1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
choli [55]
2 years ago
13

X 5.2.19

Mathematics
1 answer:
Semmy [17]2 years ago
7 0

Answer:

Step-by-step explanation:

y = ax² + bx + c

Plug the points into the equation to get a system of 3 equations with 3 unknowns a, b, and c.

-27 = 4a - 2b + c

-42 = 9a + 3b + c

-12 = a + b + c

(a,b,c) = (-4,1,-9)

y = -4x² + x - 9

You might be interested in
Thanks to whoever can help me!
alexandr1967 [171]
2 1/2 .need 20 characters to post
6 0
3 years ago
Read 2 more answers
Find the surface area of this prism. geometry hw
Alexus [3.1K]

Answer:

395.2 cm²

Step-by-step explanation:

2x12.7x6.72=170.688

2x6.72x5.78=77.6832

2x5.78x12.7=146.812

170.688+77.6832+146.812=395.1832

4 0
2 years ago
Read 2 more answers
Nadia plans to paint her jewelry box. The box is shaped like a rectangular prism with the dimensions
Pachacha [2.7K]

Answer:

132\ in^{2} is closest to the total surface area of the box

Step-by-step explanation:

we know that

The surface area of the box is equal to

SA=2B+PH

where

B is the area of the base

P is the perimeter of the base

H is the height of the box

we have

L=7\frac{3}{4}\ in=\frac{7*4+3}{4}=\frac{31}{4}\ in

W=3\frac{1}{4}\ in=\frac{3*4+1}{4}=\frac{13}{4}\ in

H=3\frac{7}{8}\ in=\frac{3*8+7}{8}=\frac{31}{8}\ in

<em>Find the area of the base B</em>

B=LW

B=(\frac{31}{4})(\frac{13}{4})=\frac{403}{16}\ in^{2}

<em>Find the perimeter of the base P</em>

P=2(L+W)

P=2(\frac{31}{4}+\frac{13}{4}))

P=2(\frac{44}{4})=22\ in

<em>Find the surface area</em>

SA=2(\frac{403}{16})+22(\frac{31}{8})

SA=(\frac{403}{8})+(\frac{682}{8})

SA=\frac{1,085}{8}=135.625\ in^{2}

6 0
3 years ago
What is 1 + 1 - 10 -50 -40 x 9877 -7000 + 500 - 600 X 564847584 -38339
ikadub [295]

Answer:

-338908990377

Step-by-step explanation:

that is the answer

3 0
3 years ago
Write the decimal in simplest fractional form: 3.05
Sidana [21]
61/20 is the answer.
5 0
2 years ago
Read 2 more answers
Other questions:
  • Every year the state department of education gathers statistical information from all schools to award a letter grade showing th
    6·1 answer
  • Please help!
    6·2 answers
  • What is the square footage of a triangle piece of plastic with a base of 18cm and a height of 25 cm.
    6·1 answer
  • What is 59.69 written in expanded form
    10·2 answers
  • 1/2x - 3/4y=-2  Solve for Y
    12·1 answer
  • Simplify eight to the negative fifth divided by eight to the negative third.
    11·2 answers
  • An albatross is a large bird that can fly 400 kilometers in 8 hours at a constant speed. Using d for distance in kilometers and
    9·2 answers
  • Can someone please take a moment to draw me something like this for my project pleaseee only 1 is good (the on In the photo) and
    13·1 answer
  • When ringing up a customer, a cashier needs 7 seconds to process the payment as well as 5 seconds to scan each item being purcha
    12·2 answers
  • Amy,Tyrone, Nina, Jake, and Mandy are standing on line at the grocery store. Each one is wearing a different color shirt: red, g
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!