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Stells [14]
3 years ago
9

Which of the following is the same as 8.4x 10^2 A.8,400 B.840 C.84 D. .84

Mathematics
1 answer:
zysi [14]3 years ago
6 0

Answer: Your answer is B.840


Step-by-step explanation:

What you do first is the exponents 10^2 is 100

8.4 x 100 is 840 because when you multiply you move the decimal points the amount of zero's you have to the right but when you divide you do the opposite. You go left the amount of zeros there are.


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Ms Sherman is preparing 5 and 5/8 cups of rice for his family reunion. She plans to use 1/4 of a cup for each serving. How many
Temka [501]

5 5/8  as an improper fraction

(8*5 +5) /8 = 45/8

45/8 divided by 1/4 =

copy dot flip

45/8 * 4/1 = 45/2

22 1/2

She has 22 1/2 servings

4 0
3 years ago
The length of a rectangle is shown below: On a coordinate grid from negative 6 to positive 6 on the x-axis and on the y-axis, tw
sukhopar [10]

Answer:

<em>Would be the answer D(1, −4)  </em>

Step-by-step explanation:

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3 years ago
The number value of 2 in the number 4256​
Anastaziya [24]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
If a = 7 and b = 3 find the value of 2a + b
weeeeeb [17]
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Both values are given where:
a = 7 and b = 3

Substitute the values into the given expression.

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Hope it helps :]
5 0
2 years ago
Read 2 more answers
A professor gives two types of quizzes, objective and recall. He is planning to give at least 15
nadya68 [22]

Answer:

x₁ = 20     x₂ = 0

z (min) = 20

Step-by-step explanation:

According to the problem statement:

Let´s call

Objective quiz =  x₁               Recall quiz =  x₂

First constraint

Quantity of quizzes at least 15

x₁  +  x₂  ≥ 15

Second constraint:

Preparation time   at least 300 minutes, then

15*x₁  +  30*x₂  ≥   300

Third constraint

Average score  at least  85 points

7*x₁  +  5*x₂   ≥  85

General constraint x₁ ≥ 0   x₂ ≥ 0

Objective function z is:

z = 1* x₁ + 1,5*x₂     to minimize

The model:

z = x₁  + 1,5x₂      to minimize

Subject to

x₁  +  x₂  ≥ 15

15*x₁  +  30*x₂  ≥   300

7*x₁  +  5*x₂   ≥  85

Using Atozmax (online solver) we find

x₁ = 20     x₂ = 0

z (min) = 20

5 0
2 years ago
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