3 years ago

Which number is not in scientific notation? 3.2 ⋅ 10–2 15 ⋅ 1020 8 ⋅ 1013 1.42 ⋅ 10–9 show your work

1 answer:

5 0

The one that is wrong is 15 times 10 to the 20th power because the number 15 is suppose to be changed/ decimal needs to be moved so it becomes a number between 1 and 5 which is 1.5

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Solve this equation

Novosadov [1.4K]

B. 9^2

explanation: 3^4 is equivalent to 3*3*3*3, which is 81
9^2 (9*9) also equals 81

8 0

2 years ago

The equation for line g can be written as y = x + 5. Parallel to line g is line h, which passes through the point (-6, -4). What

Wewaii [24]

Answer:

y=x+2

Step-by-step explanation:

y=mx+b, m=1, x=-6, y=-4

-4=(1)(-6)+b

-4=-6+b

2=b

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3 years ago

The value of y varies directly with x, and y=10 when x=4. Find x when y=14.

damaskus [11]

$y=10\ \ \ and\ \ \ x=4\\\\
y=14\ \ \ and\ \ \ x=?\\\\
Making\ ratio:\\
10-4\\14-x\\\\
Cross\ multiplication:\\
10x=4*14\\
10x=56\ \ \ |Divide\ by\ 10\\x=5,6\\\\solution\ is\ x=5,6.$