MATHEMATICS HIGH SCHOOL

2:3:5 = ? : 9 : ?
it is ratios
help i will give you 20 points

Answers

Answer 1
Answer:

Answer:

6:9:15

Step-by-step explanation:

multiply each number in the first ratio by three. They multiplied 3 times three to get 9, so you have to do that to each number to make it a ratio.

A ratio is like an equivalent fraction. It all has to be proportionate to the other fraction.

Examples:

4:3   is equal to 8:6

16:6 is equal to 32:12
Answer 2
Answer:

Answer: 6 :9:15

Step-by-step explanation:

3x3=9

2x4=6

5x3=15

I think almost positive

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PLEASE HELPCompare -3 and 9. Which of the following is trueA. -3 < 9 and -3 < 9B. -3 = 9 and -3 < 9C. -3 > 9 and -3 < 9D. -3 > 9 and -3 > 9
Can you answer the attached question which includes the options to answer?
Is 90209 a perfect square? Use the long division method to find out. If yes, find its square root using long division. If no, write the remainder that you obtain using long division.

Use the quadratic formula to solve the equation. X^2-7x-6=0

Answers

x = -1 
x = -6
 is that one of the options?
your answer is(7+- √(73) )/(2)

or 7+- squareroot 73/2

A box that has a width of 3 inches and a length of 4 inches is used to ship apart. The part lies along the diagonal of the bottom of the box. What is the
longest possible length of the part?
3 in
4 in
A. 2 in
O
B. 7 in
O C. 1 in
D. 5 in

Answers

Answer:D.5

Step-by-step explanation:

How do you get the answer 3a -5 from: -3a - (5-6a)?

Answers

The key here is to remember how to get rid of the parentheses.

The 'minus sign' ( - ) before the parentheses says that in order to
get rid of them, you have to change the sign of each term inside.

-3a - (5 - 6a) is the same as

-3a -5 + 6a

Add up the (-3a) and the (+6a) and you have +3a .

So the whole thing becomes 3a - 5 . 

-3a - (5-6a)=-3a-5+6a=3a-5

What is the equation of the line that passes through the points (-2,2) and (0,5)?

Answers

(-2,2), \ \ \ (0,5)\n\nFirst \ find \ the \ slope \ of \ the \ line \ thru \ the \ points \: \n \n m= (y_(2)-y_(1))/(x_(2)-x_(1) ) \n \nm=( 5-2)/(0+2) = (3)/(2) \n \n Use \ point \ form \ of \ a \ line\ with \ one \ point: \n \n y-y_(1) =m(x-x _(1))\n\nm=(3)/(2), \ \ x_(1)=-2, \ \ y_(1)=2 \n \ny- 2 = (3)/(2) (x+2)\n\ny=(3)/(2)x +3+2 \n \ny=(3)/(2)x + 5

To find the value of a mathematical expression using the order of operations is to?

Answers

Answer:

evaluate

Step-by-step explanation:
I think your looking for PEMDAS. Typical you would find the value of the ,ath expression using PEMDAS. PEMDAS stands for Parentheses Exponents Multiplication Division Addition Subtraction. When using PEMDAS (order of operation) you have to use each letter in order, So look for parentheses and if their aren't any look for the exponents which would look like x^(2) then you would do all multiplication and division then addition and subtractions

Rewrite 2x {}^(2) + 2y {}^(2) - 8x + 10y + 2 = 0
in standard form find the center and radius of the circle.show all of your work for full credit​

Answers

Final answer:

The given equation can be rewritten into the form of an equation for a circle with center (h,k) and radius r. After completing the squares for x and y coefficients, we determine the center as (2, -5/2) and radius as 1.

Explanation:

The provided equation is 2x2 + 2y2 - 8x + 10y + 2 = 0.Let's rewrite it in the form of an equation for a circle, which is (x-h)^2 + (y-k)^2 = r^2, where (h,k) represents the center of the circle and r represents the radius:

First, we group the terms related to x and y separately like this: 2(x2- 4x) + 2(y2 + 5y) +2 = 0.

Now, re-arrange the terms to complete the square: 2[(x-2)^2 - 4] + 2[(y+5/2)^2 - (5/2)^2] + 2 = 0.

Re-arrange again, this time to make it equate to zero: (x-2)^2 + (y+5/2)^2 = 1. Hence, the circle's center (h,k) is at (2, -5/2) and the radius (r) is the square root of 1, which is 1.

Learn more about Circle in Standard Form here:

brainly.com/question/29000730

#SPJ2

Answer:

first group x's with x's and y's with y's

then complete the squra with x's and y's

2x^2-8x+2y^2+10y+2=0

2(x^2-4x)+2(y^2+5y)+2=0

take 1/2 of linear coeficient and square

-4/2=-2, (-2)^2=4

5/2=2.5, 2.5^2=6.25

add that and negative inside

2(x^2-4x+4-4)+2(y^2+5y+6.25-6.25)+2=0

factor perfect squares

2((x-2)^2-4)+2((y+2.5)^2-6.25)+2=0

distribute

2(x-2)^2-8+2(y+2.5)^2-12.5+2=0

2(x-2)^2+2(y+2.5)^2-18.5=0

add 18.5 both sides

2(x-2)^2+2(y+2.5)^2=18.5

divide both sides by 2

(x-2)^2+(y+2.5)^2=9.25

that is a circle center (2,-2.5) with radius √9.25
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