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Rasek [7]
3 years ago
8

Please help me with problem 22a I dont understand how to find the rate of change

Mathematics
1 answer:
Anna [14]3 years ago
5 0
The rate of change is x2. So, since it's forty, it became 80 because 40x2=80!
         Good luck for a good grade!
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The following is the formula to find the area of a circle. Which shows the formula correctly solved for the radius (r) in terms
Otrada [13]

Answer:

C

Step-by-step explanation:

This has to be C because you need to divide pi from r squared bc they r multiplied. Then you get a/pi = r squared. You need to find the square root of a/pi. So r equals square root a/pi.

4 0
3 years ago
Find the area of shaded portions in figures.​
sertanlavr [38]

Answer:

360cm²

Step-by-step explanation:

area of the parallelogram = base x height

base = 40 -10= 30cm

height = height of the triangle

A = 30*12= 360

6 0
3 years ago
Which of the following statements must be true about this diagram ? check ALL that apply
Zanzabum

Answer:

<h2>          Check A, B and D </h2>

Step-by-step explanation:

A. m∠4 = 180° - m∠3

   m∠1 = 180° - (m∠3 + m∠2)

  m∠3 < m∠3 + m∠2  ⇒  m∠4 >m∠1

B. m∠4 = 180° - m∠3

   m∠2 = 180° - (m∠3 + m∠1)

  m∠3 < m∠3 + m∠1  ⇒  m∠4 >m∠2

C. Not necessarily {could be but not always}

D.   m∠4 = 180° - m∠3

m∠1 + m∠2 + m∠3 = 180°  ⇒  m∠1 + m∠2 = 180° - m∠3 = m∠4

E.  m∠3 = m∠1 + m∠2  only if m∠3 = 90°

F.  Not necessarily. {Could be but also could not be. In the picture is, but we don't know if the diagram is accurate or just approximate.}

3 0
3 years ago
Work out the surface area of the solid cuboid<br> L=5cm<br> W=2cm<br> H=5.3cm
Ludmilka [50]

Answer:

A = 94.2 cm²

Step-by-step explanation:

Given that,

Length, l = 5 cm

Width, b = 2 cm

Height, h = 5.3 cm

We need to find the surface area of the solid cuboid.

The formula for the surface area of the sold cubiod is given by :

A = 2(lb+bh+hl)

Substitute the values in the above formu;a

A = 2(5(2)+2(5.3)+(5.3)(5))

= 2(10+10.6+26.5)

= 2(47.1)

= 94.2 cm²

Hence, the required surface area is 94.2 cm².

3 0
3 years ago
The graphs below have the same shape. What is the equation of the blue<br> graph?
valentina_108 [34]
It would be A since in the equation (x+4)^2-2 the plus 4 means horizontal shift to the left and -2 means vertical shift down 2
4 0
3 years ago
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