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2 years ago

Please help me please

Mathematics

2 answers:

AleksAgata [21]2 years ago

5 0

Answer:

I think this AB would equal 12! Let me know if its right or wrong :3

Step-by-step explanation:

Norma-Jean [14]2 years ago

3 0

Im blind SKDJFJNEDKODNANSRNFIS

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I’m stuck can some one help me

abruzzese [7]

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.

7 0

2 years ago

What are two powers of 10 that are greater than 100,000

CaHeK987 [17]

10⁶= 1 million= 1,000,000

10⁷=10 million= 10,000,000

5 0

2 years ago

Sorry, you guys I put the subject in Math its english! But have a nice day! and please help me!

Vilka [71]

Answer:

disappoint

recall

disgusted

reunited

prepare

5 0

2 years ago

Read 2 more answers

A piece of cloth costs 200 if the piece was 5m longer and the cost of each metre of cloth was 2 the cost of the piece would have

Lina20 [59]

Answer: 95metres for the length and the original cost is 2.105

Step-by-step explanation:

Let the initial length be x,

So, x+5=200/2

x+5=100

x=95

Note since the total price is the same and the original length is 95metres.

Therefore, the original cost per metre is

200/95=2.105

8 0

3 years ago

E volume of the object, when you reduce the length of your ruler by a factor of 8, the number of volume elements increases by

otez555 [7]

Answer:

$D=3$ .88

Step-by-step explanation:

We can use this equation:

$N=R^{D}$

Where:

N is the increase factor (N=512)
R is the reduce factor (R=8)
D is the dimension

$512=5^{D}$

We just need to solve it for D

$D=log(512)/log(5)$

$D=3$ .88

Therefore the dimension will be 3

I hope it helps you!

8 0

3 years ago

Read 2 more answers