3 years ago

What is. 8x + 5 = 6x +9

Mathematics

2 answers:

Sholpan [36]3 years ago

6 0

Answer:

-7

Step-by-step explanation:

you beed to subtrace 7 from both sides

morpeh [17]3 years ago

5 0

Answer:it's 2 according to my method

Step-by-step explanation:

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Convert the following quantities to the indicated units. 57 miles per hour to meters per second

vichka [17]

Answer:

25.481

Step-by-step explanation:

divide by 2.237

8 0

3 years ago

Prove algebraically that (m + 2)2 – m 2 – 12 is always a multiple of 4

Julli [10]

Answer:

$(m + 2)^{2} - m^{2} - 12 = 4(m - 2)$

Step-by-step explanation:

Step 1:

Write the expression

$(m+2)^{2} - m^{2} - 12$

Step 2: Expand $(m + 2)^{2}$

$(m+2)^{2} - m^{2} - 12\\(m+2)(m+2) - m^{2} - 12\\m^{2} + 2m + 2m + 4 - m^{2} - 12$

Step 3: Collect similar terms

$m^{2} - m^{2} + 4m + 4 - 12\\4m - 8$

Step 4: Factor 4 out of the expression to prove that the expression is a multiple of 4.

$Therefore\\4m - 8 = 4(m - 2)\\Hence,\\(m+2)^{2} - m^{2} - 12 is a multiply of 4 because the expression is equal to 4(m-2)$

3 0

2 years ago

In the expression 2m-5, which is the coefficient ?

m_a_m_a [10]

Answer:

Step-by-step explanation:

It is the number before the variable (m).

6 0

1 year ago

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Please help! I need help with part B if 1000 students were surveyed what would the probability be of how many plays sports?

nevsk [136]

Answer:

188 students would play sports, out of 1,000.

Step-by-step explanation:

If the probability that a random high school student plays a sport is 0.188 (150/800), which means for every 1 high school student 0.188 of them play a sport. Multiply 0.188x1,000 to get 188 students who play a sport.

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3 years ago

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A collector of scale model of ships wants to know the length of a 1/69 scale model of a ship that was 207 feet in length. Find t

Tresset [83]

I think 3 because if u divide 207 by 69 you get 3

4 0

3 years ago