What numbers multiply to 6 and add up to 9
Answers
x + y = 9
x + y = 9
x - x + y = -x + 9
y = -x + 9
xy = 6
x(-x + 9) = 6
x(-x) + x(9) = 6
-x² + 9x = 6
-x² + 9x - 6 = 0
-1(x²) - 1(-9x) - 1(6) = 0
-1(x² - 9x + 6) = 0
-1 -1
x² - 9x + 6 = 0
x = -(-9) ± √((-9)² - 4(1)(6))
2(1)
x = 9 ± √(81 - 24)
2
x = 9 ± √(57)
2
x = 4.5 ± 0.5√(57)
x + y = 9
4.5 ± 0.5√(57) + y = 9
- (4.5 ± 0.5√(57)) - (4.5 ± 0.5√(57))
y = 4.5 ± 0.5√(57)
(x, y) = (4.5 ± 0.5√(57), 4.5 ± 0.5√(57))
The two numbers that multiply to 6 and add up to 9 are 4.5 ± 0.5√(57).
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If the mean of positively skewed distribution is 126 which of these values could be the median of the distribution ? A. 126 B. 122 C. 130 D. 134
The sum of 5x and 2x is at least 14
Answers
we take away the negative value
simply 9 rows and 9 columns.
$853
$970
$1,170
Answers
Answer:
The question is incomplete, below is a possible match to the complete question:
The Chambers family has a net monthly income of $6,500. A circle graph titled Chambers Family Budget. Housing is 25 percent, Food is 20 percent, Savings is 7 percent, Transportation is 12 percent, medical is 10 percent, clothing is 18 percent, emergency fund is 8 percent. If the family decides to reduce its clothing budget by $200 a month, how much will the new clothing budget be? Round to the nearest dollar.
$161
$853
$970
$1,170
The correct answer is $970
Step-by-step explanation:
To calculate the old budget for clothing, let us first convert from percentage to monetary value, and this is done as follows:
Clothing = 18% of monthly income
where: monthly income = $6,500
∴ clothing = 18/100 × 6,500
= 0.18 × 6,500 = $1,170
old budget = $1,170
If the family decides to reduce its clothing budget by $200 a month, the new budget will be:
New budget = old budget - $200
= 1,170 - 200 = $970.
Therefore, the new budget will be $970
Answer:
C. $970
Step-by-step explanation:
edge 2021
a - b + c - d + e - f + g
a + b + c + d + e - f + g
a - b + c - d + e + f - g
Answers
Answer:
Step-by-step explanation:
We know that,
(-)(-) = (+),
(-)(+) = (-),
(+)(-) = (-)
(+)(+)=(+)
Now,
Here, the given expression is,
Hence, Second option is correct.
= a - {b - [c - d + e - f] - g}
= a - {b - c + d - e + f - g}
= a - b + c - d + e - f + g.
so ur answer is the third one C there all equivalent so the last one is the answer choice so there u go
Answers
Answer:
0.11mm/day
Step-by-step explanation:
We are given that
A particular is eroding at the rate=4 cm/ year
We have to convert this rate on milimeters per day.
We know that
1 year=365 days
1 cm=10 mm
Rate=
Rate=
Answer:0.11 mm/day
Answers
Answer:
The relationship symbol that makes the statement true is '>'.
Step-by-step explanation:
Given,
In triangles ABC and EDF,
∠A = ∠D
Since, the sum of all interior angles of a triangle is supplementary,
⇒ ∠A + ∠B + ∠C = 180° and ∠D + ∠E + ∠F = 180°
⇒ ∠A = 180° - ∠B - ∠C and ∠D = 180° - ∠E - ∠F,
By substituting the values,
180° - ∠B - ∠C = 180° - ∠E - ∠F
- ∠B - ∠C = - ∠E - ∠F
∠B + ∠C = ∠E + ∠F
∠B + 20° = ∠E + 30° ( given ∠C = 20° and ∠F = 30° )
∠B = ∠E + 10°
⇒∠B > ∠E
Hence, the relationship symbol that makes the statement true would be '>'.
7.7,0.7
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least