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
Trava [24]
2 years ago
10

I’m stuck can some one help me

Mathematics
1 answer:
abruzzese [7]2 years ago
7 0

Answer:

3) Midpoint is (-4,0.5)

Option A is correct.

4) Midpoint is (2.5,0)

Option B is correct.

5) The factors are (x+4)(x-7)

Option C is correct.

6) The factors are (x+4)(x+2)

Option A is correct.

Step-by-step explanation:

Question 3

Find midpoint of the following:

(2,-7), (-10,8)

The formula used to find midpoint is: Midpoint=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )

We have x_1=2, y_1=-7, x_2=-10,y_2=8

Putting values and finding midpoint

Midpoint=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )\\Midpoint=(\frac{2-10}{2},\frac{-7+8}{2} )\\Midpoint=(\frac{-8}{2},\frac{1}{2} )\\Midpoint=(-4,0.5 )

So, Midpoint is (-4,0.5)

Option A is correct.

Question 4

Find midpoint of the following:

(2,-10), (3,10)

The formula used to find midpoint is: Midpoint=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )

We have x_1=2, y_1=-10, x_2=3,y_2=10

Putting values and finding midpoint

Midpoint=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )\\Midpoint=(\frac{2+3}{2},\frac{-10+10}{2} )\\Midpoint=(\frac{5}{2},\frac{0}{2} )\\Midpoint=(2.5,0 )

So, Midpoint is (2.5,0)

Option B is correct.

Question 5

Factor each completely

x^2-3x-28

We will break the middle term and find factors

x^2-3x-28\\=x^2-7x+4x-28\\Taking\:common\\=x(x-7)+4(x-7)\\=(x+4)(x-7)

So, the factors are (x+4)(x-7)

Option C is correct.

Question 6

Factor each completely

x^2+6x+8

We will break the middle term and find factors

x^2+6x+8\\=x^2+4x+2x+8\\=x(x+4)+2(x+4)\\=(x+4)(x+2)

So, the factors are (x+4)(x+2)

Option A is correct.

You might be interested in
V(t)=875-50t
Mandarinka [93]
Use socratic instead of this
6 0
3 years ago
Sulfur powder (S) and oxygen gas (02) undergo a
aleksandr82 [10.1K]

Answer:

It’s a

Step-by-step explanation:

8 0
3 years ago
(HELP NEEDED ASAP!!!)The sequence below represents Marisa’s fine at the library for each day that she has an overdue book: $0.50
Mice21 [21]

Answer:

F(n)= 0.50+0.15

Step-by-step explanation:

You would use the 0.50 as the input. And sin más your adding .15 as a fine, you would use 0.15.

7 0
3 years ago
Read 2 more answers
To maintain essential electricity, a gasoline generator at a Puerto Rico hospital uses 3 gallons of gasoline per hour. a) How ma
stira [4]

The mass of the CO2 produced IS 630 Kg

<h3>What is gasoline?</h3>

Gasoline is a kind of fuel that is composed mostly of isooctane. In most engines, gasoline is widely used hence the demand for the product is high. We know that the combustion of an alkane (of which gasoline is one) would produce carbon dioxide and water according to a balanced reaction equation.

The balanced reaction equation for the combustion of gasoline is shown in the image attached to this answer.

Since  a Puerto Rico hospital uses 3 gallons of gasoline per hour, and there are 24 hours in a day, it the follows that 72 gallons of gasoline are used per day. This 72 gallons is the equivalent of 272.88 L

Now;

Given that the density of gasoline = 748.9 g/L

Mass of gasoline = 748.9 g/L * 272.88 L = 204 Kg

Number of moles of gasoline =  204 * 10^3/114 g/mol = 1789.5 moles

If 2 moles of gasoline produces 16 moles of CO2

1789.5 moles produces  1789.5 moles * 16 moles/2 moles = 14316 moles

Mass of CO2 =  14316 moles * 44 g/mol = 630 Kg

Learn more about gasoline:brainly.com/question/13402652?

#SPJ1

4 0
2 years ago
Use the distributive property to write an equivalent expression for 12+18.<br> PLS HELP
shepuryov [24]

Answer:

6(2+3)

Step-by-step explanation:

6x2=12

6x3=18

12+18

6 0
2 years ago
Other questions:
  • Ron buys pens from a store. 3 packs of blue pens cost $22.50 and 4 packs of black pens cost $34.00. How much would it cost Ron t
    8·1 answer
  • What is the volume of a cube with an edge length of 0.8 m?
    5·2 answers
  • 34 divided by 17 equal Unknown over 7
    11·1 answer
  • Need help pls<br> 18 POINTS IF YOU HELP.<br> On #6 pls.
    7·2 answers
  • A compact disc player costs £50 plus 17 1/2% Vat. Calculate the total cost of the compact disc player
    10·1 answer
  • Find each of the following indefinite integrals.<br><br><br> ∫sec^2 θ √ tanθ dθ
    7·2 answers
  • 1. If your local library allows you to check out up to 10 books every month, what is the
    7·1 answer
  • Given:circle O, with tangent segments AC and AB . What is the measure of angle A
    7·1 answer
  • Can someone help me ): i think you should
    10·2 answers
  • The next model of a sports car will cost 12.2% less than the current model. The current model costs $34,000 . How much will the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!