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Ann [662]
2 years ago
11

Please Help Answer Question

Mathematics
1 answer:
CaHeK987 [17]2 years ago
7 0

Answer:

Step-by-step explanation:

تازە کات تەواو بوو

مەگەر بۆ ١/٦

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Solve the quadratic equation (2x+5)(2x-5)
mote1985 [20]
If you want to multiply (2*x + 5) and (2*x - 5), you can do this using the following steps:

(2*x + 5) * (2*x - 5) = 4*x^2 - 10*x + 10*x - 25 = 4*x^2 - 25

The correct result is 4*x^2 - 25.
4 0
3 years ago
N is a positive integer.Explain why n(n-1) must be an even number.
V125BC [204]

Answer:

n and (n - 1) are consecutive integers.

Step-by-step explanation:

We are given 'n', a positive integer.

This 'n' can either be odd or even.

Case I:

When 'n' is odd

The n - 1 is even.

Note that the product of odd and even is always even. That is the product of n and (n - 1) is even.

Case II:

when 'n' is even

Then n - 1 is odd.

Again, using the similar logic we can say that the product of n and n - 1 should be even because here, 'n - 1' is even and 'n' is odd.

4 0
3 years ago
Solve the inequality 47.75 + x < 50 to determine how much more weight can be added to Li's suitcase without going
ehidna [41]

Answer:

Answer Choice A

Step-by-step explanation:

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8 0
3 years ago
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Wes rode his bike 30 miles in 3 hours. What was his average rate of speed? 0.3 mph 10 ​mph​ 30 ​mph​ 90 ​mph​
lidiya [134]

The answer is 10mph because you divide 30 by 3hours. I hope this helps. Could I possibly get brainliest?

3 0
3 years ago
Read 2 more answers
What is HB? Triangle Mid-segment Theorem
Scorpion4ik [409]

Answer:

HB = 13

Step-by-step explanation:

In triangle GHJ, points A, B, C are mid points of the sides GH, HJ, GJ respectively.

Therefore by Mid-segment Theorem.

AC = \frac{1}{2}  HJ \\  \\ 3y - 5 =  \frac{1}{2} (4y + 2) \\  \\  3y - 5 =  \frac{1}{2} \times 2 (2y + 1) \\  \\  3y - 5 =  2y + 1\\  \\ 3y - 2y = 5 + 1 \\  \\ y = 6 \\  \\ HJ = 4y + 2  \\  \\  HJ = 4 \times 6 + 2  \\  \\ HJ = 24 + 2  \\  \\ HJ = 26  \\  \\ HB= \frac{1}{2}  HJ \\  \\ HB= \frac{1}{2}   \times 26 \\  \\ \huge \red{ \boxed{ HB= 13}}

7 0
3 years ago
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