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3 years ago

Please help no files

Mathematics

1 answer:

valentina_108 [34]3 years ago

3 0

Answer:

x =1 for the first problem

and for second question

Step-by-step explanation:

Let's solve your inequality step-by-step.

|2x+5|>0.5

Solve Absolute Value.

|2x+5|>0.5

We know either2x+5>0.5or2x+5<−0.5

2x+5>0.5(Possibility 1)

2x+5−5>0.5−5(Subtract 5 from both sides)

2x>−4.5

2x2>−4.52(Divide both sides by 2)

x>−2.25

2x+5<−0.5(Possibility 2)

2x+5−5<−0.5−5(Subtract 5 from both sides)

2x<−5.5

2x2<−5.52(Divide both sides by 2)

x<−2.75

Answer:

x>−2.25 or x<−2.75

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blagie [28]

Answer:

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

Solve (7.93205×10^8) • (3.12×10^-8)

lord [1]

Answer:

2.4747996 * 10^1

Step-by-step explanation:

When working in scientific notation, (a * 10^b) * (c*10^d)

Multiply a*c then add 10 ^(b+d)

Then check that the product of ac is between 1 and 10, if not then we need to adjust so that it is

(7.93205×10^8) • (3.12×10^-8)

(7.93205) • (3.12) =24.747996

10^(8-8) = 10^0

24.747996 needs to be adjusted to be between 1 and less than 10

we move the decimal 1 to the left so we add 1 to the exponent

2.4747996 * 10^0+1

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4 years ago

Read 2 more answers

What is the intersection of a and b if A = {1, 2, 3, 4, 5} and B = {3, 4, 5}?

trasher [3.6K]

Answer:

3 and 4

Step-by-step explanation:

since they are the numbers where the two sets meet.

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3 years ago

The perimeter of a square must be greater than 102 inches but less than 138 inches. Find the range of possible side lengths that

liberstina [14]

Answer:

s ∈ (25.5,34.5)

''s'' is in inches unit

s ∈ IR

Step-by-step explanation:

We know that the perimeter of a square is $P=4s$

Where P is the perimeter and s is the length of a side.

We want the perimeter to be greater than 102 inches but less than 138 inches.

We can write :

102 inches < P < 138 inches

If we replace P = 4s in the expression :

102 inches < 4s < 138 inches

Dividing by ''4''

25.5 inches < s < 34.5 inches

If we want the perimeter to be greater than 102 inches but less than 138 inches the length of a side must be greater than 25.5 inches but less than 34.5 inches.

Writing this in interval notation

s ∈ (25.5,34.5)

s ∈ IR

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3 years ago