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Firlakuza [10]
3 years ago
13

It’s math can you help with number 3 please?

Mathematics
2 answers:
Alja [10]3 years ago
7 0

Answer:

The correct should be 25.

Step-by-step explanation:

If this is incorrect let me know and I will correct it.

LenKa [72]3 years ago
3 0

Answer:

25

Step-by-step explanation:

16+9

You might be interested in
A(x) = -0.015x^3+1.05xA ( x ) = − 0.015 x 3 + 1.05 x gives the alcohol level in an average person's blood x hrs after drinking 8
goldfiish [28.3K]

Answer:

Yes

Step-by-step explanation:

the function that gives the alcohol level is:

A ( x ) = - 0.015 x^3 + 1.05 x

where x is the number of hours.

we need to know if after 4 hours an average person is legally drunk, thus:

x=4

and we substitute this in the function:

A ( 4 ) = - 0.015 (4)^ 3 + 1.05(4)

solving these operations we obtain:

A(4)=-0.015(64)+4.2\\A(4)=-0.96+4.2

A(4)=3.24

the alcohol level after 4 hours is 3.24.

Since a person is considered to be legally drunk if the level exceeds 1.5, and we obtained 3.24 which is greater than 1.5, a person who has been drinking for 4 hours under the conditions indicated by the problem would be considered legally drunk.

5 0
3 years ago
What is the domain of this table X 1 2 3 4 Y 2 4 3 2
Hoochie [10]
1,2,3,4 are the domain. The x column is always the domain.
3 0
4 years ago
Please help with this problem
Dennis_Churaev [7]

Answer:

that looks hard

Step-by-step explanation:

that's what she said

lol

4 0
3 years ago
Linda and Colleen both leave the library at the same time, but in opposite direction. If Colleen travels 8mph faster than Linda
pshichka [43]
X - Linda's speed
(x+8 )- Colleen's speed

8x - Linda's distance for 8 h
8(x+8) = 8x+64  - Colleen's distance for 8 h

8x + 8x + 64 = 176 - distance between Colleen and Linda after 8 h


8x + 8x + 64 = 176 
16x +64 = 176
16x = 176 - 64
16x = 112
x= 7 mph Linda's speed
x+8
= 7+8 = 15 mph Colleen's speed
8 0
3 years ago
Evaluate: 23 + x/8 for x = 8
sveta [45]
23 + x/8

substitute 8 in x

23 + 8/8

23 + 1 = 24
8 0
4 years ago
Read 2 more answers
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