Factorise 2x squared -5x -12

Answers

Answer 1

Answer: 2x^2-5x-12 guess (2x+3)(x-4) works 2x^2+3x-8x-12 2x^2-5x-12 (2x+3)(x-4)

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Find the measure of each angle below if angle 1 = 38* and s || t.Angle 2=

Angle 3=

Angle 4=

Answers

Angle 2= 38 degree

Angle 3= 142 degree

Angle 4= 142 degree

Isthere 100 inches in 8 foot

Answers

No there are 96 inches in 8 feet because,
12 inches = 1 foot
12 x 8 = 96
so there are 96 inchs in 8 feet

No 8×12=96 96 inches in 8 foot

the African bush elephant weighs between 4.4 tons and 7.7 tons. what are its least and greatest weights , rounded to the nearest ton

Answers

Answer: Least and greatest weights of the African bush elephants are 4 tons and 8 tons respectively.

Step-by-step explanation:

Weight of the African bush elephant = 4.4 tons

Weight of the African bush elephant = 7.7 tons

So, Least weights of the African bush elephants =4.4

Rounded to nearest ton = 4 tons

And ,

Greatest weights of the African bush elephants = 7.7

Rounded to nearest ton = 8 tons

Hence, least and greatest weights of the African bush elephants are 4 tons and 8 tons respectively.

It's 4 tons and 8 tons because if is 5 or more then you round up and if it's less than 5 you round down ;)))

it takes 32 minutes for three people to paint for walls. How many minutes does it take for people to paint seven walls?

Answers

it takes 10.7 minutes

That will be 56 minutes

Ryans living room is 10 feet wide, 12 feet long, and 10 feet high. If one gallon of paint covers 400 square feet of surface area, how many gallons of paint would Ryan need to paint all four walls and the ceiling? Please help.

Answers

we have to calculate the suface of the four walls and the ceiling.
Surface of the four walls=2(10 ft * 10ft ) + 2(12 ft * 10 ft)=200 ft² + 240 ft²=
=440 ft²
Surface of the ceiling=10 ft * 12 ft=120 ft²

Total surface=440 ft² + 120 ft²=560 ft²

Now, we have to caluclate the number of gallons of paint.

1 gallon------------------------400 ft²
x----------------------------------560 ft²

x=(1 gallon * 560 ft²) / 400 ft²=1.4 gallons.

answer: Ryan need to paint all four walls and the ceiling 1.4 gallons.

What is the answer to (-6)-((-2)-5)2

Answers

( -6) - ((-2) - 5) × 2

First, simplify your brackets. / Your problem should look like: $-6 - (-2 - 5) x 2$
Second, simplify -2 - 5 to get -7. / Your problem should look like: $-6 + 7 x 2$
Third, multiply 7 × 2 to get 14. / Your problem should look like: $-6 + 14$
Fourth, simplify. / Your problem should look like: $8$

Answer: 8

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