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
irinina [24]
3 years ago
9

Please help with these questions... I've been trying to figure them out for like twenty minutes and at this point I just don't h

ave the energy anymore... I will pick brainliest! Always do...

Mathematics
1 answer:
vlada-n [284]3 years ago
3 0

Answer:

1. y=2x^2-8X-1

2. y=-6x^2+36x-63

3. y=-3x^2+18x-34

4. y=9x^2+54x+76

5. y=-x^2+8x-22

6. y=6x^2-48x+90

7. y=8x^2+16x+5

8. y=2x^2-8x+1

Have a great day :)

You might be interested in
In a rhombus whose side measures 20 and the smaller angle is 38°. Find the length of the larger diagonal, to the nearest tenth.
Lemur [1.5K]

A rhombus diagonals form right angles. The diagonals also cut in half the angles

use cosine: cos38 = \frac{a}{20\\\\}

a = 20cos38

a=15.8

4 0
3 years ago
How in the world do I do this can somebody help please.
ValentinkaMS [17]

Answer:

Bl^2+4Bl*Fh

Step-by-step explanation:

I'm not quite certain what "draw a net" means here. But for part b, we are doing the formula. The bottom part is a square(assumingly so take this with a grain of salt), thus making the base equal to 3*3 cm or 9 cm^2. The triangular faces are each 3*2.24 cm or 6.72 cm^2. We then multiply this by 4 to get 26.88. Thus, the equation is Bl^2(Base length squared)+Bl*Fh(Face height, I forgot the official name sorry about that)*4 for part b.

5 0
3 years ago
Two possible plans for a new bathroom are shown. Is there a value of x for which the perimeters are equal? Show your work. Expla
Dominik [7]

Answer:

There is no value of x to fit this requirement.

Step-by-step explanation:

The 2 perimeters in terms of x are:

4(x + 3) for the square and

2(x+1) + 2(x +4)  for the rectangle

and these need to be equal so

we equate these 2 and solve for x:

4(x + 3) = 2(x+1) + 2(x +4)

4x + 12 = 2x + 2 + 2x + 8

4x + 12 = 4x + 10

4x -  4x = 10 - 12

0 = -2   which is of course absurd so there is no solution to this equation.

3 0
3 years ago
Read 2 more answers
Trucks are delivering gravel to a construction site each truck hold 7.5 cubic yards of gravel. The weight of 1 cubic yard of gra
Romashka-Z-Leto [24]
The first thing you must do is to calculate the weight of the gravel (w) that the truck holds (7.5 yards³). So, you have:

 If the weight of 1 yard³ is 1.48 tons, then the weight of 7.5 yards³ is:

 w=7.5x1.48 tons
 w=11.1 tons

 The problem says that the gravel will be placed in containers that each hold 3.7 tons of gravel,so, If they need 1 cotainer to place 3.7 tons, how many containers they need to place 11.1 tons?

 1 container-------3.7 tons of gravel
                 x-------11.1 tons of gravel

 x=(11.1x1)/3.7
 x=11.1/3.7
 x=3 containers

 H<span>ow many containers of this size are needed to hold all the gravel from one truck?
</span>
 The answer is: 3 containers. 
7 0
3 years ago
Which does NOT show a reasonable estimate for 673 × 18?
Yakvenalex [24]

Answer:

A. 14,000

Step-by-step explanation:

because 673 rounded would equal 700

and 18 rounded would be 20

so 700x20 would be 14,000

hopefully you understand

and i hope you have a good day :)

6 0
3 years ago
Other questions:
  • Elana owns a consulting business that helps software companies market their services to school districts. She earns an average o
    10·1 answer
  • Very much appreciated if someone can kindly help haha
    14·1 answer
  • Can some one please help me with these five questions
    15·1 answer
  • Subtract.<br><br> (2x^2+4x−8)−(4x^2−x+1)<br><br> Enter your answer, in standard form, in the box.
    8·1 answer
  • Compare the two fractions using &lt;, &gt;, or =. 6/12 ___ 1/2
    11·2 answers
  • What would 1/2 X 6 2/3 been?
    10·2 answers
  • Someone help me on this plzzz!!
    5·1 answer
  • Which answers describe the shape below? Check all that apply.
    9·2 answers
  • group of children share 11 3/7 pizza each child receives 10/14 of a pizza. How many children are in the group​
    11·1 answer
  • A pet store has three fish tanks each holding a different volume of water in a different number of fish to a holds 4 L and five
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!