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Natalija [7]
2 years ago
13

During construction the workers need to mix dried bentonite into the concrete as it is being mixed to get the desired consistenc

y. The workers decide to mix 800 mg of Bentonite to be mixed with 198 lb of concrete mix every 8 hours. The information for the concrete shows that 25-75 mg/kg per day is the appropriate mixture consistency.
Are the workers within the desired range? (Note: 1kg = 2.2 lbs)
Mathematics
1 answer:
krek1111 [17]2 years ago
7 0

Answer:

The answer is   A

Step-by-step explanation:

Khan

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Answer:

|(15,055) is the number of pages in a book with

15,055 words.

Step-by-step explanation:

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8 0
3 years ago
The table of values represents an exponential function f(x).
Ostrovityanka [42]

Answer:

-3.98 (nearest hundredth)

Step-by-step explanation:

The average rate of change of function f(x) over the interval a ≤ x ≤ b is given by:

\dfrac{f(b)-f(a)}{b-a}

Given interval:  -2 ≤ x ≤ 2

\implies a = -2

\implies b = 2

\implies f(a) = f(-2)=16

\implies f(b) =f(2)= \dfrac{1}{16}

Substituting the values into the equation:

\begin{aligned}\implies \textsf{rate of change} & =\dfrac{\frac{1}{16}-16}{2-(-2)}\\\\ & = \dfrac{-\frac{255}{16}}{4}\\\\ & = -\dfrac{255}{64}\\\\ & = -3.98\: \sf (nearest\:hundredth)\end{aligned}

7 0
2 years ago
please help me if you think you're beautiful hot funny kind lovely please help me please i wanna get a good grade please help me
Svetllana [295]
I disagree with her because for every 1 is six, it shouldn’t have +y on it that is just adding a number that is unneeded
8 0
2 years ago
Evaluate the expression when x = 1/2 and y = -2/5. Show all work.<br>1. -x + y<br>2. x +2y
NISA [10]
I am old, so I like to use paper & pencil

4 0
3 years ago
If f(a)=(a•a•a)-(a•a) + a-1 what is the value of f(-3)?
Elena L [17]

Answer:

-40

Step-by-step explanation:

f(a) = a³ - a² + a - 1

f(-3) = (-3)³ - (-3)² + (-3) - 1

f(-3) = (-27) - (9) + (-3) -1

f(-3) = -27 - 9 -3 - 1

f(-3) = -40

3 0
3 years ago
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