MATHEMATICS MIDDLE SCHOOL

I need to finish these so I don't fail, help me out

Answers

Answer 1

Answer:

Answer:

y < -2x - 4

Step-by-step explanation:

This is a guessing game. You just have to plug and chugg to find your answer.

Look at the table they gave you and plug in the x and y value into the given equations and see if they're true or not.

For example, I used the point x=-2 and y=1 from the table.

I plug that into y < -2x - 4 and got a false statement:

y < -2x - 4

(1) < -2(-2) - 4

1 < 4 - 4

1 < 0

this is false because one cannot be less than zero. Therefore this equation is the wrong one.

If you tried to plug in x=-2 and y=1 into the other 3 equations you'll see that they'll be correct.

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Write an equation in point-slope form for the Line through the given point with the given slope.(3,-8); m= -0.24

the equation is y-y1 =m (x,x1)

Answers

y-(-8)=-0.24(x-3)
y+8=-0.24(x-3)

Is 3 to the 100th power divided by 3 to the 99th power greater than, less than, or equal to 3?

Answers

$(3^(100) )/(3^(99) )$ ? 3

whenever you divide 2 numbers that are the same and they both have exponent, you basically subract the 2 exponents from each other.

$( 3^(100))/( 3^(99)) = 3^(100-99) = 3^(1) =3$

the answer is $( 3^(100))/( 3^(99))=3$

I dont think I would know that one. Lol It did not make much sense.

What is the average rate of change of f(x)=1/4x^2-4 over the interval from 0 to 3?

Answers

Answer:

1/4

Step-by-step explanation:

To find the average rate of change we find

f(3) -f(0)

----------

3-0

We need to find f(3) = 1/4 (3)^2 -4 = 1/4 (9) -4 = 9/4 -4 = -7/4

f(0) = 1/4 (0)^2 - 4 = -4

f(3) -f(0)

----------

3-0

-7/4 - (-4)

---------------

3-0

-7/4 +4

-----------

3-0

-7/4 +4

-----------

3-0

-7/4 +16/4

----------------

9/4

---------

9/12

1/4

Answer:

3/4

Step-by-step explanation:

The x values are 0 and 3. Use the formula y2-y1/x2-x1

Plug in the x factors into the orginal equation. Should look like the equations below:

f(x)=1/4(0)^2-4 -------> -4

f(x)=1/4(3)^2-4 --------> -7/4Now plug it in to the formula we saved earlier.

-7/4-(-4)/3-0= -7/4+4/3= -7/4+16/4/3

Then simplify it.

9/4/3, and in this case we have a fraction in a fraction and when this happens just multiply the equation by the x variables reciprical which in this case the x is 3 so the equation is multiplied by 1/3 and you would get 9/12. Now simplify that and you get 3/4.

What is the answer to 7-6(7/5+7)

Answers

$7-6( (7)/(5)+7)=7-6( (7)/(5)+(35)/(5))=7- 6\cdot (42)/(5)=7-(252)/(5)=7-50(2)/(5)=-43(2)/(5)$

$7-6\cdot( (7)/(5) +7)=7-6\cdot7\cdot( (1)/(5)+1)=7-42\cdot (6)/(5) =7-50 (2)/(5) =-42 (3)/(5)$

Jason downloaded 288 pictures from his camera. Of the pictures, 38% are of his family. About how many pictures are of his family. Use a rate per 100 to estimate

Answers

I think this is the answer...(btw I typed it all up and i had to go somewhere and forgot to add it, sorry :( )

You should find 38% of 288
10%=28.8*3=86.4(30%)
5%=14.4
1%=2.88*3=8.64(3%)

Add them all together

86.4(30%)+14.4(5%)=100.8(35%)

100.8(35%)+8.64(3%)=109.44(38%)

109 rounded to the nearest whole number= 109

So the answer is 109 of the pictures are of his family.

Hope this helped!
And I hope I haven't confused you :)
Feels free to message me if you're still unsure :)

Solve.7. Alise separated her pictures into 3 piles. Each pile contained9 pictures. How many pictures did she have in all? Write and solve anequation to represent the problem. State the answer to the problemginal content copyright o by Houghton Mifflin Harcourt. Additions and changes to the original content are the221

Answers

well we know there are 3 piles and each pile has 9 pictures
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3 x 9 = 27
so all together we have 27 pictures..

3x9 = 27 she had 27 pictures in all

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