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adoni [48]
2 years ago
14

Tom’s weekly salary increased from $240 to $300. What was the percent change?

Mathematics
2 answers:
s2008m [1.1K]2 years ago
8 0

Answer:

25% increase

Step-by-step explanation:

astraxan [27]2 years ago
3 0

Answer: 25%

Step-by-step explanation:

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The function y = x 2 - 10x + 31 has a ____
katrin [286]

Answer:

Option B. minimum is correct for the first blank

Option C. 6 is correct for second blank.

Step-by-step explanation:

In order to find the maxima or minima of a function, we have to take the first derivative and then put it equal to zero to find the critical values.

Given function is:

f(x) = x^2-10x+31

Taking first derivative

f'(x) = 2x-10

Now the first derivative has to be put equal to zero to find the critical value

2x-10 = 0\\2x = 10\\x = \frac{10}{2} = 5

The function has only one critical value which is 5.

Taking 2nd derivative

f''(x) =2

f''(5) = 2

As the value of 2nd derivative is positive for the critical value 5, this means that the function has a minimum value at x = 5

The value can be found out by putting x=5 in the function

f(5) = (5)^2-10(5)+31\\=25-50+31\\=6

Hence,

<u>The function y = x 2 - 10x + 31 has a minimum  value of 6</u>

Hence,

Option B. minimum is correct for the first blank

Option C. 6 is correct for second blank.

8 0
3 years ago
Solve for x when 4x+16/12=x-4
stira [4]

Answer:

In short, Your Answer would be either 1 or 7

Step-by-step explanation:

|4x + 12| = 16

As it is in modulus function, it could be either +ve or -ve

4x+12 = 16   OR   4x - 12 = 16

4x = 16-12    OR   4x = 16 + 12

4x = 4           OR   4x = 28

x = 4/4     OR  x = 28/4

8 0
2 years ago
Can someone please help me with this one? Tysm! ^^
lana [24]
2/3 x 3/4 =6/12=1/2
(Multiply numerators, multiply denominators, simplify)
4 0
3 years ago
Find the area of the figure. (Sides meet at right angles.)
user100 [1]
Area is 50 m^2
5 x 3 = 15
7 x 5 = 35
35 + 15 = 50 m^2
6 0
2 years ago
Read 2 more answers
The formula to determine the asking price on a house is P=q+2n where q is the quality and n is the neighborhood. 1. Solve the eq
kotykmax [81]
1.q=p-2n
2.q=75000-2*20000
q=75000-40000
q=35000
3.p=90000+2*25000
p=90000+50000
p=140000

Hope this helps :)
8 0
3 years ago
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