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iragen [17]
3 years ago
8

Doing math watch and have no idea what to do

Mathematics
1 answer:
photoshop1234 [79]3 years ago
7 0

Answer:

A=πr^2

=3.142×11.2^2

=3.142×125.44

=394.13cm^2

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For which of the following decreasing functions f does (f−1)′(10)=−1/8
Oduvanchick [21]

Recall the inverse function theorem: if f(x) has an inverse, and if f(a) = b and a = f⁻¹(b), then

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⇒   (f⁻¹)'(b) = 1/f'(a)

Let b = 10. Then pick the function f(x) such that f(a) = 10 and f'(a) = -8 for some number a.

7 0
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A box of apples weights 1,058 pounds. If one apples weights 46 pounds, how many apples are there in the box?
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There will be23 apples in the bow
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4 years ago
Geometry question any help is appreciated!!
sladkih [1.3K]
Radius is the distance between the center and any point on the circle.
r=distance =√((x2-x1)² +(y2-y1)²) =√((5-(-3))²+(-7-(-1))²)=√(64+36)=√100 = 10
r=√100 

Equation of the circle , where (h, k) coordinates of the center of the radius.
(h,k)=(5,-7)
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4 0
3 years ago
Find a linear equation whose graph is the straight line with the given property through (0.5,7) and parallel to the line 4x-2y=1
Gre4nikov [31]
A factor of 2 can be removed from the given line to put it in standard form. Then the given point can be substituted to find the new constant.
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The equation you seek is
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7 0
3 years ago
Which linear inequality is represented by the graph
Arlecino [84]

Answer:\Large\boxed{First~choice.~y\leq \frac{1}{2}x+2 }

Step-by-step explanation:

<h2>Determine the equation form of the inequality</h2>

<u>Given function form</u>

Point-Slope form : y = mx + b

  • m = slope
  • b = y-intercept

<u>Given the information from the graph</u>

Since the graph crosses (0, 2), b = 2

<u>Find the slope</u>

<em>Choose any two points from the graph</em>

(x₁, y₁) = (0, 2)

(x₂, y₂) = (2, 3)

Slope = (y₂ - y₁) / (x₂ - x₁)

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m = 1 / 2

Therefore, the equation form of the inequality is <u>y = (1/2)x + 2</u>

<h2>Determine whether it is ≤ or ≥</h2>

Since it is a <u>solid line</u>, the values on the line are also included. Thus, it must be either greater than or equal to, or less than or equal to.

The shaded region is below the solid line, therefore, it is<u> ≤</u>

Therefore, the inequality is \Large\boxed{y\leq \frac{1}{2}x+2 }

To double-check the sign, we can substitute (0, 0) into the inequality to see whether it is true.

y ≤ (1/2) x + 2

0 ≤ (1/2) 0 + 2

0 ≤ 2              TRUE

Hope this helps!! :)

Please let me know if you have any questions

5 0
2 years ago
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