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3 years ago

2^2 + 4 (5) - 7 x 2 =

Mathematics

1 answer:

PIT_PIT [208]3 years ago

4 0

The answer for your question is 10

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Please help im very confused on this question

garri49 [273]

Answer:

Step-by-step explanation:

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3 years ago

Given the measures of the sides of a triangle below, which set could form a right

scoray [572]

B.

(9)^2 + (12)^2 = 225

Square root of 225 gives you 15 !!

We found it by applying Pythagorean’s theorem which only applies to right triangles.

Hope it help !!

6 0

3 years ago

Question 5 of 10

boyakko [2]

Answer:

Step-by-step explanation:

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3 years ago

Georgetown passed an ordinance that requires a 5-cent water-bottle tax to be charged for every bottle of

professor190 [17]

Answer:

c,13

Step-by-step explanation:

Cause if you divide 65 by 5 you get 13. And to check it you can multiply 13 times 5 and you would still get 65. And can I get your g-mail

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3 years ago

Harry is trying to solve the equation y = 2x2 − x − 6 using the quadratic formula. He has made an error in one of the steps belo

professor190 [17]

Answer:

Step 2

Step-by-step explanation:

The quadratic formula is given by $x=-b+-\frac{\sqrt{b^{2}-4ac } }{2a}$

Our equation is y = 2x²-x-6

So here our a = 2, b = -1, and c = -6

We can now plug these numbers into our formula

$x= -(-1) +-\frac{\sqrt{(-1)^{2}-4(2)(-6) } }{2(2)} = 1 +-\frac{\sqrt{1+24} }{4} = 1+-\frac{\sqrt{25} }{4}$

Step 2 is incorrect because it states that "x equals the negative of negative 1 plus or minus the square root of negative one plus forty-eight all over two times 2."

The correct statement would be "x equals the negative of negative 1 plus or minus the square root of positive one plus forty-eight all over two times 2.", because the square of a negative is positive, resulting in a positive one.

Since this step is incorrect, the steps after are also incorrect, but Harry went wrong at Step 2

4 0

3 years ago