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Anna35 [415]
3 years ago
7

Which number is equal to 7 (3.5×10^4) written in scientific notation

Mathematics
1 answer:
seraphim [82]3 years ago
6 0
The correct answer is:  [B]:  " 2.45 * 10⁵ " .
___________________________________________________________
<u>Note</u>:  

7 * 3.5 =   24.5 ;

24.5 * 10⁴ = 2.45 * 10⁵ .
___________________________________________________________
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25. Algebraically determine whether the function k(x) = x6 - x2 + 7 is odd, even, or neither. Explain your
alekssr [168]

Answer: The function is EVEN.

Step-by-step explanation:

For this exercise it is important to remember that:

1. A function f(x) is even if and only if:

f(-x) = f(x) for all "x"

2. A function f(x) is odd if and only if:

f(-x) = -f(x) for all "x"

So knowing that, and given the following function k(x):

k(x)=x^6 - x^2 + 7

You can plug -x in for "x", order to know if this is even. Then, you get:

k(-x)=(-x)^6 - (-x)^2 + 7\\\\k(-x)=x^6-x^2+7

Therefore, since:

f(-x) = f(x)

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7 0
3 years ago
ANSWER FAST PLEASE!!!
Ksivusya [100]

Answer:

Yes, with 12 feet leftover.

Step-by-step explanation:

For this problem, you will need to find the area of the floor and the area of both sides of the tent. To find the area of the floor, you will simply need to do 6(8) = 48. To find the area of the sides, you will need to use the Pythagorean theorem to find the height of the sides. Simply divide 6 by 2 to find b². So, the formula will be 3²+4² = c². Solve to get c = 5. Now, find the area of the rectangle by using the formula for area. 8(5) = 40. Multiply 40 by 2 because there are two sides. Now add the total area of both sides and the floor to get a total of 128. Now to see if the canvas can cover the area of the tent, do 140 - 128 to get 12. So the answer is yes, with 12 feet leftover.

Work:

Area of the floor:

6(8) = 48

Area of the sides:

A = 8(h)(2)

A = 16(h)

h² = 3² + 4²

h² = 9 + 16

\sqrt{h^{2} } = \sqrt{25}

h = 5

A = 8(5)(2)

A = 80

Total area of the tent:

80 + 48 = 128

Total area of the canvas:

14(10) = 140

Answer to the question:

140 - 128 = 12

By the way, sorry for the late answer. I bet this was on a test, right?

8 0
3 years ago
How much grapefruit juice is needed to make 32 servings of fruit punch?
lys-0071 [83]
So you need 3 cups of grapefruit juice to make 8 servings. you know that 32 divided by 8 is 4. so that means you need 4 times more grape fruit juice. that means you do 3 x 4 and get 12. so the answer is A.12 cups.
7 0
3 years ago
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Anestetic [448]

Answer:

-5

Step-by-step explanation:

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2v = -10

v = -10/2

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6 0
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