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grigory [225]
3 years ago
12

Which integer is 30 closest to

Mathematics
2 answers:
vesna_86 [32]3 years ago
4 0

Answer:

7,4,15,6

Step-by-step explanation:

7,4,15,6

allsm [11]3 years ago
4 0

Answer:

29 and 31

Step-by-step explanation:

Integers are not fraction or decimals.

<h2><u><em>Could I please have BRAINLIEST?</em></u></h2>
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I don't really understand this yet, could someone please help?
Nookie1986 [14]

Answer:

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5 0
3 years ago
Suppose that f is an exponential function with f (4) = 14 and f (5) = 16. What is the growth factor for f?
bulgar [2K]
You have to do this in quite a few steps.  Your two points, written in coordinate form, are (4, 14) and (5, 16).  The standard form for an exponential function is y=a(b) ^{x}.  Since neither one of these gives us an initial value of (0, a), we have to sub in the two points into 2 equations, creating a system that we can then solve for a, then b.  Our system will look like this after we sub in the x and y values from each point. 14=a(b) ^{4} and 16=a(b) ^{5}.  We need to solve for a and b.  Let's solve for a first.  Do that in each equation by dividing by the b^power: \frac{14}{b ^{4} } =a and \frac{16}{b ^{5} } =a.  By the symmetric property, if equation 1 = a and equation 2 = a, then equation 1 = equation 2.  So let's set them equal to each other: \frac{14}{b ^{4} } = \frac{16}{b ^{5} }.  Cross multiply to get 14b ^{5} =16b ^{4}.  Now divide each side by the b with the lower exponent so we can cancel one of them out. \frac{14b ^{5} }{b ^{4} } = \frac{16b ^{4} }{b ^{4} }.  The b^4 cancels by the 16 and reduces by the 14 to leave you with this: 14b=16, and b = 8/7, or 1.14 rounded.  Now we will sub that in to one of our equations and solve for a. 14=a( \frac{8}{7}) ^{4} and 14=a( \frac{4096}{2401} )Multiply both sides by 2401 to find that a = 8.21 rounded.  So your exponential equation is y=8.21(1.14) ^{x}.  a = 8.21 is the growth factor.
4 0
3 years ago
24. If 2x-7=3, then 3x+1 =<br> 1.4<br> 2.5<br> 3.7<br> 4.12<br> 5. 16
Vika [28.1K]

Answer:

Step-by-step explanation:

if 2x-7=3

2x=3+7

2x=10

x=5

then

3(5)+1=16

4 0
3 years ago
Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.
erastova [34]

Answer:

C) {6+√43, 6-√43}

Step-by-step explanation:

Applying,

x = [-b±√(b²-4ac)]/2a.................... Equation 1

From the question,

Given: a = 1, b = -12, c = 7

Substitute these values into equation 1

x = [-(-12)±√(-12²+4×1×7)]/2×1

x = [12±√(144+28)]/2

x = [12±√172]/2

either,

x = (12-√172)/2

x = (12-2√43)2

x = (6+√43)

or

x = (12+√172)/2

x = (12+2√43)/2

x = (6+√43)

Hence,

The right answer is C). {6+√43, 6-√43}

8 0
3 years ago
The temperature outside dropped 13 degrees Fahrenheit in 7 hours. The final temperature was -2 degrees Fahrenheit. What was the
inysia [295]

Answer:

Step-by-step explanation:

11 degrees. 13 + -2 = 11. The starting temperature was 11 degrees farenheit

4 0
3 years ago
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