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horsena [70]
2 years ago
13

Please help on this question. No links

Mathematics
1 answer:
Dmitrij [34]2 years ago
6 0

Answer:

137

Step-by-step explanation:

m∠B and m∠C are adjacent angles in a parallelogram.

Sum of adjacent angles in a parallelogram is 180.

m∠B + m∠C = 180

43 + m∠C = 180

m∠C = 180 - 43

m∠C = 137

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Nolan rides his bike 63 miles in 270 minutes. What is his average speed in miles per hour?
s2008m [1.1K]
63 miles in 270 minutes will mean that nolan rides his bike at a distance of 63/270 miles in one minute.
there are 60 minutes in an hour. So to find out the distance he covers in 1 hour, 63/270 × 60 will give you 14 miles.
Since the question is asking for the average speed, nolan rides his bike at 14 miles per hour i think.
4 0
3 years ago
3. State if each statement is correct. If it is not correct, then fix the mistake.
olya-2409 [2.1K]

Answer:

All are incorrect

Step-by-step explanation:

Required

Determine which is correct or not

(a)\ 2x * 2x = 4x

This is incorrect because:

2x * 2x = 2 * 2 * x*x

2x * 2x = 4x^2 ---- fixed

(b)\ 3x^3 * 3x^3 = 9x^9

This is incorrect because:

3x^3 * 3x^3 = 3 * 3 * x^3 * x^3

3x^3 * 3x^3 = 9x^(3+3)

3x^3 * 3x^3 = 9x^6 ---- fixed

(c)\ 4x(4x + 5) =8x + 5

This is incorrect because:

4x(4x + 5) =4x * 4x + 4x * 5

4x(4x + 5) =16x^2 + 20x ---- fixed

4 0
3 years ago
In a pair of similar polygons, corresponding angles are congruent.
SashulF [63]
<span>The correct answer would be option C. Similar polygons
Similar polygons are polygons wherein the corresponding angles are congruent and the corresponding sides are proportional with each other. Thus, having a pair of similar polygons would mean that its corresponding angles would always be congruent.</span>
3 0
4 years ago
Read 2 more answers
The grade of a road is the ratio of its rise to its run and is usually given as a decimal or percent. Find the angle that this r
Andru [333]

Answer:

the angle would be 1/2 i did this problem before and got it correct

Step-by-step explanation:

3 0
3 years ago
Q19. Four positive whole numbers add up to 36
MAXImum [283]

Answer:

Step-by-step explanation:

let the numbers be 7x,y,y,y.

7x+3y=36

3y=36-7x

y=\frac{36-7x}{3} \\let~x=3\\y=\frac{36-7 \times 3}{3} =\frac{15}{3} =5\\

numbers are 7×3,5,5,5

or 21,5,5,5

21×5×5×5=2625

7 0
3 years ago
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