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zzz [600]
3 years ago
5

Find the surface area of the composite figure. 12 cm 11 cm 5 cm 4 cm 7 cm 3 cm 4 cm 12 cm SA=[ ? ] cm^ 2​

Mathematics
1 answer:
salantis [7]3 years ago
4 0

Answer:116cm2

2(12+11+5+7+3+4+4+12)

Step-by-step explanation:

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Quadrilateral A has side lengths 2, 3, 5, and 6. Quadrilateral B has side lengths 4, 5, 8,
Dahasolnce [82]

Answer:

No.

Step-by-step explanation:

2, 3, 5, 6

4, 5, 8, 10

If all of the sides are scaled, that must mean it is possible to maintain a ratio of each side.

2/4 = 0.5

3/5 = 0.6

5/8 = ?

6/10 = 0.6

No.

6 0
4 years ago
Find sin0 where 0 is the angle shown. Give an exact value, not a decimal approximation.​
otez555 [7]

Answer: Sin0 = 8/8.5

Step-by-step explanation: What we have is a right angled triangle, with two sides given and one angle which is the reference angle (unknown angle).

The Sine of the angle is calculated as

Sin0 = opposite/hypotenuse

We have the opposite side (facing the reference angle) as 8 units and the hypotenuse (facing the right angle unknown), which we shall label as X.

To calculate the hypotenuse, we shall apply the Pythagoras theorem which is,

X² = 3² + 8²

X² = 9 + 64

X² = 73

Adding the square root sign to both sides of the equation, we now have

X = √73

X = 8.5 (approximately)

Now that we have the hypotenuse as 8.5, the Sine of the angle can now be calculated as

Sin0 = opposite/hypotenuse

Sin0 = 8/8.5

7 0
3 years ago
What is the remainder of (2x3 − 18x + 5) ÷ (x − 3)?
professor190 [17]
The remainder is five. heres the proof.

7 0
3 years ago
Read 2 more answers
Solve for the value of K
postnew [5]

Answer:

k = 5

Step-by-step explanation:

The straight angle is 180º

The right angle is 90º

Therefor

(8k + 1) + 90 + 49 = 180

combine like terms

8k + 140 = 180

Subtract 140 from both sides

8k = 40

Divide both sides by 8

k = 5

4 0
3 years ago
Read 2 more answers
If $45 is divided into the ratio 4:5 the smaller part is A. $1.50 B.$3.50 C.$4.50 D.$24.50​ Asap
TiliK225 [7]

Answer:

Step-by-step explanation:

When you do 45 divided by 9 you get 5.

                         45 / 9 = 5

     To figure out what the smaller number (in this the 4) equals,

  you have to do 4 times 9 to get 36.

                    4 * 9 = 36

So your answer is 36.

3 0
3 years ago
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