MATHEMATICS MIDDLE SCHOOL

Help Please I really think its c for 77.)
What is the standard form of the equation?

5x = 4y – 3

A.
5x – 4y + 3 = 0

B.
5x = 4y – 3

C.
5x + 3 = 4y

D.
5x – 4y = –3

8.)
What is the slope of the line –6y + 2x = 18 in simplest form?

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Answers

Answer 1
Answer: \text{The standard form a linear equation is given by the formula:}\nAx+By+C=0\n\n5x = 4y - 3\n5x-4y+3=0 \Rightarrow A

-6y+2x=18\n-6y=-2x+18\ny=(-2)/(-6)x+(18)/(-6)\ny=(1)/(3)x-3\n\nm=(1)/(3)

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Plz help, so confused, will report, just need these answers and explainations, correctly, thanks:)

Round 691 to 1 significant figure!

Answers

Rounding to 1 significant figure means writing the number with only 1 non-zero figure.

Thus rounding 691 to 1 significant figure, means writing 691 as 700.


Answer: 700


Remark: if we were asked to round to 2 significant figure, we would round the number as 690

The correct answer is: 700

Explanation:

In order to round to 1 significant figure, ALWAYS REMEMBER, we will look at the first digit of the number, and make sure that it is not zero (zero case will be discussed at the end, as in this particular example zero is not the first digit).

In 691, the first digit at hundredth place is 6. Now we will look at the next digit. In this case, the next digit is 9, which is greater than 5, therefore, the 6 will round off to 7, and rest of the digits will become zero to round it off to one significant figure. Hence, the answer is 700.

(EXTRA INFORMATION) Zero case:

If we have the following number: 0.951. Now the first digit is 0, but as there is a decimal point after that, therefore, it is insignificant. We will move on to the first digit after the decimal point, which is 9 in this case. Now, we will look at the next number. In this case it is 5, therefore, 0.951 is closer to 1.0 after rounding off. Hence, in this case the answer will be 1.0.

How do you get to 104 using 2 3 5 8

Answers

( 3 x 5 x 8 ) - ( 2 x 8 ) = 104

Solve 2x2 + 12x − 14 = 0 by completing the square, options: A. 2(x + 6)2 = 26; x = −6 + square root 13, x = −6 − square root 13 B. 2(x + 6)2 = 20; x = −6 + square root 20, x = −6 − square root 20 C. 2(x + 3)2 = 32; x = 1, x = −7 D. 2(x + 3)2 = 32; x = 13, x = 19

Answers

I just solved this one
anothe way is undistribute the 2 first and move -14 to side
2(x^2+6x)-14=0
comlete the squer inside and add negative
2(x^2+6x+9-9)-14=0
factor perfect square
2((x+3)^2-9)-14=0
distribute
2(x+3)^2-18-14=0
2(x+3)^2-32=0
add 32 both sides
2(x+3)^2=32
divide 2
(x+3)^2=16
sqrt both sides
x+3=+/-4
minus 3
x=-4-3 or 4-3
x=1 or -7

answer is C

Answer:

the answer is c: 2(x + 3)2 = 32; x = 1, x = −7

Step-by-step explanation:

I took the test

Write one number that is a factor of 13

Answers

1,13 are the only possible factors
I'll do better than that.
I'll write ALL of them:

' 1 '  and  ' 13 '.

That's all there are.

If 4 bags of corn can feed a herd of cows for 6 days, how many bags will feed the herd for 9 days ?

Answers

1 BAG= 4/6 days which is 2/3
4 BAGS= 6 days
? BAGS= 9 days
9 days =2/3 X 9 days
therefore 2 X 3 =6 BAGS
therefore 6bags = 9days

1 BAG= 4/6 days which is 2/3

4 BAGS= 6 days

? BAGS= 9 days

9 days =2/3 X 9 days

therefore 2 X 3 =6 BAGS

therefore 6bags = 9days

31/6 as a mixed number

Answers

5 1/6 divide 6 into 30 to get 5 and then you have one left over.
Divide 31 by 6
You should get
5 remAinder 1

Because 5X3 is 30 and 1 is 31
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