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Lunna [17]
3 years ago
14

SOMEONE PLEASE PLEASE HELP!!!!​

Mathematics
2 answers:
Kay [80]3 years ago
8 0

Answer: 49 √3 or 84.87049

Step-by-step explanation:

VashaNatasha [74]3 years ago
4 0

Answer:

49\sqrt{21}

Step-by-step explanation:

You multiply the two sevens to get the 49, and the square root of three has to be multiplied as well

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A. x+x+x+3x+3x=9<br> B. x+x+x+x+x=18<br> C. x+x+x+3x+3x=18<br> D. 9x^5=18
lisov135 [29]

9514 1404 393

Answer:

  a)  C  x +x +x +3x +3x = 18

  b)  x = 2

  c)  2 cm, 6 cm

Step-by-step explanation:

a) The sum of the lengths of the sides is equal to the length of the perimeter. The appropriate equation is ...

 x +x +x +3x +3x = 18

__

b) Simplifying, the equation becomes ...

  9x = 18

  x = 2 . . . . . divide by 9

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c) The shorter sides are x = 2 cm.

The longer sides are 3x = 6 cm.

6 0
3 years ago
Will mark brainliest<br> 2+2-1=x
erik [133]

Answer:

2+2 is 4 minus 1 is 3 quick math

Step-by-step explanation:

x=3

7 0
3 years ago
Read 2 more answers
The area of the trapezoid is 40 square units.
Whitepunk [10]

Answer:

5 units

Step-by-step explanation:

Image of the trapezoid is attached.

To find the height of the trapezoid (image attached), let's take the formula for area of a trapezoid.

The formula for area of a trapezoid is:

A = (\frac{a + b}{2}) h

Here, a and b represents the bases of the trapezoid.

a = 6

b = 10

h which represents height is unknown.

A = 40

Substitute figures:

40 = (\frac{6 + 10}{2}) h

40 = (\frac{16}{2}) h

40 = 8 * h

Solve for h:

h = \frac{40}{8}

h = 5

The height of the trapezoid is 5 units

4 0
3 years ago
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ASAP what is the value of k?<br> -3(k+7) - 5k+4=23
Maru [420]

Answer:

k=−5

Step-by-step explanation:

−3(k+7)−5k+4=23

(−3)(k)+(−3)(7)+−5k+4=23(Distribute)

−3k+−21+−5k+4=23

(−3k+−5k)+(−21+4)=23(Combine Like Terms)

−8k+−17=23

−8k−17=23

Step 2: Add 17 to both sides.

−8k−17+17=23+17

−8k=40

Step 3: Divide both sides by -8.

−8k

−8

=

40

−8

k=−5

Answer:

k=−5

 

6 0
2 years ago
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Stephanie is going to contribute $300 on the first of each month, starting today, to her retirement account. Her employer will p
gayaneshka [121]

Answer:

2.123.007

Step-by-step explanation:

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3 years ago
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