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Tpy6a [65]
2 years ago
5

A function is given by a table of values,a graph, a formula, or a verbal description. Determine whether it is one to one.

Mathematics
1 answer:
Likurg_2 [28]2 years ago
6 0
A) it isn't
b) it is
c) it isn't
d) it is
e) it isn't
f) it isn't
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Which number has the least absolute value?
8090 [49]
A.

Explanation: The bigger the negative number, the lower the number actually is.
4 0
2 years ago
a. How wide must a wall footing be if the load is 9,500 pounds per foot of wall length, and the footing rests on a sandy gravel?
Phantasy [73]

Answer:

a) 38"

b) L = 5.7'

Step-by-step explanation:

a) Given

P = 9,500 lb/ft

Thick = 18"

We assume an allowable bearing pressure of σ = 3000 lb/sf

If Stress = Force / Area

σ = P/A

Solving for area

A = P/σ  ⇒  A = 9,500 lb/ft/3000 lb/sf

⇒  A = 3.167 sf,  or  3.167 ft wide, per foot of length.

⇒  A = 38" wide

We can see the pic 1 in order to understand the answer.

b) Given

P = 65,000 pounds = 65,000 lb

Thick = 18" = 1.5'

We assume an allowable bearing pressure of σ = 2000 lb/sf

If Stress = Force / Area

σ = P/A

Solving for area

A = P/σ  ⇒  A = 65,000 lb/2000 lb/sf

⇒  A = 32.5 sf

then A = L²  ⇒  L = √A = √(32.5 sf) = 5.7 ft

Finally L = 5.7'

We can see the pic 2 in order to understand the answer.

3 0
3 years ago
Arvin bought 4 Nintendo switch games for $44.50 per game. How much
Free_Kalibri [48]

Answer:

$195.80

Step-by-step explanation:

44.50 x 4 = 178

178 x 10 = 17.80

178 + 17.80 = $195.80

4 0
2 years ago
Read 2 more answers
A chemist is mixing a 50% salt solution with an 18% salt solution to make 40 L of a new solution that will contain 30% salt. How
Karolina [17]

Answer:

See below

Step-by-step explanation:

Sum of ingredients = sum of final solution

.50 x      where x =   50 percent amount    then 40 - x = 18% amount

.50 x    + .18(40 - x)   =   .30 ( 40 )

.50 x   + 7.2 - .18x  =   12

.32x  = 4.8

x = 15 L of 50%     25 liters of 18%

3 0
2 years ago
The circumference of a quarter is approximately 2.88 inches. If the quarters are arranged as shown, what is the length of the ro
Nuetrik [128]

Answer:

11.52

Step-by-step explanation:

If there are 4 quarters, and each has a lenght of 2.88 you mutiply by 4.

4*2.88=11.52

4 0
3 years ago
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