3 years ago

(8.99x10^15) in standard form

Mathematics

1 answer:

Hoochie [10]3 years ago

5 0

8990000000000000 i think

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The perimeter of a square is 4 times as great as the lenght of any of its sides. Determine if the perimeter of a square is propo

egoroff_w [7]

P= 4 times L so yes

3 0

3 years ago

Please help urgently

Minchanka [31]

Answer:

-20

Step-by-step explanation:

Use the distributive property to get $2xy-14$ (you multiply both xy and -7 by 2.) Now plug in the x and y values to get: $2(-1)(3)-14$ . This gets you $-6-14$ which is $-20$ .

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2 years ago

solve the equation for x. show each step of the solution. name the justification for each step of the solution 9/2 (8-x) +36=102

Karo-lina-s [1.5K]

1. You have the following equation:

$\frac{9}{2}(8-x)+36=102-\frac{5}{2} (3x+24)$

2. First, you must apply the Distributive property:

$\frac{72}{2}-\frac{9x}{2}+36=102-\frac{15x}{2}-\frac{120}{2}$

3. Simplify:

$36}-\frac{9x}{2}+36=102-\frac{15x}{2}-60$

3. Add the like terms:

$-\frac{9x}{2}+\frac{15x}{2}=102-60-36-36\\ 3x=-30$

4. Solve for $x$ :

$x=-\frac{30}{3} \\ x=-10$

Therefore, the answer is: $x=-10$

3 0

3 years ago

I need to know what the answer to this because I’m failing

Dafna1 [17]

Answer:

Step-by-step explanation: 12:3=4, 4 x 2= 8

4 0

3 years ago

Which of the following expressions are equivalent?

Dmitry [639]

Answer:

B. 7(6x – 1) and 42x – 7 is equivalent

Step-by-step explanation:

A. –3(3x + 5) and –9x + 5

=–3(3x + 5)=-9x-15 not equivalent

B. 7(6x – 1) and 42x – 7

7(6x – 1)=42x-7 equivalent

C. –6(4x – 3) and –6x

=–6(4x – 3)=-24+18 not equivalent

D. 5(2x + 3y) and 25xy

=5(2x + 3y)=10x+15y not equivalent.

4 0

3 years ago