3 years ago

What expression is equivalent to 121x2-64y

1 answer:

6 0

A is equivalent, as multiplying 2 negatives would produce a positive. Multiplying a positive and a negative get you a negative.

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2.2.PS-8 Find the value of x when 6 - 4x = 6x - 8x + 8. The value of x is

Bess [88]

Answer:

X = -1

Step-by-step explanation:

6 - 4x = 6x - 8x + 8

-6. -6

-4x = -2x + 2

+2x. +2x

-2x = 2

divide both sides by -2

x = -1

6 0

2 years ago

Write the equation of the line through (6,4) that is parallel to the line whose equation is y= 1/2 x+7. Show all work below and

soldier1979 [14.2K]

Answer:

$\displaystyle y = \frac{1}{2}x + 1$

Step-by-step explanation:

4 = ½[6] + b

$\displaystyle 1 = b \\ \\ y = \frac{1}{2}x + 1$

I am joyous to assist you anytime.

5 0

3 years ago

Diameter is 22.5m. Calculate the area (round your answer to 2 decimal places). Use 3.14 for Pi.

Tamiku [17]

Answer:

because r=d/2 it will be

22.5/2=r

r=11.25m

c=2×3.14×11.25

c=70.65msquare

c=7065/1oo

7 0

2 years ago

Simplify<br><br> b + 4 + 4 + b=

tia_tia [17]

Answer:

2b+8 is the simplify expression

7 0

2 years ago

Read 2 more answers

Please help and give a explanation I will give brainliest and 25 points

Doss [256]

Answer:

Addition: -1 + -3 = -4

Subtraction: (-4) - 5 = -10

Step-by-step explanation:

Since adding a positive makes a negative number stay negative, it equals -4.

Then by subtracting a negative with a positive (5), the number stays negative once again, which then equals -10.

8 0

2 years ago