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2 years ago

MATH PLEASE

Mathematics

2 answers:

Pie2 years ago

8 0

Answer:

I would say A lmk if im wrong.

Step-by-step explanation:

OleMash [197]2 years ago

8 0

Answer: A

Step-by-step explanation: You can use the pythagorean theorom to figure this one out. For all right traingles the sum of one of the smallest sides squared plus the sum of the other smallest side squared equal the biggest side squared or a^2+b^2=c^2. Which ever one of these doesnt fit the equation isnt a right traingle. 5^2+9^2=106, 11^2=121 106 $\neq$ 121.

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Help!!

Elza [17]

Answer:

$(b)\ 2x - 9 = -1$

$(c)\ -2x + 12 = 4$

$(e)\ 2(x - 10) = -12$

Step-by-step explanation:

Required

Which equals $x = 4$

$(a)\ 2x + 6 = 2$

Collect like terms

$2x = 2 - 6$

$2x = -4$

Divide both sides by 2

$x = -2$

$(b)\ 2x - 9 = -1$

Collect like terms

$2x = -1 + 9$

$2x = 8$

Divide both sides by 2

$x = 4$

$(c)\ -2x + 12 = 4$

Collect like terms

$-2x =- 12 + 4$

$-2x =-8$

Divide both sides by -2

$x = 4$

$(d)\ 2(x + 2) = 10$

Divide both sides by 2

$x + 2 =5$

Collect like terms

$x = 5-2$

$x = 3$

$(e)\ 2(x - 10) = -12$

Divide both sides by 2

$x - 10 = -6$

Collect like terms

$x = 10 - 6$

$x = 4$

Hence, the equations with the required solution are:

$(b)\ 2x - 9 = -1$

$(c)\ -2x + 12 = 4$

$(e)\ 2(x - 10) = -12$

3 0

2 years ago

Simplify (2n + 5) - (3n + 7) + (4n - 9).<br> -3n - 11<br> 3n - 11<br> -3n + 11<br> 3n + 11

Natasha2012 [34]

Answer:

(B) 3n - 11

Step-by-step explanation:

(2n + 5) - (3n + 7) + (4n - 9) = 2n + 5 - 3n - 7 +4n - 9 = 3n - 11

3 0

2 years ago

You are to take a multiple-choice exam consisting of 100 questions with 5 possible responses to each question. Suppose that you

xeze [42]

Answer:

Step-by-step explanation:

This is a binomial distribution

n = 100; p = 1/5

E(x) = np = (100)(1/5) = 20

6 0

2 years ago

What to partial products would you add to find 513 x 46

34kurt

513 * 40 + 513 * 6= 2052 + 3078 = 5130

8 0

2 years ago

I don't want to fail

Over [174]

Answer:

Neither do I ...

but I have my AP test for AP Human Geography on Tuesday and I'm on Brainly helping people with their work instead of studying, so I have a feeling I'm not going to do very well. : /

7 0

2 years ago