All categories

3 years ago

Can someone help me?

Mathematics

1 answer:

Gnesinka [82]3 years ago

5 0

Answer:

y =4(x-3)^2+2 => y=4x^2-24x+38

y=2(x-3)^2+4 => y=2x^2-12x+22

y=2(x+3)^2+4 => y= 2x^2+12x+22

Y= 4(x+3)^2+2 => y= 4x^2+24x+38

Step-by-step explanation:

You might be interested in

I need help bro pleaseeee

sashaice [31]

As a fraction: 20/7
As a mixed number: 2 6/7

5 0

3 years ago

Read 2 more answers

Each week, mr. jones goes to the grocery store. mr.jones estimates that he will spend $120 when he goes to the grocery store thi

Aliun [14]

Estimated amount that Mr. Jones thought would be spending each week for grocery = $120
Amount actually spent by Mr.Jones in the grocery store = $94
Error in calculation of the amount of spending = (120 - 94) dollars
   = $26
Percentage error in calculation = (26/120) * 100
   = (13/6) * 10
   = 130/6
   = 21.666 percent
   = 21.67 percent
So there is 21.67% error in the calculation of Mr. Jones. I hope you got the answer you were looking for.

8 0

3 years ago

For a craft, each student will need five rubber bands. There are eight students. What rubber bands come in bags of 9. How many b

gizmo_the_mogwai [7]

Answer:

In total 5 packets of rubber bands are needed.

Out of which 5 rubber bands are left.

Step-by-step explanation:

The number of rubber bands needed by 1 student = 5

The total number of students = 8

So, the total rubber bands needed by all students

= Total students x Number of rubber bands needed by 1 student

= 8 x 5 = 40 bands

Now 1 packet of rubber bands = 9 bands

⇒ 2 packets = 2 x ( 9 bands) = 18 bands

⇒ 3 packets = 3 x ( 9 bands) = 27 bands

Similarly, 4 packets = 36 bands , 5 packets = 45 bands

Now, if we buy 4 packet of bands, there are 36 rubber bands which are LESS THAN THE TOTAL STUDENTS.

So, we buy 5 packets.

We have in total 45 bands, but the total students = 40

So, the number of left rubber bands = Total bands - Total students

= 45 - 40 = 5

Hence, in total 5 packets of rubber bands are needed, and out of which 5 rubber bands are left.

5 0

3 years ago

1. Which two points lie on a line with slope 2/3?

kondaur [170]

Number one is D
number 2 is A

7 0

4 years ago

Read 2 more answers

The cost of carpeting the floor of a room, whose breadth is twice it’s height and length is twice it’s breadth, at the rate of R

Leno4ka [110]

Answer:

The cost of plastering the four wall at the rate of Rs 20 per meter square is Rs 3,543.4

Step-by-step explanation:

Given as :

The cost of carpeting a room = Rs 64,000

The rate of carpeting = Rs 540 m²

The breadth is twice its height

The length is twice its breadth

Let The length = L m

The breadth = B m

The height = L m

So, according to question

L = 2 B and B = 2 H

Now, Area of rectangular carpet = Length × Breadth

Or, A = L × B

Or, A = 2 B × B

∵ The cost of carpeting at the rate of Rs 540 per m² = Rs 64,000

So, area = $\frac{64000}{540}$

Or, 2× B² = 118.518

Or, B² = $\frac{118.518}{2}$

Or, B² = 59.259

I,.e B = $\sqrt{59.259}$ = 7.69 m

The length = 2 B

I.e L = 2 × 7.69 = 15.38 m

and H = $\frac{B}{2}$

I.e H = $\frac{7.69}{2}$ = 3.84 m

So, Length = 15.38 m , Breadth = 7.69 m , height = 3.84 m

∵ The area of four wall = 2× ( Length + Breadth ) × height

or, The area of four wall = 2× ( 15.38 + 7.69 ) × 3.84

Or, The area of four wall = 177.17 m²

Now The rate of plastering the four wall = Rs 20 per square meter

So, The cost of plastering the four wall = area of four wall × rs 20

∴ The cost of plastering the four wall = 177.17 × Rs 20

I.e The cost of plastering the four wall = Rs 3,543.4

Hence The cost of plastering the four wall at the rate of Rs 20 per meter square is Rs 3,543.4 answer

7 0

3 years ago