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3 years ago

I nned help understanding this math problem.

Mathematics

2 answers:

elixir [45]3 years ago

6 0

Answer:

Step-by-step explanation:

From the midsegment theorem we can conclude that

QR = $\frac{1}{2}$ NP

Using QR = 3x + 2 and NP = 2x + 16, then

3x + 2 = $\frac{1}{2}$ (2x + 16) = x + 8 ( subtract x from both sides )

2x + 2 = 8 ( subtract 2 from both sides )

2x = 6 ( divide both sides by 2 )

x = 3

As a check

QR = 3x + 2 = 3(3) + 2 = 9 + 2 = 11

NP = 2x + 16 = 2(3) + 16 = 6 + 16 = 22

Thus QR is one half NP is confirmed

poizon [28]3 years ago

5 0

Answer:

Step-by-step explanation:

QR=1/2NP ⇔ NP=2QR ⇔ 2x+16=2(3x+2) ⇔ 2x+16=6x+4 ⇔ 12=4x ⇔ x=3

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I need help solve this !! Pls help pls not links ;)

Alex Ar [27]

Answer:

A / D / E

Step-by-step explanation:

f (1) = 1

f(2) = 5

f(3) = 9

5 0

3 years ago

Find the 12th term of the geometric sequence

alexgriva [62]

The 12th term of the geometric sequence would be -8,388,608.

Step-by-step explanation:

Given that,

The first term of geometric sequence is = a1 = 2

a2 = -8

a3 = 32

Now, the formula for nth term of a geometric sequence is $an = a*r^{n-1}$

So,

$a1 = a*r^{1-1} = a*rx^{0} = a*1 = a$

$a2 = a*r^{2-1} = a*rx^{1} = a*r$

Now,

a = 2

a*r = -8

By putting the value of a, we get

2*r = -8

r = -4

For 12th term, the formula would be:

$a1 2 = a*r^{12-1} = a*r^{11}$

now, put the values of a and r:

$a12 = 2*(-4)^{11}$

a12 = 2 * (-4,194,304)

a12 = -8,388,608

Hence, the 12th term of the geometric sequence would be -8,388,608.

6 0

3 years ago

HELP 5 MINUTES LEFT!!! 25 POINTS!!!! Reza is ordering pizza and chicken fingers for a birthday party. Each pizza costs $15 and e

Bess [88]

The answer should be 15x + 10y ≤ 120

Since the pizza is x and chicken fingers is y then this should be the answer.

I would explain more but you only have five minutes left :)

4 0

3 years ago

Kayla wants to fence in a rectangular dog pen that is 30 ft by 40 ft How would you use wha

castortr0y [4]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the dimension of the dog pen = 30 ft by 40 ft.

Using the knowledge of geometry, that know that a rectangle has been built, the area of the pen should be :

Area of rectangle = Length * width

Area = 40 * 30

Area = 1200 ft²

Perimeter of rectangle = 2(Length + width)

Perimeter = 2(40 + 30)

Perimeter = 2(70)

Perimeter = 140 feets

Hence, area of the pen should be 1200 ft² and its perimeter or fencing should measure 140 feets

4 0

3 years ago

What is the simpler for of the expression (6x^2-1x^2+1)/(2x+1)

Sedaia [141]

The answer in simplified form is {5x^2+1}{2x+1}

5 0

4 years ago