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Alchen [17]
3 years ago
10

Which answer correct estimates the product of 3.09 × 304.87? A. about 9.0 B. about 9.9 C. about 90 D. about 900

Mathematics
2 answers:
Alinara [238K]3 years ago
7 0
The answer is D. about 900. 3.09 x 304.87 =942.0483. so rounded 
by the tens you would get about 900
Keith_Richards [23]3 years ago
4 0
D.)about 900. reason being  it equals 942.0483, rounding to 942.
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Given below is the odd-number function. Which of the following are equal to O(8)? 
dezoksy [38]
The answer would be B.
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4 0
4 years ago
Read 2 more answers
The function f(x) = 2x + 510 represents the number of calories burned when exercising, where x is the number of hours spent exer
riadik2000 [5.3K]

Answer: 789 calories burned while combining diet with 2 hours of exercise

Step-by-step explanation:

we have that

f(x)=2x+510

g(x)=200x-125

we know that

(f+g)(x)=f(x)+g(x)

substitute

(f+g)(x)=2x+510+200x-125

(f+g)(x)=202x+385

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For x=2 hours

substitute

(f+g)(2)=202(2)+385

(f+g)(2)=789\ calories

therefore

The answer is

789 calories burned while combining diet with 2 hours of exercise

8 0
3 years ago
Macy described four triangles as shown below:
Fudgin [204]
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have the same length, but that length can be anything ...
1 millimeter, 1 light-year ... anything.

Each of the other choices can only be 1 triangle.
For each one, we can find the size of every angle,
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4 0
3 years ago
I need to know how to set up this problem. Please help
ELEN [110]

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7 0
3 years ago
3/4√5-√3 + 2/4√5+√3 =b√3+a√5 find the value of b and a
Zielflug [23.3K]

Answer:

a = 5 / 4

b = 0

Step-by-step explanation:

3/4√5 - √3 + 2/4√5 + √3 = b√3 + a√5

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5/4√5 + 0 = b√3 + a√5

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b = 0 / √3

b = 0

a√5 = 5/4√5

a = 5/4√5 / √5

a = 5 / 4

3 0
3 years ago
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