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MArishka [77]
3 years ago
7

Increase 12 1/2 cm by 25 mm

Mathematics
1 answer:
AURORKA [14]3 years ago
8 0
25mm is the same as 2.5cm.

12+2
14

0.5+0.5
1

14+1
15

12 1/2cm + 25mm = 15cm
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Stanley is dividing 7 cookies so he can eat little pieces throughout the day. He wants to divide each cookie into 1/4 . How many
Licemer1 [7]

Answer:

28

Step-by-step explanation:

Draw 7 round cookies and divide each into fourths.

7 cookies cut into fourths groves you 7*4=28 pieces of cookie.

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4 years ago
In ΔJKL, the measure of ∠L=90°, KL = 11 feet, and JK = 32 feet. Find the measure of ∠J to the nearest tenth of a degree.
Lady bird [3.3K]

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sin J = hypotenuse/opposite = 11/32

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4 0
3 years ago
Consider the line y=7x-3 fine the equation that pass through -5,6 of a perpendicular​
Pavel [41]

Answer:

y=-\frac{1}{7}x+\frac{37}{7}

Step-by-step explanation:

Your equation is in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.  Your line has a slope of 7.  In order to find the line perpendicular to this line, we have to take the opposite reciprocal of the slope.  The perpendicular slope to m = 7 is m = -1/7.  Now we go through x = -5 and y = 6 to find the new equation.

6 = -1/7(-5) + b gives us

6 = 5/7 + b and

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Therefore, the equation of the line perpendicular to your original line is

y = -\frac{1}{7}x + \frac{37}{7}

5 0
3 years ago
What is the length of ?<br><br> 3 ft<br> 4 ft<br> 9 ft<br> 18 ft
zmey [24]
Answer:
AC = 18 ft

Explanation:
There is a geometric theorem that states that:
" In a triangle, the line joining two midpoints of two sides is parallel to the third side and equals have its length"

Now, let's check the given triangle:
M is the midpoint of AB
N is the midpoint of BC

Based on the above theorem:
MN will be parallel to AC
and
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We are given that:
length of MN = 9 ft
Therefore:
9 = (1/2) * length of AC
length of AC = 2 * 9 = 18 ft

Hope this jhelps :)
6 0
3 years ago
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The height of a doorway is 7 yards. What is the height of the doorway in inches?
sineoko [7]
The height of the doorway is 252 inches
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