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Volgvan
3 years ago
5

Need help! Can anyone please help me? It would be much appreciated. Please view the attached photo. Will mark as brainliest!

Mathematics
1 answer:
seraphim [82]3 years ago
6 0

Answer:

  B)  0.0073 mm/s

Step-by-step explanation:

The rate of change of area is the product of the circumference and the rate of change of radius:

  dA/dt = C·dr/dt

  dr/dt = (dA/dt)/C

Of course, C = 2πr, so ...

  dr/dt = (7 mm²/s)(2π·152 mm) ≈ 7/955.04 mm/s ≈ 0.0073 mm/s

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Help me with it plizz
Liono4ka [1.6K]
2x + 9 = -65
2x = -65 - 9
2x = -74
x = -74/2
x = -37

So, your final answer is -37

Hope this helps!

3 0
2 years ago
Can someone help me with these both
Anna [14]
Hello,
so all you have to do is match the abbreviations to the triangles. The abbreviations stand for what is the SAME in both triangles, denoted by similar markings on equal sides and angles.

Abbreviations:
SSS = Side-Side-Side
SAS = Side-Angle-Side
ASA = Angle-Side-Angle
AAS = Angle-Angle-Side
HL = Hypotenuse-Leg

* Note - the angle side angle must go around the triangle in that order. ASA has the side BETWEEN the congruent angles.. SSA does NOT work.

(9.) ASA
(10.) AAS
(11.) SSS
(12.) No way to tell if congruent. (only 3 angles no side)
(13.) ASA
(14.) SAS
(15.) HL

7 0
3 years ago
Which of the following options have the same value as 8\%8%8, percent of 949494?
mr Goodwill [35]

Answer:

A&D

Step-by-step explanation:

8% of something is the same thing as 8% times that. If we use that, we get the answers A and D

5 0
1 year ago
Casey's sister is 3 times as old as he is. His sister is 21 years old. Let c represent Casey's age. Which of the following would
algol13

Answer:

casey's age is 7

Step-by-step explanation:

if his sister is 3 times as old as he is then she is older therefore you would devide.

21/3=7

5 0
3 years ago
Read 2 more answers
18 science club members have birthdays in the summer. This is 20% of the birthdays in the club. How many club members are there?
swat32
18 * 5 = 90
90 represents 100%, because there are 5 20% in 100%

In total there are 90 club members
80% = 71 do not have birthdays in the summer.
8 0
3 years ago
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