MATHEMATICS MIDDLE SCHOOL

I need help with this

Answers

Answer 1

Answer:

Answer:

Option B

Option C

Step-by-step explanation:

$x^(2) +2x=4$

we need to divide the coefficient of x by half since it is required for completing square, this term is added and subtracted at the same time to keep the equation intact, so we have

$x^(2) +2x+1-1=4$

later we have

$(x+1)^(2) -1=4$

$(x+1)^(2)= 4+1$

$(x+1)^(2) = 5$

$\sqrt{(x+1)^(2)} =√(5)$

we know

$\sqrt[2]{a^(2)} = abs (a)$

$abs(x+1)=√(5)$

we have

$x+1=√(5)$

$x+1= -√(5)$

so we have

$x=√(5)-1$

$x=-√(5)-1$

finally

$x=+- √(5)-1$

The second is obtained by summing the two given equations

f(x)=8x-10

g(x)=3x+5

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

f(x)+g(x)=11x-5

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Answers

20 equal sized sections

Answer:

Step-by-step explanation:

How much is a milliliter

Answers

-- 236 of them make 1 cup
-- 946 of them make 1 quart
-- the volume of a tiny cube that's 1 centimeter along each edge
-- 16.4 of them in a little cube that's 1 inch along
-- 4.9 of them make a standard cooking teaspoon
-- a perfume that cost $50 an ounce would cost $1.69 per milliliter

If you mean by 'How much is a milliliter to a litre'
It would be equivalent to:
1 milliliter = 0.001 litres

What two integers do 199 fall between

Answers

Between 198 and 200, I believe.

More comparing decimals

Answers

When comparing, think of the signs as a crocodile. A crocodile will want to eat greater (bigger) numbers than smaller numbers. So, you can think of it as that way.

2. 0.5 < 0.8 ... 0.8 is greater than 0.5

5. 0.7 = 0.70 ... This is same. 0.70 just has an extra 0 which you don't need.

8. 2.9 > 2.8 ... 2.9 is greater since 9 is bigger than 8.

11. 0.65 > 0.36 ... 65 is greater than 36. Therefore, 0.65 is greater.

14. 4.50 > 4.05 ... 4.50 has a five in the tenth place. 4.05 has five in the hundredth place.

17. 6.01 < 6.1 ... 6.1 has a one in the tenth place. 6.01 has a one in the hundredth place.

Casey likes to.she runsan additional 1/4 mile each day. on the last day she ran 1 1/4 miles. if she ran 1/2 mile her first day forhow many days has she been running

Answers

1st day (2/4)
2nd day (3/4)
3rd day (4/4)
4th day 1 1/4 So she has been running for four days. ( I didnt know if you needed miles or not but, here you go ) <3

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