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2 years ago

Pls say fast :( its my online test

Mathematics

2 answers:

astraxan [27]2 years ago

8 0

Answer:

840

Step-by-step explanation:

x2, x3, x4, x5 = 840

rodikova [14]2 years ago

7 0

Answer:

840

Step-by-step explanation:

7, 14, 42, 168, ?

7 x 2 = 14

14 x 3 = 42

42 x 4 = 168

you see the pattern?
hence,

168 x 5 = 840 (ans)

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Susan was given the following number to convert to scientific notation: 12,050,000 Her answer was 1.25 x 10^7 , but it was marke

KATRIN_1 [288]

Answer:

C. She left out a zero between the two and the five

Step-by-step explanation:

Given that Susan is expected to convert 12,050,000 to scientific notation, what Susan should have done is shown below:

Count the number of decimal places from your right up to before the first digit, and place the decimal point after the first digit. The number of decimal places counted would determine the exponent we are to use.

Here, we have 7 decimal places, counting from the right to the left, therefore, the exponent would be a positive 7.

What Susan should have is:

1.205 × 10⁷ NOT 1.25 × 10⁷.

1.25 × 10⁷ = 12,500,000, which is different from 12,050,000.

Her paper was marked wrong because: "she left out a zero between the two and the five"

7 0

2 years ago

Find the outputs.. please help

morpeh [17]

Answer:

see below

Step-by-step explanation:

The steps are +2 then *4 then -8 then ÷2

Input is 5

5 +2 =7 *4 = 28-8 = 20 ÷2 = 10 Output is 10

Input is 9

9 +2 =11 *4 = 44-8 = 36 ÷2 = 18 Output is 18

Input is 14

14 +2 =16 *4 = 64-8 = 56 ÷2 = 28 Output is 28

Input is 18

18 +2 =20 *4 = 80-8 = 72 ÷2 = 36 Output is 36

Input is 23

23 +2 =25 *4 = 100-8 = 92 ÷2 = 46 Output is 46

Input is 7.5

7.5 +2 =9.5 *4 = 38-8 = 30 ÷2 = 20 Output is 20

Input is 11.54

11.54 +2 =13.54 *4 = 54.16-8 = 46.16 ÷2 = 23.08 Output is 23.08

6 0

3 years ago

Read 2 more answers

What is the integer closest to the square root of 17

Alex Ar [27]

Answer:

Step-by-step explanation:

$\sqrt{16}$ = 4

7 0

3 years ago

Read 2 more answers

True or false? f (x) = 2 · (1/5)^x represents an exponential function growth.

nekit [7.7K]

Hi there!

$\large\boxed{\text{False.}}$

f(x) = 2(1/5)ˣ

Recall the form of an exponential function:

f(x) = a(b)ˣ where:

a = initial value

b = rate of decay/growth

If b > 1, the function is undergoing exponential growth. If b < 1, then the function is undergoing exponential decay.

1/5 < 1, so the function is undergoing exponential decay, not growth.

7 0

3 years ago

What is the value of f(x) when x =0

kobusy [5.1K]

Answer:

-1, 2 and 4

Step-by-step explanation:

6 0

3 years ago