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Amanda [17]
3 years ago
9

Which expression represents a negative number?

Mathematics
2 answers:
Strike441 [17]3 years ago
7 0
C. -4/5 x 8/9
a negative and positive is always a negative.
Vlad1618 [11]3 years ago
5 0
Answer:
C. -4/5 x 8/9

the product of a negative number multiplied by a positive number is always negative
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i graded 20% more papers this week than I did last week. If I graded 230 paper last week, how many papers did I grade this week?
sdas [7]

Answer:

276 papers

Step-by-step explanation:

Make 230 into 10%=23. Multiply 23 by 2 to get 20%. Add that sum (46) to 230, to get how many more papers you graded this week=276.

6 0
3 years ago
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Solve for x<br> -6x + 14&lt;-28 AND<br> 3x + 28 &lt; 25
MAVERICK [17]

Answer:

Treat the lesser than sign as an equal sign. What you do to one side, you do to the other. Isolate the variable x. Do the opposite of PEMDAS.

PEMDAS = Parenthesis, Exponents ( & roots), Multiplication, Division, Addition, Subtraction.

<u>Solve -6x + 14 < -28</u>

First, subtract 14 from both sides:

-6x + 14 (-14) < -28 (-14)

-6x < -42

Next, divide -6 from both sides to isolate the variable x. Note that when you divide (or multiply) by a negative number, you must flip the greater than or less than sign.

(-6x)/-6 < (-42)/-6

x > (-42)/(-6)

x > 7

x > 7 is your answer.

<u>Solve 3x + 28 < 25</u>

First, subtract 28 from both sides.

3x + 28 (-28) < 25 (-28)

3x < -3

Isolate the variable x. Divide 3 from both sides. Note that because you aren't dividing by a negative number (rather a positive 3), you do not flip the sign.

(3x)/3 < (-3)/3

x < (-3)/(3)

x < -1

x < -1 is your answer.

~

7 0
3 years ago
Use the number line to determine which of the following statements is true. Each tick is 1 unit. The quotient of P and S is posi
Mnenie [13.5K]

Answer:

The absolute values of Q and R are the same

Step-by-step explanation:

The absolute value is the same as long as they have the same number whether its - or +

5 0
3 years ago
Read 2 more answers
Với điều kiện nào của m thì phương trình ( 3m^2 - 4) x -1=m-x có nghiệm duy nhất?
Shtirlitz [24]
 <span>a, để pt có nghiệm thì denta ≥ 0 <=> (3-m)^2 - 4( 3-2m) ≥ 0 <=> m^2 +2m-3 ≥ 0 ( ^ là mũ) 
giải bpt mới tìm được đó ta đc : m ≤ -3 hoặc m ≥ 1 
b, * Xét m-1=0 <=> m=1 => thay m=1 vào pt thì pt có 1 nghiệm là 1/8 (1) 
* Xét m-1 ≠ 0 <=> m ≠ 1 
=> pt có nghiệm khi denta' ≥ <=> (m+3)^2 - (m-1)(-m+2) ≥0 <=> 2m^2 +3m+11 ≥ 0 (*) 
-> bpt (*) có denta < 0 nên nó luôn đúng với mọi m ≠1 -> denta của pt đã cho luôn > 0 với mọi m ≠ 1 (2) 
từ (1) (2) => với mọi m pt luôn có nghiệm </span>
6 0
3 years ago
A 12-sided number cube with the numbers 1 through 12 is rolled. Rounded to the nearest hundredth, the probability that the numbe
Gala2k [10]

Answer: 91.6666666667 pero lo redondeadas y te da de resultado 92.0% de probabilidades que no caiga un 4

Step-by-step explanation:divide 100 entre 12 y el resultado lo multiplicas por 11. no es como se saca la respuesta normalmente pero es una opción

8 0
3 years ago
Read 2 more answers
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