3 years ago

Eric has 4 bags of marbles and 6 single marbles how many marbles does eric have

Mathematics

1 answer:

matrenka [14]3 years ago

6 0

Eric has 46 total marbles (4*10)+6

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Is there an error in this statement If x2 = 25, then x = 5.

katen-ka-za [31]

Yes there is an error in this statement.

because x^2 = 25
so x = 5...this is one condition

Another condition is x = -5
(-5)^2 = 25 (this is also true)

7 0

3 years ago

Read 2 more answers

What is the sum of 8.4*10^8 and 4.2*10^7 written in scientific notation?

anyanavicka [17]

(8.4*10^8) + (4.2*10^7)

= 882,000,000
= 8.82*10^8

Hope it helped :)

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3 years ago

Which statement best describes how to determine whether f(x) = 9- 4x4 is an odd function?

vitfil [10]

Answer:

Option C.

Step-by-step explanation:

Note: In the given function the power of x should be 2 instead of 4, otherwise all options are incorrect.

Consider the given function is

$f(x)=9-4x^2$

If $f(-x)=f(x)$ , then $f(x)$ is an even function.

If $f(-x)=-f(x)$ , then $f(x)$ is an odd function.

Now, substitute x=-x in the given function.

$f(-x)=9-4(-x)^2$

$f(-x)=9-4(x)^2$

$f(-x)=f(x)$

So, the given function not an odd function. It means it is an even function.

To check whether the given function is odd, we have to determine whether $9-4(-x)^2$ is equivalent to $-(9-4(x)^2)$ .

Therefore, the correct option is C.

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3 years ago

A survey of 9,000 randomly selected dentists practicing in the untied states found that 3,600 of them used text messaging to rem

photoshop1234 [79]

58,800.

3600 divided by 9000 is 0.4

147,000 * 0.4 is 58,800

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3 years ago

A group of students were doing a science experiment in which they measured wind speed and temperature. The first day the wind sp

Mama L [17]

So the difference of speed will be 25-17 = 8 mph the last one choice

hope helped

8 0

3 years ago