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posledela
3 years ago
15

Can someone please help me with this:) ​

Mathematics
1 answer:
madam [21]3 years ago
3 0

Answer:  c

Step-by-step explanation:

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How do I find area of a circle if they only give me the diameter
disa [49]

Answer:

divide the diameter by 2

Step-by-step explanation:

the equation for the area of a circle is Pi times the radius squared. the radius is half the diameter, so if you need to find the area of the circle, just divide the diameter by 2 and you will have the length of the radius. then, jut plug it in to the equation.

7 0
3 years ago
Read 2 more answers
The angle measurements in the diagram are represented by the following expression
saul85 [17]

Answer:

  1. A=B(alternate angle r equal)
  2. 8x-10=3x+90
  3. 8x-3x=90+10
  4. 5x=100
  5. x=100/5
  6. x=20

hope it helps.

8 0
2 years ago
Please can someone help thank you
aleksley [76]

Answer:

3:1

Step-by-step explanation:

240 necklaces in one month

180-sold on website

60- sold in shop

180:60

then you would simplify

so the final answer is 3:1

5 0
3 years ago
Does anyone know what b is?
sveticcg [70]

Answer: b = 17

Step-by-step explanation: The figure shows a triangle which upon closer observation is actually two triangles placed one inside the other. We have triangle QTR (the larger one) and triangle PTS (the smaller one).

The line PS is parallel to line QR, so in effect what we have here are two similar triangles. The ratios of similarity can be derived as

Line QT/line TR = line PT/line TS OR

Line QT/line QR = line PT/line PS.

With these ratios in mind we can now write the following expressions from the similar triangles;

QT = 2b + (2b - 17) and

TR = 16 + 8

TR = 24

Hence,

2b/16 = 2b + (2b - 17)/24

(That is, PT/TS = QT/TR)

2b/16 = (4b - 17)/24

By cross multiplication we now have,

2b(24) = 16(4b - 17)

By expanding the brackets we now have

48b = 64b - 272

By collecting like terms, 64b now moves to the left side of the equation and becomes negative

48b - 64b = -272

-16b = -272

Divide both sides of the equation by -16

b = 17

**Note** A negative number divided by another negative number yields a positive answer.

7 0
3 years ago
Write 149,597,870,700 in scientific notation with 3 significant figures
Lynna [10]

Answer:

1.50 x 10^11.

Step-by-step explanation:

There 11 digits after the 1 so it is:

1.50 x 10^11.

(1495  to 3 s. f. is 150)

8 0
2 years ago
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