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disa [49]
3 years ago
10

Please help!

Mathematics
1 answer:
Sonbull [250]3 years ago
7 0

Answer:

Number 3

Step-by-step explanation:

ur welcome

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20 POINTS PLEASE HELP IM IN CLASS RIGHT NOW
luda_lava [24]

Answer:

496

Step-by-step explanation:

992/2 =496

5 0
3 years ago
Look at the following expression. Are there any values of x for which the expression is not defined under the set of real number
almond37 [142]

The expression \frac{4}{\sqrt{x+2} } is not defined at x= -2 & for all values of x  less than -2 .

<u>Step-by-step explanation:</u>

We have , a given expression as \frac{4}{\sqrt{x+2} } : Basically we need to find domain for this function and see for which values of x the above function is undefined . Domain of a function is the set of values of x for which the function is defined . We have a rational expression, \frac{4}{\sqrt{x+2} }  it's a fractional function which means denominator can be 0 . Denominator = \sqrt{x+2} \neq 0

⇒ \sqrt{x+2} \neq 0

⇒ x+2\neq 0

⇒ x \neq  -2

So , x \neq  -2 . Also , Denominator is a square root expression so it can't be negative inside root ∴ x+2 > 0 ⇒ x> -2 i.e. x must be greater than -2.

Therefore, the expression \frac{4}{\sqrt{x+2} } is not defined at x= -2 & for all values of x  less than -2 .

4 0
3 years ago
A culture started with 4,000 bacteria. after 8 hours, it grew to 4,400 bacteria. Predict how many bacteria will be present after
Natasha_Volkova [10]
4,450. 50 bateria is added every hour
7 0
3 years ago
I require help (why this stuff so hard)
kow [346]

Answer:

x should be -3

Step-by-step explanation:

f(x) = 5/3x + 10

f(-3) = (5*-3)/3 + 10

f(-3) = -15/3 + 10

f(-3) = -5 + 10

f(-3) = 5

g(x) = -2x - 1

g(-3) = -2(-3) - 1

Negatives cancel out

g(-3) = 2(3) - 1

g(-3) = 6 - 1

g(-3) = 5

5 is equal to 5, so x should be -3 in this case.

3 0
3 years ago
Help like in a second Which expression does the graphic represent? 8 positive tiles. 1 tile is crossed out. 7 minus 1 7 minus (n
Alinara [238K]

Answer:

which is the graphic

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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