MATHEMATICS MIDDLE SCHOOL

Choose 3 of the following that are NOT equivalent to the expression below 1/2✖️7


A.) 1✖️7➗2
B.) 1
➖
2✖️7
C.)1✖️7✖️2
D.)1✖️7
➖
2
E.) 14

Answers

Answer 1
Answer: Well, 1/2*7=3.5. So you have to do each equation to see which ones are not equal to 3.5. A) 1*7=7/2=3.5 so A is not the right answer. B) 1/2*7=1/14=.07, so B is one of the correct answers. C) 1*7=7*2=14, so C is another one of the correct answers. D) 1*7/2=7/2=3.5, so D is not a correct answer. E) 14 is not equal to 3.5, so E is another correct answer. So the correct answers are B, C, and E.
Answer 2
Answer: B, C, and D are incorrect.

Hope this helps :)

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Factor (3x+2)(3x^2-6x+4)​

Answers

Answer:

(3x+2)(3x-2)(x-2)

Step-by-step explanation:

1. you do trinomial factoring for the second factor (the one with three terms)

2. you put a 3x in one parentheses and an x in the other and find all the numbers that make positive 4.

3. Now foil (first,outside,inside,last) and see which ones match the factor above

4. You should be left with three factors at the end.

Make r the subject of the formula: V=πr²h

Answers

This is called a literal equation, or an equation with multiple variables. You solve it the same as you solve any other equation, but the variables stay there the whole time.

If they want "r" to be the subject, then they want you to solve for r. This means that you need to get the variable r by itself on one side of the equation, but still have the equation be equivalent to it original form.

     I'm going to show you, in steps, how to solve this problem:

V=πr²h

Divide both sides by "π²h"
V/π²h=(πr²h)/π²h

V/(π²h)=r

Your answer is r=V/π²h

Write
0.28
as a fraction in simplest form.

Answers

7/25

First thing you want to do is put it over 100

28/100

Now divide by 4

28÷4=7

100÷4=25
28/100=14/50=7/25 the last fraction is the correct answer

Given f(x) = x -2, if the domain is 5, find the range

Answers

Answer:

Domain: all real numbers

Range: all real numbers

Step-by-step explanation:

There is no restriction on the variable x, so the domain is all reals.

Similarly, the range is all reals as the graph of this function is a line that is neither vertical nor horizontal.

How do you put 8/100 ,3/5 ,7/10 from least to greatest

Answers

From least to Greatest: 8/100, 7/10, 3/5
you can do it like this 3/5 7/10 8/100

Megan has $45.12 in her purse. She spends $7.89 for lunch and $21.25 for a pair of sunglasses. Which is the best estimate for the amount of money Megan has left?Responses




$12


$16




$20




$24

Answers

Answer: To find the best estimate for the amount of money Megan has left, we need to subtract the amount she spent from the initial amount she had. Megan started with $45.12, and she spent $7.89 for lunch and $21.25 for sunglasses.

First, let's subtract $7.89 from $45.12:

$45.12 - $7.89 = $37.23

Next, let's subtract $21.25 from $37.23:

$37.23 - $21.25 = $15.98

So, the best estimate for the amount of money Megan has left is $15.98.

Out of the given options, the closest estimate to $15.98 is $16. Therefore, the correct answer is $16.

Answer:

$16

If this helped you let me know so I will know to keep helping. If not, I will improve and make sure my work is correct. Have a nice day!
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