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Alisiya [41]
3 years ago
15

How would i explain negative exponents to a little kid

Mathematics
1 answer:
Tasya [4]3 years ago
7 0
Negative exponets are like normal ones 
ex. 2^-2=-4 another way to do it 2^-2=2^2 with a - so you can do 2^2=4 add the - and it becomes -4.
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A piece of fabric is randomly selected from a stack of fabric that contains 80 striped, 40 solid, and 60 polka-dotted pieces.
Lynna [10]
No, I just took the test, 

The answer would be 

C. P(solid)22
7 0
3 years ago
Read 2 more answers
The surface area of a sphere is decreasing at the constant rate of 3π sq. cm/sec . At what rate is the volume of the sphere decr
olga nikolaevna [1]
Whooh



SA=4pir²
take derivitive
dSA/dt=8pir dr/dt

and do the volume as well
V=(4/3)pir³
dV/dt=4pir² dr/dt

we need to solve for dV/dt
to do taht we need dr/dt
so

dSA/dt=8pir dr/dt
given dSA/dt=3pi cm/sec
r=2
3pi=8pi2 dr/dt
3=16 dr/dt
3/16=dr/dt

now do the volume
dV/dt=4pir² dr/dt
r=2
dr/dt=3/16
dV/dt=4pi2² (3/16)
dV/dt=16pi(3/16)
dV/dt=3pi

nice
the volume of the sphere is decreasing at 3pi cm/sec as well
3 0
3 years ago
Add: (3x2 - 5x + 6) + (9 - 8x - 4x2) A) 12x2 - 13x + 2 B) 7x2 + 3x - 3 C) 7x2 - 13x + 15 D) -x2 - 13x + 15
kati45 [8]

Answer:

D

Step-by-step explanation:

So we have the expression:

(3x^2-5x+6)+(9-8x-4x^2)

Combine like terms:

=(3x^2-4x^2)+(-5x-8x)+(6+9)

Add or subtract:

=(-1x^2)+(-13x)+(15)

Simplify:

=-x^2-13x+15

Our answer is D

4 0
2 years ago
If you place a 26-foot ladder against the top of a 10-foot building, how many feet will the bottom of the ladder be from the bot
True [87]

Answer:

24 foot

Step-by-step explanation:

We are given that

Length of ladder=26 foot

Height of building=10 foot

We have to find the distance between the bottom of ladder and the bottom of building.

Pythagorus theorem:

(Hypotenuse)^2=(Base)^2+(Perpendicular\;side)^2

We have hypotenuse =AC=26 foot

Perpendicular side =AB=10 foot

Base=BC

Substitute the values in the given formula

(26)^2=(10)^2+(BC)^2

676=100+(BC)^2

(BC)^2=676-100=576

BC=\sqrt{576}=24 (Take positive because length is always positive)

BC=24 foot

Hence, the bottom of the ladder will be 24 foot  from the bottom of the building.

8 0
3 years ago
Please help I am begging !!!!!25 points!!!!! Brainlest !!!!!! Please help me I really need it the questions are on the bottom th
tangare [24]

Answer:

A the sybol is facing the wrong way so it means greater than or equal not less than or equal to

B the gross value is accuratly represented and the symbol is facing the correct way

I think


6 0
3 years ago
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