, we multiply the base and the height and then divide by 2.

A = 8 x 6 /2

A = 48/2

A = 24

Hope it helps!

Prince started with $0 in his savings account and is saving $15 per week. Chastity has $40 in her savings account and is saving $5 per week. Write an equation that can be used to determine the number of weeks, w, that Jeremiah and Tatiana will have the same amount of money in their savings account.

Answers

The equation for this problem would be 15x=40+5x. First you would subtract 5x from both sides. The new equation is 15x-5x=40. You then subtract 5x from 15x which gets you 10x=40. You would then divide 10 from each side and get x=4

what are the next three terms in the sequence?
-6, 5, 16, 27....

A). 38, 49, 60

B). 37, 47, 57

C). 36, 45, 54

D). 36, 46, 57

Answers

Answer:

A). 38, 49, 60

Step-by-step explanation:

The pattern is +11 so the next three numbers would be 38, 49, and 60

the answer is A the sequence is 11

Congruent figures Practice -2 measurement of side DE

Answers

Answer:

9 in

Step-by-step explanation:

Side DE is equivalent to side KG

Let $z$ be a complex number such that $z^5 = 1$ and $z \neq 1.$ Compute
\[z + \frac{1}{z} + z^2 + \frac{1}{z^2}.\]

Answers

Answer:

The answer is 4

Step-by-step explanation: i did it

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