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notsponge [240]
2 years ago
6

If f(x) = x2 + 7, what is the equation for f'(x)?

Mathematics
1 answer:
denis23 [38]2 years ago
6 0

Answer:

2x

Step-by-step explanation:

\bullet\ (x^2)^{\prime}=2x\\\\\bullet\ (7)^{\prime}=0

\Longrightarrow f^{\prime }\left( x\right)  =\left( x^{2}+7\right)^{\prime }  =(x^2)^{\prime}+(7)^{\prime}=2x

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Ryan measure the perimeter of his square painting so he can make a wooden frame . find the perimeter of the painting in centimet
egoroff_w [7]

Answer:

Perimeter = 122 cm or 1.22 m

Step-by-step explanation:

The complete question with image is attached.

We know the perimeter is the sum of all the sides.

Since it's already given that one side is 30.5 and we know it is a square, so perimeter would be sum of all the 4 sides [each 30.5 cm].

Perimeter = 30.5 + 30.5 + 30.5 + 30.5 = 122 cm

Also, to get the answer in meters, we need to know that 100 cm = 1 m, hence

We got to divide by 100 to get our answer in meters, so

122/100 = 1.22 meters

Hence

Perimeter = 1.22 m

6 0
3 years ago
X varies directly with y. If x is 16 when y is 20, find x when y is 80.
Taya2010 [7]

Answer:

32

Step-by-step explanation:

16/20 reduces down to 2/5

set 2/5=x/80

cross multiply 160=5x

divide 32=x

check 2/5=32/80

32/80; 16/40; 8/20; 4/10; 2/5

yay 32 is the answer good luck :)

5 0
3 years ago
Find the distance between the points (6,1) and (9,5)
Sergio [31]

square root of (9-6)^2 +(5-1)^2 = 5

 the distance is 5 units

4 0
3 years ago
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I can’t remember what distributive property is.
CaHeK987 [17]

<span> The distributive property is a special way where multiplication is applied to addition of two or more numbers in which each term inside a set of parentheses can be multiplied by a factor outside the parentheses, such as:
</span>

<span>a(b + c) = ab + ac.
</span>

Does this help in any way?
<span> </span>


4 0
3 years ago
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Which one of these grids is shaded red and blue in the ratio 5 : 7?
trasher [3.6K]

Answer:

E

Step-by-step explanation:

there are 5 red boxes and 7 blue boxes

8 0
3 years ago
Read 2 more answers
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