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3 years ago

Can someone help me plz. my answer was 9 but it was wrong. plz help!! solve for x 3x+9=27

Mathematics

1 answer:

bija089 [108]3 years ago

3 0

The answer is 6
See attached.

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Please help<br>........

o-na [289]

Answer:

1. monomial

2. Binomial

3. polynomial

4.binomial

5 trinomial

6 binomial

3 0

2 years ago

What are the coordinates of the endpoints of the midsegment for DEF that is parallel to DE

Nutka1998 [239]

Answer:

$\left(\dfrac{x_D+x_F}{2},\dfrac{y_D+y_F}{2}\right),$ $\left(\dfrac{x_E+x_F}{2},\dfrac{y_E+y_F}{2}\right).$

Step-by-step explanation:

Let points D, E and F have coordinates $(x_D,y_D),\ (x_E,y_E)$ and $(x_F,y_F).$

1. Midpoint M of segment DF has coordinates

$\left(\dfrac{x_D+x_F}{2},\dfrac{y_D+y_F}{2}\right).$

2. Midpoint N of segment EF has coordinates

$\left(\dfrac{x_E+x_F}{2},\dfrac{y_E+y_F}{2}\right).$

3. By the triangle midline theorem, midline MN is parallel to the side DE of the triangle DEF, then points M and N are endpoints of the midsegment for DEF that is parallel to DE.

6 0

2 years ago

V is the midpoint of UW. If UV = x + 2 and VW = 2x, what is VW?

Elan Coil [88]

Answer:

8 units

Step-by-step explanation:

x + 2 = 2x

2 = 2x - x

x = 2

uW = 2(2+2) = 8

3 0

2 years ago

Read 2 more answers

Find the values for a and b that would make the equality true.

zepelin [54]

Answer:

a = - 4, b = 5

Step-by-step explanation:

Expand the left side, then compare the coefficients of like terms.

- 3(2x² + ax + b)

= - 6x² - 3ax - 3b, compare to - 6x² + 12x - 15

Compare coefficients of x- terms

- 3a = 12 ( divide both sides by - 3 )

a = - 4

Compare constant terms

- 3b = - 15 ( divide both sides by - 3 )

b = 5

8 0

2 years ago

I need to get to 100 percent please help me this is due tomorrow

Amiraneli [1.4K]

Maybe 120-130
As it’s more than 90 but slightly less than 135

4 0

2 years ago

Read 2 more answers