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NeTakaya
3 years ago
5

Can someone help maths

Mathematics
1 answer:
Mamont248 [21]3 years ago
4 0
First find angle EBC. 
The are for a triangle is 180 degrees.
It is a right triangle and has a right angle.
180 - (90 + 50)
180 - 140
angle EBC IS 40
NOW FIND X
The line is 180 degrees.
180 -40 = 140
X = 140 DEGREES
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The table below shows the cube roots of different numbers
siniylev [52]
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f ( x ) = ∛ x   ( or : y = ∛x  )
Part B : f ( x ) = 10 + 20 x
f ( 100 ) = 10 + 20 · 100 = 10 + 2,000 = 2,010
f ( 100 ) represents the total cost for renting a bike for 100 hours.
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3 years ago
Determining Whether a Point Lies on a Circle
Softa [21]

Answer:

No

Step-by-step explanation:

If the center is at (0, 0) and if (0, -9) lies on the circle, then the radius must be 9.

In this case, the equation of this circle is

x^2 + y^2 = r^2 = 9^2.

Does (8, 717) satisfy this equation?  No.  717^2 would be far outside of the circle.  the distance from the center to the point  (8, 17) is not the same as the radius

6 0
3 years ago
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My car gets 27 miles per gallon, and gasoline costs $2.50 per gallon. If we consider only the cost of gasoline, how much does it
Andrew [12]

Answer:

$71.50

  • Step-by-step explanation:
  • 27 times 2.50 equals 71.50

5 0
3 years ago
If 4700 bricks each of size 25 cm x 16 cm x 10 cm are required to construct a wall
Rzqust [24]

Answer:

970 cm

Step-by-step explanation:

Given that:

Size of brick :

25cm × 16cm × 10cm

Number of bricks = 4700

Dimension of wall = 20 m long × 20 cm wide

Let the height = h

Hence, dimension of wall (length and height)

2000 cm × h

Dimension of window = 2m × 1.5m = 200cm × 150cm

Number of windows = 2

Total area covered by windows = 2 * (L * B)

= 2(200 * 150) = 60,000cm

Brick = (25 * 16) * 4700 = 1, 880, 000 cm ( length and height)

Wall = 2000 * height - 60,000 = 1880000

2000height - 60,000 = 1880000

2000height = 1880000 + 60,000

2000height = 1940000

Height = 1940000 / 2000

Height of wall = 970 cm

6 0
3 years ago
PLEASE HELP !!!!!!!!!!!!!!
nekit [7.7K]

Answer:

reflection and translation

6 0
3 years ago
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