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kodGreya [7K]
3 years ago
14

Find the unknown angle

Mathematics
1 answer:
Svet_ta [14]3 years ago
5 0

Answer:

15) 54    

16) 37

Step-by-step explanation:

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What is the value of -8+4-7+9-2+(-5)
dsp73

Answer:

-9

Step-by-step explanation:

-8+4-7+9-2+(-5)

-8+4-7+9-2-5

-8-7-2-5+4+9

-22+13

-9

6 0
2 years ago
The area of a circle with a diameter of 4.275" is ___ sq in
olya-2409 [2.1K]

Answer:

Step-by-step explanation:

diameter = 4.275"

r = 4.275 ÷ 2 = 2.1375"

Area of circle = πr²

                      = 3.14 * 2.1375 * 2.1375

                      = 14.3463

                     ≈ 14.3 in²

4 0
2 years ago
A bag contains three different shaped pieces of card
algol13

Answer:

2:3:5

Step-by-step explanation:

Here, we are going to be using direct numbers from the ratio

Circles to triangles is; 2:3

So for 200 circles, there are 300 triangles

Triangles to rectangles ; 2:5

300 triangles, there are 500 rectangles

Circles to triangles to rectangles is thus;

200: 300:500

= 2:3:5

5 0
3 years ago
A correlation of r is about .92 indicates a strong, positive correlation. True or false?
SCORPION-xisa [38]
True, 0.92 is positive and an r-value of more than or equal to 0.75 will mean it is strong
5 0
3 years ago
How much does 8.20 X 10-3dm3 (1dm3 = 1L) sample of aluminum weigh in grams?<br> centimeters?
m_a_m_a [10]

Answer:

8.20 grams ; 8.20 cm³

Step-by-step explanation:

At first convert it to m³ from dm³

we know,

1 dm³ =10⁻³ m³

∴ 8.20 X 10⁻³dm3 = 8.20 X 10⁻³ x 10⁻³ m³

                              =8.20 X 10⁻⁶ m³

                             

<u>m³ to gram :</u>

1 m³ = 10⁶ grams

∴ 8.20 X 10⁻⁶ m³ = (8.20 X 10⁻⁶x10⁶) grams

                            = 8.20 grams

<u>m³ to cm³ :</u>

1m³ = 10⁶ cm³

∴8.20 X 10⁻⁶ m³ = (8.20 X 10⁻⁶ x 10⁶) cm³

                           =8.20 cm³

Note:

1 cm³ = 1 gram

7 0
3 years ago
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