MATHEMATICS MIDDLE SCHOOL

For which points is the sum of their x- and y-coordinates greater than 4 [for example, (5, 2) since 5 + 2 = 7, or (–3, 9) since –3 + 9 = 6]?A.
E, X, Z

B.
Z, E

C.
X, L

D.
D, L
For which points is the sum of their x- and - 1

Answers

Answer 1
Answer: I think it's A! DON'T HATE ME IF ITS WRONG! i'M TRYING!

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How do you round 46,491 to the nearest ten-thousand

Answers

You look at the place value before that value. You look at the place value on your right and tell yourself if it's 5 and more you round up, if it's 4 and less you stay and the others turn into 0s. Like this: 46,491 rounds to 46,000.
46,491 rounded to the nearest ten thousand is 50,000.

Because 46,491 is closer to 50,000 than it is to 40,000.

4 glue sticks cost $7.76

Which equation would help determine the cost of 13 glue sticks?

Answers

Answer:

y=1.94x

13 glue sticks cost $25.22.

Step-by-step explanation:

4 blue sticks cost $7.76, this means that one glue stick costs

$7.76/4 = $1.94.

Let y be the cost of the glue sticks, and x be the number of glue sticks; then

\boxed{y=1.94x}

We can use this equation to find the cost of 13 glue sticks; we just put x=13\ into our equation and it gives:

y=1.94(13)=25.22

So 13 glue sticks cost $25.22.

Use vertical multiplication to find the product of:x ^(3) + 2x + 3 * x ^(3) - x + 1

​

Answers

Answer:

x^6+x^4+4x^3-2x^2-x+3

Step-by-step explanation:

x^3+2x+3

*(x^3-x+1)

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

First step multiply your terms in your first expression just to the 1 in the second expression like so:

x^3+2x+3

*(x^3-x+1)

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

x^3+2x+3  Anything times 1 is that anything.

That is, (x^3+2x+3) \cdot 1=x^3+2x+3.

Now we are going to take the top expression and multiply it to the -x in the second expression. -x(x^3+2x+3)=-x^4-2x^2-3x.  We are going to put this product right under our previous product.

x^3+2x+3

*(x^3-x+1)

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

x^3+2x+3

-x^4-2x^2-3x  

We still have one more multiplication but before we do that I'm going to put some 0 place holders in and get my like terms lined up for the later addition:

x^3+2x+3

*(x^3-x+1)

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

0x^4+x^3+0x^2+2x+3

-x^4+0x^3-2x^2-3x+0  

Now for the last multiplication, we are going to take the top expression and multiply it to x^3 giving us x^3(x^3+2x+3)=x^6+2x^4+3x^3. (I'm going to put this product underneath our other 2 products):

x^3+2x+3

*(x^3-x+1)

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

0x^4+x^3+0x^2+2x+3

-x^4+0x^3-2x^2-3x+0  

x^6+2x^4+3x^3

I'm going to again insert some zero placeholders to help me line up my like terms for the addition.

x^3+2x+3

*(x^3-x+1)

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

0x^6+0x^4+x^3+0x^2+2x+3

0x^6-x^4+0x^3-2x^2-3x+0  

x^6+2x^4+3x^3+0x^2+0x+0

----------------------------------------------------Adding the three products!

x^6+x^4+4x^3-2x^2-x+3

The distance of planet Jupiter from the Sun is approximately 7.8 ⋅ 108 kilometers, and the distance of planet Saturn from the Sun is 1.5 ⋅ 109 kilometers. About how many more kilometers is the distance of Saturn from the Sun than the distance of Jupiter from the Sun

Answers

Answer:

Option C is the correct answer,

Step-by-step explanation:

The distance of planet Jupiter from the Sun is approximately 7.8 x 10⁸ kilometers.

Distance from Jupiter to Sun = 7.8 x 10⁸ kilometers

The distance of planet Saturn from the Sun is 1.5 x 10⁹ kilometers.

Distance from Saturn to Sun = 1.5 x 10⁹ kilometers

Difference in distances = 1.5 x 10⁹ - 7.8 x 10⁸ = 15 x 10⁸ - 7.8 x 10⁸

Difference in distances = 7.2 x 10⁸ kilometers

Answer: Difference in distances = 7.2 x 10⁸ kilometers

Step-by-step explanation:

The width of a rectangle is 6 ft. What os the perimeter of the rectangle if its area is 42 square feet? A 26 feet B 36 feet C 42 feet D 48 feet

Answers

Area (rectangle)=lenght x width
width= 6 ft
area=42 ft²

1) we have to calculate the length.
42 ft²=lenght x 6 ft
length=42 ft²/6 ft=7 ft

2) Now we have to calculate the perimeter.
Perimeter=2 lenght + 2 width
Perimeter=2(7 ft) + 2(6 ft)=14 ft + 12 ft=26 ft

answer: the perimeter is 26 ft. 

Rob is saving to buy a new MP3 player. For every $15 he earns babysitting, he saves six dollars. On Saturday, Rob earned $75 babysitting. How much money did you save?

Answers

If he saves $6 from every $15 he gets, then getting $75 means he saves $30.
Lets says he is paid 15 dollars every hour, and from those he saved 6 dollars. If he earned 72 dollars, that means he is paid 5 times (because 75/15 is 5). So if every time he is paid he saves $6, being paid 5 times means he saves $30 ($6 *5).
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