Answer:
i can help
Step-by-step explanation:
what the question
Step-by-step explanation:
domain = {-7, -3, 1}
range ={-8, -5, 7, 8}
Answer:
c.
Step-by-step explanation:
If its isoceles, then LM is equal to LN. This means 3x-2 = 2x+1. 3x minus 2x is x. 2 plus 1 is 3. So x = 3. So it needs to be c or d. since LM and LN are the same answers, go to MN and find the answer. If you siubstitute 3 for x in 5x-2, then you get 13.
Answer:
138 cm.
Step-by-step explanation:
So first, we find the S.A. of the front and back.
The diagram says the side length of the front is 3 cm. and 3 cm.
3x3=9. So then, the back is also 9 cm, 9+9=18.
Now to find the S.A.'s of the four sides, you have to see the side lengths of each of them. The side lengths are 3 and 10.
3x10=30. This means each of them is 30 cm.
30x4=120. 120 is the total surface area of the four sides.
To find the total surface area of the whole rectangle, you add all the surface areas.
120+18=138 cm. (Not squared, since it's surface area and not area.)
Answer:
12 - 3 y ÷ 2 + y( 2 y - 4 ÷ y ) = 21.51.
Step-by-step explanation:
Here, the given expression is:
12 - 3 y ÷ 2 + y( 2 y - 4 ÷ y )
Now, we need to evaluate the given expression for y = 3
12 - 3 y ÷ 2 + y( 2 y - 4 ÷ y ) by the rule of BODMAS
12 - 3 y ÷ 2 + y( 2 y - 4 ÷ y ) = 12 - 3(3) ÷ 2 + 3(2(3) -4 ÷ 3)
= 12 - 9 ÷ 2 + 3( 6 - 4 ÷ 3)
= 12 - <u>9</u><u> ÷ 2</u> + 3( 6 - <u>4 ÷ </u><u>3</u>)
= 12 - <u>4.5</u> + 3( 6 - <u>1.33</u>)
= 7.5 + 3(4.67)
= 7.5 + 14.01
= 21.51
So, 12 - 3 y ÷ 2 + y( 2 y - 4 ÷ y ) for y = 3 is 21.51.
