If x = -2, then x 2 - 7x + 10 equals

A) 0
B) 20
C) 28

Answers

Answer 1

Answer:

Answer: OPTION C

Step-by-step explanation:

Given the quadratic equation $x^2 - 7x + 10$ and the value of the variable "x" $x = -2$ , you need to substitute the given value of the variable. Then:

$=(-2)^2 - 7(-2) + 10$

And finally, you need to evaluate.

Remember the multiplication of signs:

$(+)(+)=+\n(-)(-)=+\n(-)(+)=-$

Therefore, you get the following result:

$=4+14 + 10$

$=28$

This matches with the option C.

Answer 2

Answer: I think the answer is b

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Can the sum of two mixed numbers be equal to 2?Explain why or why not.

Answers

No, b/c to be a mixed number your value must be greater than one

Two fifths of the fish in grays fish tank are guppies. One fourth of the guppies are red. What fraction of the fish in grays tank are red guppies?

Answers

it would be one fourth cause he tells you the fraction of how many guppies are red

I think it goes like this:
1/4 of 2/5= 2/20 or 1/10

It's asking what fraction are red guppies and it's telling us that 2/5 of the tank is made up of guppies and out of that 2/5, 1/4 of them are red. So you would have to figure out what 1/4 of 2/5 is to find out how many red guppies there are.

Use an inch ruler, What is the length to the nearest inch

Answers

5 milimeters is the answe

What rotation was applied to triangle DEF to create triangle D’E’F’A. 90° clockwise
B. 180°
C. None of the above
D. 90° counterclockwise

Answers

The answer to the rotation of triangle def is B)

Answer:

B. 180°

Step-by-step explanation:

To create triangle D'E'F', you need to rotate triangle DEF 180°, which results a figure with an opposite position, like a mirror. A 180° rotation always gives an opposite position, a mirror effect.

How do you subtract 9 2/6 - 6 5/6

Answers

The result of subtraction of 9 2/6 - 6 5/6 is: 2 1/2.

Here, we have,

To subtract mixed numbers like 9 2/6 and 6 5/6, you can follow these steps:

Step 1: Convert the mixed numbers into improper fractions.

9 2/6 can be written as 9 + 2/6 = 9 + 1/3 = 27/3 + 1/3 = 28/3.

6 5/6 can be written as 6 + 5/6 = 6 + 5/6 = 36/6 + 5/6 = 41/6.

Step 2: Subtract the two fractions.

28/3 - 41/6 = (28 * 2)/(3 * 2) - 41/6 = 56/6 - 41/6 = 15/6.

Step 3: Simplify the resulting fraction, if possible.

15/6 can be simplified by dividing both the numerator and denominator by their greatest common divisor, which is 3.

15/6 = (15/3) / (6/3) = 5/2.

Therefore, 9 2/6 - 6 5/6 is equal to 5/2 or 2 1/2.

To learn more on subtraction click:

brainly.com/question/2346316

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Well, first you would multiply the full number ( 9 and 6) by the denominator of the fraction (9*6 and 6*6). you would get 54 and add it to the numerator of the fraction getting 56/6 and 41/6. You would then subtract the 2 numerators from each other getting 15/6. Finally you would simplify the number to get 2 and 1/2 (3/6)

Simplify negative three fifths times m times quantity negative two sevenths times m minus one fourth end quantity.6 over 35 times m squared plus 3 over 20 times m
negative 6 over 35 times m squared minus 3 over 20 times m
6 over 35 times m squared plus one fourth
negative 6 over 35 times m squared plus 3 over 20 times m